IR5000-6000tr

(E82/E72 Lite)

The Trainer’s Reference is prepared as a source of reference for Sales Companies to help prepare for training

on a new product.

Trainer’s Reference

for

iR5000/6000

Use of this reference should be strictly supervised.

CONFIDENTIAL

Date: June, 2000

The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>

CONTENTS

Chapter 2 Outline of New Functions

System Construction ..............................................................................................2-1Outline of Electrical Circuitry ..................................................................................2-3Image Processing by the Main Controller ............................................................2-15Controlling the Power Supply for the Main Controller ..........................................2-20Original Exposure System ....................................................................................2-25Identifying the Size ...............................................................................................2-26Image Processing in the Reader Unit ...................................................................2-30Laser Exposure System .......................................................................................2-33Image Formation ..................................................................................................2-36Pickup/Feed System ............................................................................................2-44Fixing System .......................................................................................................2-48Soft Counters .......................................................................................................2-50

Chapter 1 Outline of the Product

External View .........................................................................................................1-1Features .................................................................................................................1-2Outline of the Product .............................................................................................1-4Features in Service ................................................................................................1-5General Specifications ...........................................................................................1-7Additional Functions ...............................................................................................1-9Types of Accessories ........................................................................................... 1-13

Chapter 3 Maintenance and Inspection

Maintenance and Inspection ..................................................................................3-1Soft Counters .........................................................................................................3-6Downloading .........................................................................................................3-10

Chapter 4 Accessories

DADF-D1................................................................................................................. 4-1Finisher-F1/Saddle Finisher-F2 ............................................................................. 4-21

Cha

pter

1 O

utlin

e of

the

Pro

duct

1-1

Trainer's Reference


External View

1. External View of the E82/E72

Figure 1-101

[1] Finisher

[2] Copy tray

[3] Shift tray

[4] E82/E72 (for both, ADF comes as standard)

[5] Side paper deck

[1]

[2]

[3]

[5]

[4]

1-2

Trainer's Reference


Features

Figure 1-102 Cross Section of the E82/E72

[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16]

[17]

[18]

[19]

[20]

[21]

[22]

[23]

[24]

[25]

[26]

[27]

[30]

[28]

[29]

[31]

[33]

[32]

[34]

[35]

[36]

[37]

[38]

[39]

[40]

[41]

[42]

[43]

[44]

[45]

[46]

1-3

Trainer's Reference


Features

[1] ADF reading glass

[2] No. 1 mirror

[3] Scanning lamp

[4] Copyboard glass

[5] Feed assembly

[6] Fixing web

[7] Feeding assembly

[8] Laser mirror 3

[9] Laser mirror 2

[10] Laser mirror 1

[11] Drum cleaner assembly

[12] Primary charging assembly

[13] Photosensitive drum

[14] Laser mirror 4

[15] CCD unit

[16] Laser unit

[17] Developing cylinder

[18] Pre-transfer charging assembly

[19] Manual forwarding roller

[20] Manual feed roller

[21] Manual separation roller

[22] Registration roller

[23] Transfer charging assembly

[24] Separation charging assembly

[25] Right deck feed roller

[26] Right deck separation roller

[27] Right deck pickup roller

[28] Right deck

[29] Cassette 3 pickup roller

[30] Cassette 3 feed roller

[31] Cassette 3 separation roller

[32] Cassette 4 pickup roller

[33] Cassette 4 feed roller

[34] Cassette 4 separation roller

[35] Cassette 4

[36] Cassette 3

[37] Left deck

[38] Left deck separation roller

[39] Left deck feed roller

[40] Left deck pickup roller

[41] Fixing lower roller

[42] Internal delivery roller

[43] External delivery roller

[44] Fixing upper roller

[45] No. 3 mirror

[46] No. 2 mirror

1-4

Trainer's Reference


Outline of the Product

1. Background of the Product

a. Market Environment

The black-and-white digital copier market is expanding rapidly led by

15- to 30-cpm machines. The competition have started to shift their efforts

to 40- to 65-cpm machines, introducing a full line of machines and

realizing reduced cost with the aim of replacing analog machines (e.g.,

NP6050).

In addition, most companies are making efforts in the field of

networking, and a shift from CV to PV is becoming conspicuous in

keeping with a shift to high-speed machines.

b. Objectives

• To introduce a full line of digital machines by brining in a 60-cpm

machine with schedule/cost and the moves of the competition in mind.

• To bring in a machine with a competitive edge in terms of cost

performance, serving as an office printer.

• To bring in a machine capable of accommodating various scanner/

printer combinations based on a standardized interface.

• To enable separation of a scanner and a printer (IP-STD model only)

while at the same time to enable the integration of various types of

scanners and printers.

2. Features

High speed: 50 cpm (E82), 60 cpm (E72)

High image quality: read resolution of 600 × 600 dpi, print resolution of 1200

(equivalent) × 600 dpi

Hard disk: comes as standard (6.4 GB), enabling electronic sorting

Paper source: large-capacity holding as many as 7,650 sheets of paper

3. Estimated Life of the Product

3,000,000 sheets or 5 yr.

4. Recommended Copy/Print Volume

30,000 to 50,000 sheets/month

5. Types of Chemical Products

1. Photosensitive Drum

A new type of drum specially designed for digital machines is used (A-Si/

80-dia.); it has an estimated life of 3,000,000 sheets.

2. Toner

It is used in common with the NP6050 (1.65 kg/bottle); it is capable of

processing 30,000 sheets (6% line originals; 0.055 g/A4).

1-5

Trainer's Reference


Features in Service

Figure 1-104 Scanning Lamp

2. Use of a Xenon Lamp

A xenon lamp does not have a filament, in principle making it free of breakage

caused by vibration and, ultimately, offering a long life.

Figure 1-103 Controller Unit

1. Integrated Controller

The controller unit governing the entire system is integrated to the back of the

machine, facilitating replacement work.

When a high-frequency voltage is

applied across terminals of a xenon

lamp, electric discharge occurs within

the xenon gas, causing the fluores-

cent material inside the lamp to emit

light.

1-6

Trainer's Reference


Features in Service

Figure 1-105 Cassette/Front Deck

3. Pickup Mechanism for the Cassette/Front Paper Deck

The machine's pickup mechanism for the cassette/paper deck is from the

GP605 so that individuals having experience with the GP605 can easily

replace the feed roller and separation roller.

4. Construction of the Process Unit

The construction of the process unit consisting of the photosensitive drum,

primary charging assembly, and cleaner is more or less the same as that of the

NP6050 so that individuals having experience with the NP6050 can easily

service the parts associated with the process unit.

Figure 1-106 Process Unit

1-7

Trainer's Reference


General Specifications

Console

Fixed

Xenon lamp

Lens array (fixed focal point; F3.7)

Amorphous silicon drum (80-dia.)

1. Type

Body

Copyboard

Light source

Lens

Photosensitive medium

Indirect electrostatic reproduction

Corona

Laser

Auto or manual

Dry, single-component toner projection

Front paper deck (2 cassettes, auto)

Front cassette (2 cassettes; auto)

Manual tray (about 50 sheets of 80 g/m2)

Corona

Corona (static separation)

Blade

Heat roller

230 V: 600 W (main) + 600 W (sub)

2. Mechanisms

Reproduction

Charging

Exposure

Copy density adjustment

Development

Pickup

Transfer

Separation

Cleaning

Fixing

600 × 600 dpi

1200 (equivalent) × 600 dpi

E72: 60 cpm (A4/LTR, 1-on-N, from cassette/

deck)

E82: 50 cpm (A4/LTR, 1-on-N, from cassette/

deck)

Leading edge: 4.0 +1.5, -1.0 mm (4.5 ± 8 mm)*1

Trailing edge: 2.0 ± 1.5 mm (2.0 ± 1.8 mm)*1

Left/right: 2.5 ± 1.5 mm (2.5 ± 2.0 mm)*1

*1:The value in parentheses indicate when the

ADF is in use.

Universal cassette*2: A3, B4, A4, B5, A5R, A4R,

B5R, 279.4×431.8 mm (11×17), LGL, LTR,

LTRR, STMT (vertical feeding)

*2:In the case of cassette 4 of the 230-V model,

fixed to a single size.

Capacity:550 sheets (approx.; 80 g/m2)

3. Functions

Read resolution

Print resolution

Copying speed

Image margin

Cassette

1-8

Trainer's Reference


General Specifications

A3, B4, A4, B5, A5R, A4R, B5R, 27.94×431.8

mm (11×17), LGL, LTR, LTRR, STMT (vertical

feeding)

Capacity: 50 sheets (approx.; 80 g/m2)

Capacity: 250 sheets (approx.; 80 g/m2 equivalent)

6.4 GB

Manual feed tray

Delivery tray

Hard disk capacity:

Temperature: 15° to 30°C

Humidity: 5% 80%

Atmospheric pressure:810.6 to 1013.3 hpa (0.8 to

1.0 atm)

E72: 1.5 KW max.

E82: 1.5 KW max.

In Standby E72: W E82: W

During copying, E72: 78 dB max., E82: 71 dB max.

In standby, E72: 55 dB max., E82: 50 dB max.

(sound power level, impulse mode)

0.05 ppm or less (after 250,000 sheets)

mm (W) × mm (D) × mm (H)

200 kg (approx.)

4. Others

Operating environment

Power consumption

Noise

Ozone

Dimensions (mm)

Weight

1-9

Trainer's Reference


Additional Functions

1. Extension Mode

Description

Copies both left and right pages (as of an open book) on separate sheets in a single

operation.

Inserts a sheet between transparencies when copies are made on transparencies.

Reproduces an original by moving the entire image to the center or a corner.

Prints a front/back cover and interleaves on paper different from paper used for the

body.

Accepts originals of mixed sizes (different in breadthwise dimension or different

sizes) to print on appropriate sheet sizes.

Creates a margin on the side of copies.

Erases frame images or hole images of the original from copies.

Prints 2, 4, or 8 originals on a single sheet of paper by automatically reducing them.

Reproduces a single original on sheets of a selected size by automatically enlarging

them by 200% or 400%.

Reproduces an original by reversing its black and white areas.

Reproduces an original by increasing its contrast (black and white).

Stores or retrieves a copying mode.

Recalls up to three most recently stored copying modes for printing.

Reproduces single- or double-sided originals so that the prints will be in the form of

a book when folded.

Prints a single image a specific number of times vertically/horizontally.

Prints an image as it is reflected in a mirror.

Reproduces originals placed at intervals in a single session.

Reproduces an original of extra length (needs settings in service mode).

Mode

Two-Page Separation

Transparency Interleaving

Shift

Cover/Sheet Insertion

Different Size Originals

Margin

Frame Erase

Image Combination

Image Separation

Nega/Posi

Sharpness

Mode Memory

Recall

Booklet

Image Repeat

Mirror Image

Job Build

Extra-Length Mode

1-10

Trainer's Reference


2. User Mode


COMMONSETTINGS

INITIAL FUNCTION

AUTO CLEAR SETTING

AUDIBLE TONES

INCH ENTRY

DRAWER ELIGIBILITYFOR APS/ADS

STORE PAPER TYPE

ENERGY SAVER MODE

LTRR/STMT ORIGINALSELECTION

TRAY DESIGNATION

PRINTING PRIORITY

MANUAL PAPER STANDARDSETTINGS

LOCAL PRINT STANDARDMODE

INITIALIZE COMMONSETTING

Use it to select either Copy*, Box, or Other.

Use it to select either Return* or Do Not Return.

Use it to turn on/off the buzzer. (input sound, warning, job end; foreach, on*/off)

Use it to select or de-select inch input. (on/off*; however, if USA,off)

Use it to select Auto Select for each cassette; for the copier and theprinter. (for manual feed, on/off*; for each cassette, on*/off)

Use it to register a paper type for the front paper deck, each cassette,or side paper deck. (plain paper*, letterhead, thick paper, coloredpaper)

Use it to change the level of power save mode. (-10%*, -25%, -50%,no return time)

Use it to specify distinction between LTRR and STMT. (manual*,LTRR, STMT)

Use it to select a function for the finisher tray. (tray A: copier*,printer, other; tray B: copier, printer*, other)

Use it to set priority of printing. (copier*, printer, other)

Use it to specify storage of standard mode for manual feed paper.(yes, no*).

Use it to set standard mode for local printing. (paper select, quantity,sort, double-sided printing, delete file after printing, delete file)

Use it to initialize common settings to factory settings. (yes, no)

*: At time of shipment.

1-11

Trainer's Reference



COPYSETTINGS

STANDARD KEY 1/2SETTINGS

AUTO ORIENTATION

AUTO COLLATE

JOB DURATION DISPLAY

IMAGE ORIENTATIONPRIORITY

PHOTO MODE

MANUAL FEED PAPER STAN-DARD MODE REGISTRATION

STANDARD SETTINGS

INITIALIZE COPY SETTING

Use it to register a preference key to be displayed on the Basicscreen; use each mode key on the Extension Mode screen and eachmemory key in mode memory.

Use it to automatically rotate an image by computation of originalsize and reproduction ratio to copy it on a selected sheet. (on*, off)

Use it to switch to sort mode upon placement of originals in thefeeder. (on*, off)

Use it to specify whether copy wait time should be displayed. (on,off*)

Use it to select priority on image orientation. (on, off*)

Use it to select film photo mode. (on, off*)

Use it to register manual feed paper standard mode. (yes, no*)

Use it to change the copying mode registered as standard. (register,initialize)

Use it to initialize the copier settings to factory settings. (yes, no)

TIMERSETTING

DATE/TIME SETTINGS

CHANGE AUTO SLEEP TIME

CHANGE AUTO CLEAR TIME

LOW POWER MODE TIME

TIME UNTIL UNIT QUIETSDOWN

DAILY TIMER SETTING

Use it to set the current date and time.

Use it to turn off the control panel power switch to start sleep state atthe end of operation. (0, 30 min; 1*, 2 to 24 hr)

Use it to set the time after which the touch panel display returns tothe Basic screen at the end of operation. (0, 1, 2* through 9 min)

Use it to set the time after which a shift is made to low power modeat the end of operation. (0, 10, 15*, 20, 30, 40, 50, 60, 90 min; 2 to 4hr)

Use it to set the time after which silent mode is started at the end ofoperation. (0, 1* to 9 min)

Use it to set the time at which the control panel power switch turnsoff automatically on a weekly basis. (every day from Sunday to Sat-urday; 00:00 to 23:59; 1-min interval)

CLEANING/ADJUSTMENT

ZOOM FINE ADJUSTMENT

FEEDER CLEANING

WIRE CLEANING

SADDLE STITCH STAPLEREPOSITIONING

SADDLE STITCH POSITIONADJUSTMENT

Use it to make fine-adjustments when a small discrepancy occurs insize between original and copy for vertical and horizontal ratios.(-1.0% to +1.0%; 0.1% interval)

Use it to remove dirt from the pickup roller assembly by setting pa-per and moving it in the ADF.

Use it to clean the charging wires.

Use it to edge out the staple band in the middle binder unit.

Use it to adjust the middle position adjustment. (-2.0 to 0.0% to +2.0mm; 0.1-mm intervals)

*: Factory setting.

1-12

Trainer's Reference


MAIL BOXSETTINGS

BOX SET/STORE

STANDARD SCAN SETTINGS

Use it to register/set a box. (up to 100 boxes; box selection, ID num-ber, file storage period, name, box initialize)

Use it to change the standard mode used for read settings. (register/initialize)


REPORTSETTING

USER MODE SETTING Use it to print out the user mode settings.

SYSTEMSETTING

ADMINISTRATOR INFOSETTING

MACHINE INFO SETTING

DEPARTMENT IDMANAGEMENT

NETWORK INITIALIZATION

REMOTE UI SETTING

(ACCESSORY SUPPORT)

Use it to register system control information. (control ID register, IDnumber set, administrator name register, administrator mail addressregister, administrator contact address register, administrator com-ment register)

Use it to register the name of a device and its location.

Use it to select or de-select group ID control, register an ID number,and set count control.

Use it to make settings for TCP/IP, NetWare, AppleTalk, andEthernet drivers.

Use it to specify the use of a remote user interface. (use*, do not use)

*: Factory setting.

1-13

Trainer's Reference


Type Product name Remarks

Document handling DADF-D1 New

Pickup handling 3.5k Side Paper Deck New

Delivery handling Finisher-F1 New

Saddle Finisher-F2 New

Shift Tray New

Communications control Copy Data Controller-A1 Common

Remote Diagnostic Device II Common

Control Card-IV Common

Accessory board NA

1. Types of Accessories

Types of Accessories

2. DADF-D1

The DADF-D1 has been newly developed exclusively for stream reading, and

it comes as standard.

The machine is equipped with a reversal mechanism, capable of making

double- or single-sided copies of double-sided originals.

3. 3.5k Side Paper Deck

It is based on the Side Paper Deck-C1 (for the GP605), with modifications to

the deck main motor, sensor arrangement, and mounting kit.

4. Finisher/Saddle Finisher

It is based on the Finisher-C1/Saddle Finisher-C2 for the GP405 with modifi-

cations; it allows the addition of a specially designed reciprocating punch

unit as an accessory.

5. Shift Tray

The shift tray has been designed exclusively for the machine. Its construction

is made simple, and it is capable of accommodating about 500 sheets of paper

(80 g/m2).

6. Copy Data Controller-A1/Remote Diagnostic Device II

The existing controllers may be used as they are.

7. Control Card-IV

The existing control card may be used as it is.

8. ACC Board

A new network board kit, LIPS board kit, and PDL board kit are being devel-

oped and are expected for release.

Cha

pter

2 O

utlin

e of

New

Fun

ctio

ns

2-1

Trainer's Reference


System Construction

1. Functional Construction

The functional construction of the machine is as follows:

a. Controller Unit

It controls the system as a whole, control panel, and digital image

processing; it also stores image data and communicates with external

devices.

b. Reader Unit

The machine's reader unit has been developed newly.

Most image processing is done by the controller unit, and the reader unit

mainly controls the following:

• Scanner sequence

• Scanning lamp

• Original size detection

• Shading correction

• Communication with ADF

c. Printer Unit

It is based on the NP6251, which is already on the market. A laser unit has

been added to the NP6251, and its duplexing unit uses a newly designed

through-path duplexing mechanism.

d. Control Panel

It uses 1/4 VGA LCD.

2-2

Trainer's Reference


System Construction

Figure 2-101

Control panel

DC controller PCB

DC powersupply PCB

Main controller PCB

CCD/APPCB

Laser driver PCB

Reader controller PCB

Laser scanner

Original

Originalillumination

Optical path

Charging

Development

Trans-fer

Pickupcontrol

Manualfeed tray

Cleaning

Lower feeding assembly

Cassette 3

Deliverytray

Feeding

Sep-ara-tionFixing

Photo-sensitivedrum

Cassette 4

Hard disk

[Original exposuresystem]

[Image processing system]

[Laser exposure system]

[Pickup/feeding syste]

[Image formation system]

[Control system]

Accessory boards

Right deckLeft deck

Side paper deck (accessory)

Controller block

2-3

Trainer's Reference


Outline of Electrical Circuitry

1. Reader Controller PCB

2. DC Controller PCB

Name Description

CPU Controls the scanning lamp, controls the original size

detection mechanism, controls shading correction,

controls the CCD, controls the scanner sequence, controls

the copier sequence, controls communication with the

ADF, controls service mode

ROM Stores the control program

RAM Stores control data, stores service mode data, stores

user mode data

EEPROM Backs up RAM data

Name Description

CPU Controls jobs, controls operation state, controls fixing

temperature, controls high voltage, controls potential,

controls toner supply, controls paper feed, controls

printer sequence, controls output, controls motors,

controls the finisher (accessory), controls communica-

tion with the controller unit, controls service mode

DIMM ROM Flash memory for storing the control program

RAM Stores RAM data, stores service mode data, stores

user mode data

EEPROM Backs up RAM data

ROM Mask ROM for the control program (for future use)

2-4

Trainer's Reference


Figure 2-102


DC

con

trol

ler

PC

B

HV

T P

CB

Pot

entia

lco

ntro

lP

CB

CC

D/A

PPC

B

BD

PC

B

AD

F

Sca

nner

mot

or

Rea

der

cont

rolle

r P

CB

Mai

n co

ntro

ller

PC

B

Con

trol

pane

l

Inve

rter

PC

B

LA2

Lase

rsc

anne

rm

otor

M15

M3

IC12

5(C

PU

)

IC12

1IC

122

(RA

M)

DC

load

• C

lutc

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Sol

enoi

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Mot

or •

Sen

sor

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Etc

.

Insi

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ttepa

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PC

B

Dup

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Mot

or •

Sen

sor

Etc

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com

mun

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IC50

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com

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DIM

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(IC

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IC50

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(ac

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Acc

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(har

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sk)

IC65

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IC50

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IC12

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2-5

Trainer's Reference



3. Main Controller PCB

a. Outline

The machine's main controller PCB is the result of integrating some of the

functions of the IP (image processor) PCB used in existing digital copiers

and some of the functions of the MFC (multi-function controller) PCB and

DC controller PCB; in addition to these, it also has newly expanded

functions.

The main controller PCB has the following functions:

• Image processing of the image data sent from the reader unit

• Image processing of the image data sent to the printer unit

• Handling input/output for the control panel

• Handling of memory image data

• Controlling the image server (HDD)

If a network accessory is installed, the following functions will also be

available:

• PDL data (PS, PCL) rasterization

• Network communication

• Interfacing with the host computer

The main controller PCB consists of a CPU core and various interfaces

(network interface, memory interface, scanner/printer interface); the

integration of these has enabled and facilitated flexible handling of image

data.

2-6

Trainer's Reference



b. Construction of the Main Controller PCB

The following shows the construction of the main controller PCB:

Figure 2-103

IPC5V

IP ASIC(MUSIGNY)

5V

CPU

3.3VB

SDRAM DIMM 3.3VB

SRAM(4Mbit)3.3VA

Primarybattery1000mA

RTC3.3VA

IPC I/F

ROM bus

I 2C bus

OSC System(90MHz)OSC PCI(30MHz)

OSCPRINTER

I/O chip(Spinoa)3.3VB

SD

RA

M b

us

MII bus

3.3VB(All-Night) 3.3VA 5V

5VR(All-Night

Serial I/F

BAT. I/F

External BUS

Font ROM(16Mbit)

5V

PC

I exp

ansi

on S

lot

PC

I exp

ansi

on S

lot

PC

I exp

ansi

on S

lot

LCX2453.3VA

PM-225V

SRAM 5V

SRAM 5V

PM-22 bus

SDRAM DIMM(32,64,128,256MB/slot)

DDI-S I/FReceiver

3.3VA

DDI-P I/FDriver3.3VA

DDI-PI/F

DDI-SI/F

ROM DIMM 8MByte 3.3VB

1 2 3 4

PM-225V

SRAM 5V

SRAM 5V

PCI bus

DII-

P b

us

DII-

S b

us

Reset(3.3VB)

Reset(3.3VA)

Reset(5V)

All-NightReset

Non-All-NightReset

Reset circuit

IEE

E12

84(p

erip

hera

l)

RIS

ER

I/F

E-I

DE

I/F

UI I

/F

HDD

OptionRiser card

Power supply I/F[Option]

Ethernet I/F

PHY

LAN

I/F

MACAddress

IEEE1284Buffer5VR

Serialport I/F

PCI Arbiter(PANDA)

3.3VB

COIN ROBOT I/F

2-7

Trainer's Reference



c. Internal Buses

The major buses of the main controller PCB are as follows:

c-1 SDRAM Bus

It connects the CPU and an SDRAM. It is synchronized with the system

clock (90 MHz), and its width is 64 bits. As many as two SDRAM DIMMs

(dual inline memory module) may be installed, and these DIMMs may be

of different capacities. The type of an installed SDRAM DIMM is

automatically identified by obtaining the SPD ROM information from the

I2C bus, explained later.

c-2 ROM Bus

It is a 32-bit width data bus connecting the CPU with a ROM DIMM. Its

timing of access is based on the system clock (90 MHz), and the clock

pulses may be set so that they are multiples of 90 MHz.

It is used not only for reading from a ROM but also for writing to a flash

ROM installed to a ROM DIMM slot and for setting of PM-22 registers; in

other words, it is a bi-directional bus.

c-3 PCI Bus

It serves as an internal bus connecting the CPU with an I/O chip (SPINOA)

within the main controller PCB.

Attachment of a raiser card to the controller will enable installation of

three PCI expansion slots (expansion bus).

The PCI bus of the main controller PCB complies with PCI Rev. 2.1

specifications: 32 bits, 33 MHz max. (30 MHz actual).

The power supplied to the expansion slots is as follows:

Slot 3: +3.3 V 3A, +5 V

Slots 2 and 1 combined:+3.3 V 4A, +5 V

c-4 MII Bus

It is used to connect to the network interface (Ethernet card; accessory). It

can connect the CPU to PHY on the network interface card.

c-5 DII-S/P Bus

It is used to connect the CPU to an IP ASIC. The DII-S bus is used for scan

data sent from the reader unit, while the DII-P bus is used for print data

sent to the printer unit.

+12 or -12V are not supplied.

2-8

Trainer's Reference



c-6 External Bus

It is used to connect the input/output control I/O chip and an image

processing IP ASIC or an SRAM serving as a backup memory (storing

user settings, parameters); it is a 16-bit wide data bus.

The I/O chip serves as a bridge between the PCI bus and the IP ASIC

setting bus.

c-7 E-ID Bus

It is used to connect the input/output I/O chip and the hard disk.

It supports a data transfer mode of up to Ultra DMA 33.

c-8 PM-22 Bus

It is used to connect the CPU and a PM-22.

c-9 I2C Bus

It is an I2C specification serial bus, and is used to connect the CPU and the

following devices:

Device Description

SPD ROM 0 SPD of SDRAM DIMM0

SPD ROM 1 SPD of SDRAM DIMM1

MAC ROM For MAC address

(on the network interface card)

Clock pulse generator Controls clock pulses.

2-9

Trainer's Reference



DIMM

It stands for "Dual-Inline Memory

Module."

CL=2, CL=3

These notations indicate the perfor-

mance level of SDRAM (number of

clock pulses for CAS wait); the smaller

the value, the faster the response.

d. Functions of the Major Parts

The major parts of the main controller PCB have the following functions:

d-1 CPU (IC1010)

It is Canon's proprietary CPU, and holds a CPU core, network interface,

DMA controller, PCI interface, ROM/RAM interface, and the like.

d-2 SDRAM (J1003/J1004)

It is used as the main memory, serving to temporarily store all image data

and program-related data.

As many as two SDRAM DIMM may be installed, and these DIMMs may

be of different capacities. The type of an installed DIMM is automatically

identified by obtaining the SPD ROM information from the I2C bus.

The total capacity of the SDRAM DIMMs must be 256 MB max.; if only

one DIMM is used, it must be installed to J1003.

The SDRAM DIMMs must comply with the following specifications:

• PC100-compatible

• CL=2 or CL=3 (if mixed, operates as CL=3)

• Unbuffered type

• 3.3V-compatible

• SDRAM Chip on DIMM

16 Mbit ×4, ×8, ×16 type

64 Mbit ×4, ×8, ×16 type

128 Mbit ×4, ×8, ×16 type

d-3 ROM DIMM (J1007, J1008, J1009, J1010)

There are four slots for ROM DIMMs. The ROM DIMM data bus is a 32-

bit bus, and ROM DIMMs may be installed independently of one another.

(At least one ROM must be installed for booting.)

Each ROM DIMM must be one equipped with a flash ROM or a mask

ROM, and the maximum capacity of each must be 8 MB.

Normally, a DIMM equipped with a flash ROM is installed; the type

(including the capacity) is identified by reading the ROM information

(electronic signature).

The installed flash ROM DIMM must comply with the following

specifications:

• Access time of 90 nsec

• 3.3V-compatible

• Maximum capacity per DIMM of 8 MB

• Data bus width of 32 bits

• ×16 type flash ROM (mounted in DIMM)

2-10

Trainer's Reference



Uses of SST and RST

SST is used when smoothing print

images from the PC, while RST is

used when smoothing reader images

(text or text/photo mode).

d-4 IP ASIC (Musigny; IC1005)

The IP ASIC is an image processing ASIC used for both input images from

the laser unit and output images to the printer unit.

It is connected to the reader unit by DDI-S and to the printer unit by DDI-

P, each connected to the scanner interface and the printer interface,

respectively.

Of the DDI-S and DDI-P signals, those related to communication are not

sent to the IP ASIC; they are directly sent to the CPU, with the remaining

signals sent to the IP PASIC.

The following are the functions that relate to reader input images:

1. Enlargement/reduction in main scanning direction

ratio settings between 6.25% and 819,200%

2. Enlargement/reduction in sub scanning direction

reduction to 1/2, 1/4, 1/8

3. Edge emphasis

filter size of 7×7; 16 types of filter coefficient

4. Binary processing

TBIC, dither (200-line, 7-value), screen

processing, simple binary (including notch processing)

5. Editing

blanking, framing, negative/positive reversal, slant, mirror,

fold, repeat

The following are the functions that relate to printer output images:

6. Binary density conversion

density conversion of binary images

7. Binary enlargement/reduction

SST, RST, WPD, toner save

8. Thickening

thickens lines or characters when generating a print image

Other functions include the following:

9. PG generation

generation of reader PG and printer PG

d-5 I/O Chip (Spinoa; IC1006)

The I/O chip (Spinoa) is an ASIC that handles inputs to and outputs from

the CPU, and also has the following:

1. PCI bus controller

2. External bus bridge

3. E-IDE HDD controller

4. RTC controller

2-11

Trainer's Reference



5. Black-and-white LCD controller

It has a built-in LCD controller for a 1/4 VGA (320×240), 640×240,

VGA (640×480) black-and-white binary LCD as well as a RAM for

the LCD controller.

6. IEE-2284 controller

7. GPI0

8. Interrupter Controller

It has a built-in external input interrupt controller, functioning to

coordinate multiple external interruptions and internal interruptions; it

also can mask individual interrupt factors and read the states of

interrupt factors.

d-6 PCI Arbiter (PANDA; IC1009)

It is an ASIC that can arbitrate one bus master of the PCI bus.

d-7 PM-22 (IC1011, IC1016)

PM-22 is a CODEC LSI from Pixel Magic used for image processing

(compression, expansion, and rotation); two of them are used.

PM-22 and the CPU are connected with a dedicated PN-22 bus interface,

and image data is exchanged with the SDRAM.

Its major functions include the following: compression/expansion of

binary images (for electronic sorting), rotation of images, and conversion

of resolution. A total of four 256-Kbit SRAMs (two for each PM-22 work

area) are mounted on the main controller PCB.

d-8 RTC

It is an RTC (real-time clock) used to keep track of time; it is RTC-4574SA

from SEIKO Epson (accuracy of 30 sec or less per month).

It also has an alarm function, capable of generating an interrupt at a

specific time.

It will continue to keep track of time in the absence of AC power by

resorting to the primary battery. If the voltage of the primary battery drops,

bits from the register are used to detect a drop in voltage.

d-9 SRAM (IC1002)

The SRAM is 4-Mbit (512 kB) in size, and is used to retain the various

parameters when the power is removed by resorting to the primary battery.

d-10 Hard Disk

It is a 6.4-GB, 3.5-inch hard disk with an E-IDE interface; it allows the use

of PIO, DMA, and Ultra DMA/33 access modes.

The hard disk retains the system software and the image data stored in a

mail box when the power is removed.

2-12

Trainer's Reference



d-11 OSC

The following clock generators are found on the main controller PCB:

1. IC1014

90 MHz: system clock

30 MHz: PCI clock

24 MHz: I/O-chip IEEE-1284 core clock

2. X1003

50 MHz: IP ASCI clock

d-12 User Interface

It is used for the LCD panel signals and the input/output signals (serial

communication) between the CPU and the control panel. The LCD panel

signals are sent to the I/O chip, while the serial communication signals are

sent to the CPU.

The LCD drive signals are sent from the I/O chip to the black-and-white

LCD.

The LCD panel is equipped with a backlight; it remains off unless the

machine is in standby state. The LCD controller stops the drive to the LCD

to turn off LCD indication; the controller serves to monitor only those

keys requiring attention.

d-13 IPC

The IPC is a serial communication controller built to the microprocessor,

and serves as an interface connecting to a copy data controller.

d-14 Primary Battery

It is a lithium battery used to back up SRAMs and RTCs.

It is designed to back up an SRAM or an RTC for at least 10 years,

including its shelf period (in standby, it consumes about 10 µA).

It does not require control by software, automatically switching to backup

mode when power drops.

The counter stop bit of the RTC may be checked at power-on to detect

exhaustion.

d-15 IEEE-1284 (Peripheral)

It is the interface to the host PC; when the machine is used as a PDL

printer, it can serve to receive PDL data. It is also used when updating the

system program stored on the hard disk.

The interface is the interface of the CPU so that print data may be received

even in soft sleep mode.

2-13

Trainer's Reference



d-16 Reset

It is an IC for generating reset signals. The reset circuit has power supply

monitor ICs belonging to three channels, and two types of reset signals are

generated (all-night reset signal or non-all-night reset signal).

(1) All-Night Reset

IC1026 monitors the +3.3R power supply for generation of the all-

night reset signal.

When the all-night reset signal is generated, the non-all-night reset

signal is also generated.

The +3.3V all-night reset signal is used to reset all-night devices (e.g.,

CPU). When an abnormal drop is detected in the +3.3-V all-night

power supply, the +3.3-V non-all-night devices and +5-V power

supply monitor IC (IC1058) will be reset, imposing a hardware reset

on all devices under the control of the main controller PCB.

The +3.3-V all-night reset signal is 100 msec in length.

(2) Non-All-Night Reset

IC1060 is used to monitor +3.3-V power supply system and, at the

same time, IC1058 is used to monitor the +5-V power supply system; if

the reset signal from ether IC falls short of the reference potential, a

non-all-night reset signal will be generated.

In response, a hardware reset is imposed on the +3.3-V non-all-night

devices and +5-V devices.

The non-all-night reset signal is also sent to the external interrupt

terminal of the CPU, enabling detection of the non-all-night reset

signal during normal operation. (The non-all-night reset signal has a

minimum pulse width of 100 msec, enabling detection as part of

normal detection of an interrupt. Interrupt processing is masked in

advance of removing the non-all-night power supply.)

d-17 LED

The following five LEDs are mounted to the main controller PCB:

LED1001 and LED1002 are connected to the general-purpose output port

of the CPU (used for scanner and printer), and they are designed to flash at

specific intervals when the machine starts up.

LED1003, LED1004, and LED1005 turn on as long as power is being

supplied.

LED location Turned on by

LED1001 SSACNST (scanner start signal)

LED1002 PPRTST (printer start signal)

LED1003 +3.3-V power supply (non all-night)

LED1004 +3.3-R power supply (all-night)

LED1005 +5-V power supply

2-14

Trainer's Reference



d-18 DIP SW (SW1002)

It is used for factory inspection, and all its bits must be at OFF.

d-19 Serial Port Interface (J1006)

It is a serial port connected to the CPU and used when obtaining internal

processing log data of the main controller PCB.

The signals at the connector are 3.3-V signals of the CPU, and require a

service tool (RS232C PCB) for level conversion if connection to an RS-

232C port (e.g., of a PC) is needed.

d-20 Power Supply Interface

The main controller PCB operates using either of three types of power

supplies: +3.3-V all-night, +3.3-V non-all-night, and +5-V non-all-night.

The +3.3-/+5-V non-all-night power supply is controlled by the main

controller itself.

d-21 Font ROM

The font ROM is a 16-Mbit mask ROM containing the following:

• 12-dot font for display

• font for report printing (not for PDL print)

• dictionary for kanji conversion

d-22 DC-DC Converter (IC1082)

The DC-DC converter generates +5R (all-night) from +3.3R (all-night);

the +5R power supply is used to drive the buffer for IEEE-1284 inputs/

outputs.

The specifications of the DC-DC converter are as follows:

Input voltage: 3.0 to 3.6 V

Output voltage: 4.8 to 5.2 V

Output current: 0 to 120 mA

2-15

Trainer's Reference


Image Processing by the Main Controller

Digital image processing by the main controller is performed as follows:

1. Outline

The main controller PCB uses its IC and the hard disk to perform digital image

processing.

a. IP-ASIC

Performs image processing of image data sent from the reader unit.

Performs image processing of image data sent to the printer unit.

b. PUC

Performs memory control of image data.

c. PM-22

Performs compression, expansion, rotation, and enlargement/reduction of

memory images.

d. I/O Chip

Performs image data control between CPU and image server.

e. SDRAM

Retains image data temporarily during image processing.

f. Hard Disk (image server)

Retains image data temporarily during image processing.

Retains image data using the Box function.

2-16

Trainer's Reference



Figure 2-104

8

Reader unit

Enlargement/reduction(main scanning direction)

Edit processing

Density conversion (LUT)

Image memorycontrol

8

8

8

8

Edge emphasis

1

SDRAM

I/O control HDD

Image server

2

Smoothing

Copy (Scanning Data)

2

1

Binary-binary densityconversion

Printer unit

Printer PG

1

8

Reader PG

8

Main controller unit

Image data after shading

Binary processing (random error diffusion; text, text/photo, print photo)

Binary processing (dither screen; film photo)

Compression/expansion,rotation, enlargement/reduction

Density conversion (LUT)

Density adjustment (F-value conversion)

Brightness/density conversion(LOG conversion)

Density correction (¡ conversion)

2-51

Trainer's Reference



Image Processing by the Main Controller for Print (PDL) Data

Image memorycontrol

SDRAM

I/O control HDD

Image server

4

Thickening

4

Printer unit

Printer PG

Main controller unit

Smoothing

Print (PDL) Data1

NetworkBi-Centronics

RIP1

2-16a

2-17

Trainer's Reference



2. Image Processing of Input Images

The input image data from the reader unit is processed as follows:

a. Image Data from the Reader Unit

The image signals from the reader unit are 8-bit, 256-gradation brightness

image signals processed for shading correction.

The signals are sent using two signal lines (for odd-number and even-

number pixels).

b. Enlargement/Reduction (main scanning direction; IP-ASIC)

As in existing machines.

c. Edge Emphasis (IP-ASIC)

Edge emphasis is executed to enhance the images while preventing moire

and limiting the sharpness of images as much as possible in text, text/

photo, print photo, and film photo modes (which otherwise serve to de-

emphasize edges).

Filter size: 7×7

Filter coefficient: 16 types

d. Edit Function 1 (IP-ASIC)

Editing includes the following: blanking/framing, negative/positive

reversal, slant, mirror image, fold, and repeat.

e. Density Conversion (LUT; IP-ASIC)

Brightness image signals are converted into density image signals, and

processing is executed so that an output density curve appropriate to each

mode may be obtained.

e-1 LGO Conversion

A LOG conversion table is used to convert a brightness signal (whose data

is based on reflected light) into a density image signal expressing toner

density data.

e-2 Density Adjustment (F value conversion)

Density is adjusted using an F-value table to suit the setting of the Copy

Density key on the control panel.

However, this processing is not executed in memory copy mode.

e-3 Density Correction (gamma conversion)

The gamma conversion table of each mode is used for density correction

in text, text/photo, print photo, and film photo mode.

2-18

Trainer's Reference



f. Binary Processing (random error diffusion: R-ED; IP-ASIC)

Using a random error diffusion method (R-ED), the 8-bit image density

signal of each mode (text, text;photo, film print) is converted into a 1-bit

image density signal (binary).

f-1 Step 1

The 0-255 gradation level is converted into a 16-operation level.

For an image input signal, a random number is added using 8 as the slice

value.

The 0-255 8-bit signal is divided by 17 to convert it into a 0-15 4-bit

signal.

f-2 Step 2

The 0-15 4-bit signal from the error diffusion method is subjected to

binary processing by converting it to a 0-1 1-bit signal.

The slice value is controlled for error diffusion based on the input value,

average density, and patterns resulting from binary processing.

g. Binary Processing (dither screen method; IP-ASIC)

A dither screen method is used to convert an 8-bit image density signal of

print photo mode into a 1-bit image density signal (binary).

Although a binary image, 144 gradations are possible owing to 12×12-

pixel dither screen processing.

EX: GP605 (256 gradations by 16×16-pixel dither screen processing)

3. Image Memory Control

The binary image data is controlled as follows:

a. Compression/Expansion, Rotation, and Enlargement/Reduction

(CPU-PM-22)

The functions include compression/expansion of binary images (for

electronic sorting), rotation of images, and conversion of resolution.

b. SDRAM (CPU-SDRAM)

The image data used for image memory control are stored temporarily in

memory.

c. Hard Disk (CPU-I/O; chip-HDD)

Image data is retained using the Box function, with the hard disk serving

as an image server.

2-19

Trainer's Reference



4. Image Processing of Output Images

The output images sent to the printer unit are processed as follows:

a. Smoothing (IP-ASIC)

In the case of text or text/photo mode, 600 × 600-dpi input images are

subjected to smoothing for conversion into 1200 (equivalent) 600-dpi

images.

In smoothing, the image data is checked against 7×7-pixel pattern

matrixes (288 templates), by which each pixel in question is processed.

Notch processing is also executed as part of smoothing for patterns unique

to scanned images.

b. Thickening (IP-ASIC)

Fine lines are thickened to improve reproduction.

Scanned images are subjected to thickening by binary-binary density

conversion (binary image data is corrected after conversion into 256-value

data and then connected back to binary data once again).

PDL output images are processed for thickening by adding a 1/2 pixel

(1200 dpi) above each horizontal line and a 1/2 pixel (1200 dpi) to the

right of each vertical line.

2-20

Trainer's Reference


Controlling the Power Supply for the Main Controller

Figure 2-105

The machine's power supply is controlled as follows:

1. Distribution of Power

The following diagram shows how the machine distributes power.

Lea-kagebreaker

ELC

B

Linenoisefilter

LF1

ACdriverPCB

Drum heater (H3)

Cassette heater (H4)Main relay (RLY1)

Environmentswitch(SW3)

DC controller PCB


Controller block

(SW1)

Heaterswitch(SW4)

Drumtempe-raturecontrolPCB

ACinput

3.3VA/5V12VU/24VU

24VU

3.3VA13.3VA23.3VB/5V

Harddisk

Fixing/feedingPCB

Inver-terPCB

Control Card IV (accessory)

24V

24V

U 5V

24V

3.3V

A24

V

24V

U

5V

LaserdriverPCB

Laserscannermotor

24VU3

Finisher(accessory)

24VA

ADF 24VU

Paper deck(accessory)

24VU2ASSIST(accessory)

5V24VU2

5V12VU

MotordriverPCB

Mainmotor(M2)

Drummotor(M1)

24V

5V24

V

24V

U1

5V5V

Main heater(H1)

Thermalswitch(TP1)

Sub heater (H2)

120V Not used230V Accessory

DuplexingdriverPCB

ControlpanelCPU PCB

Control panel switch

Accessoriespowersupply PCB

Deck heater (H5)

Mirror heater (H7)

Lens heater (H6)

DC powersupply PCB

Anti-rush currentPCB

Manual feeddoor switch(MSW)

Front coverswitch(SW2)

Main powerswitch

Clutchsolenoid

24V

5V

BDPCB

24V

5V 12V

InverterPCB

CCD/APPCB

A12

V

C

A

B

B

Fuse PCB

12V

C

PotentialcontrollerPCB

High-voltagePCB

Note: Thick lines indicate AC lines.

2-21

Trainer's Reference



2. State of Power

a. Power Supply Mode

The machine may be in any of the following five modes for its various

power supplies: +3.3-V all-night (3.3 VB), +3.3-V non-all-night (3.3 VA),

+5-V non-all-night (5V), and +24-V:

In both hard sleep and power-off modes, the power supply is not

controlled using software (as by the power supply control port).

In hard sleep mode, the power supply is controlled by the KILL 3.3 (SPO

[2]) port of the CPU.

3. Standby Mode (normal operation)

In standby mode, the machine may be operating or may be ready to operate,

and almost all loads are supplied with power. Not only the main controller

PCB, but also the reader unit, printer unit, and control panel are all ready for

communication/control.

b. Controlling the Power Supply

The main controller PCB controls power supply control mechanisms

except for the power-off mode initiated by turning off the main power

switch.

In each mode, the power supply is controlled using the power supply

control ports PWR1 (1-pin) and PWR2 (2-pin) of the power supply control

connector J1021 on the main controller PCB as follows:

Mode +3.3-V all-night +3.3-V non-all night +5-V non-all night+24-V

Standby Y Y Y Y

Low power Y Y Y N

Soft sleep Y N N N

Hard sleep N N N N

Power supply off N N N N

Mode PWR1 PWR2 Remarks

Standby H(x) H Set at reset

Low power H L

Soft sleep L L

Hard sleep X X KILL3.3=L

Power off X X

(for X, no software control)

2-22

Trainer's Reference



4. Low Power Mode

In low-power mode, the +24-V power supply remains off. The power con-

sumption of the reader unit and the printer unit are reduced to save power used

by the machine.

a. Shift from Standby Mode (to low power mode)

The shift from standby mode to low-power mode is executed by the

software of the CPU on the main controller PCB (PWR1=H, PWR2=L).

The shift from standby mode to low-power mode is initiated for the

following:

• Low-power mode is selected on the control panel.

• Standby mode continues in excess of a specific time (may be changed

in user mode).

• A shift is specified using a remote user interface (command) from the

parallel port (IEEE-1284) or the network.

b. Return to Standby Mode (from low-power mode)

A shift from low-power mode to standby mode is initiated by the software

of the CPU on the main controller PCB (PWR2=H, PWR1=H).

A shift from low-power mode to standby mode is initiated for the

following:

• The power switch (soft switch) on the control panel is turned on.

• PDL data is received from the parallel port (IEEE-1284) or the

network.

5. Soft Sleep Mode

In soft sleep mode, only the +3.3-V all-night (3.3 VB) power supply remains

on.

The CPU on the main controller PCB is in wait for an interrupt; it turns off the

program, thus saving on power.

This mode is used only in an MFP configuration, in which a network print

option or a PDL print option is installed.

a. Shift from Standby Mode (to soft sleep mode)

A shift from standby mode to soft sleep mode is executed by the software

of the CPU on the main controller PCB (PWR1=L, PWR2=L).

A shift from standby mode to soft sleep mode is initiated for the following:

• The power switch (soft switch) on the control panel is turned off.


in user mode).

• A shift is specified using the remote user interface (command) from the

parallel port (IEEE-1284) to the network.

2-23

Trainer's Reference



b. Shift from Low-Power Mode (to soft sleep)

A shift from low-power mode to soft sleep mode is executed by the

software of the CPU on the main controller PCB (PWR1=L, PWR2=L).

A shift from standby mode to soft sleep mode is executed for the

following:


• Standby mode continues in excess of a specific period of time (may be

changed in user mode).



c. Return to Standby Mode (from soft sleep)

A shift from soft sleep mode to standby mode is executed by the software

of the CPU on the main controller PCB (PWR1=H, PWR2=H).

A shift from soft sleep mode to standby mode is executed for the

following:

• The power supply switch (soft switch) on the control panel is turned

on.

• PDL data is received from the parallel port (IEEE-1284) to the

network.

6. Hard Sleep Mode

In hard sleep mode, the CPU itself turns off, leaving a minimum number of

logic circuits on the main controller PCB powered.

This mode is used only in a configuration in which the network print option or

the PDl print option is not installed.

a. Shift from Standby Mode (to hard sleep)

A shift from standby mode to hard sleep mode is executed by the software

(KILL3.3=L) of the CPU on the main controller PCB; the +3.3-V all-night

(3.3 VB) power supply is cut at the start of the main controller PCB,

thereby cutting off the power to almost all elements of the PCB including

the CPU.

A shift from standby mode to hard sleep mode is executed for the

following:



in user mode).



2-24

Trainer's Reference



b. Shift from Low-Power Mode (to hard sleep)

A shift from low-power mode to hard sleep mode is executed by the

software (KILL3.3=L) of the CPU on the main controller PCB; the +3.3V

all-night (3.3 VB) power supply is cut off at the start of the main controller

PC, cutting off the power to almost all elements of the PCB including the

PCU.

A shift from low-power mode to hard sleep mode is initiated for the

following:


• Standby mode continues for a specific period of time (may be changed

in user mode).



c. Return to Standby Mode (from hard sleep)

In hard sleep mode, auto return to standby by means of an external event is

not possible; standby mode may be resumed by turning off/on the power

supply switch (soft switch) on the control panel or the main power switch.

The operation upon return is exactly the same as the operation at power-

on.

7. Power-Off Mode

In this mode, the main power switch remains off. To return from power off-

mode, the main power switch must be turned on (at which time standby mode

will start automatically).

2-25

Trainer's Reference


Original Exposure System

1. Turning On and Off the Scanning Lamp

a. Turning On and Off

The machine's scanning lamp is a xenon lamp.

The scanning lamp is turned on/off in response to the drive signal

(LAMP_ON) from the CPU of the reader controller PCB. When the signal

is generated, the inverter PCB uses the activation control circuit to

generate a high-frequency voltage using the drive voltage (+24 V) from

the reader controller PCB to control the activation of the xenon lamp.

b. Detecting an Error

If an error occurs (e.g., output release, short-circuit, leakage) in the

inverter circuit, the error signal (INV_ERR*) is sent to the controller

circuit. An error relating to the lamp (low intensity, activation failure) is

identified as an activation error when the lamp is first turned on.

Figure 2-301

Inverter PCB

Xenon lampActivationcontrolcircuit

J5101 J5007+24V


1

3

4

2

5

3

2

4

LAMP_ON

INV_ERRLA2

CPU

Xenon Lamp

When a high-frequency voltage is

applied across terminals of a xenon

lamp, electric discharge occurs within

the xenon gas, causing the fluorescent

material inside the lamp to emit light.

2-26

Trainer's Reference


The machine's original size detection

combines reflection type sensors with

CCDs, so that it requires fewer

sensors compared with the existing

machines (ultimately resulting in lower

cost of production).

Identifying the Size

1. Outline

The machine identifies the size of an original based on the measurements

taken of the intensity at specific points using reflection type sensors and CCD:

Main scanning direction: CCD (4 points for AB-configuration)

Sub scanning direction: reflecting photosensor (1 location)

2. Points of Detection

For main scanning direction, the No. 1 mirror mount is moved to the follow-

ing CCD original detection points; the intensity at each location is measured

to identify the size of an original. For sub scanning direction, on the other

hand, original sensors (fixed in position) are used to identify the size of an

original.

3. Mechanism of Detection

The machine identifies the size of an original in the following two steps:

1. Detecting External Light (main scanning direction only)

While keeping the scanning lamp off, the CCD level at each point of

detection is measured in main scanning direction. The absence of an

original is identified if external light is detected, thereby enabling the

identification of the width of an original.

2. Detecting the Output Level of the Sensors

The scanning lamp is turned on, and the CCD level of each point of

detection in main scanning direction is measured. The LEDs of the

reflecting type photosensors in sub scanning direction are turned on to

measure the outputs of the sensors.

The size of the original is identified based on specific combinations of the

states of the sensors. For specific operations, see the next page.

Figure 2-302

Original sensor

Point of originaldetection 3Point of originaldetection 4

Point of originaldetection 1Point of originaldetection 2

B5

A4

B5R

A4R

B4

A3

CCD point of original detection

2-27

Trainer's Reference



a. Book Mode (1 original; with ADF open)

Original (A4R)

Point of original detection

Copyboard glass

Xenon lampOriginal sensor

Reader unit

Copyboard coverPoint of original detection 1

Point of original detection 2



(external light)

(external light)

1. The machine is in wait sate.

No. 1 mirror mount: at home position

Xenon lamp: off

Original sensor: invalid

2. The copyboard cover is opened.

A check is made for external light in main

scanning direction.

No. 1 mirror mount: moves to point of detection

Xenon lamp: off


3. An original is placed.

The external light will be blocked if there is an

original; therefore, detection of external light is

identified as indicating the absence of an original.

In the case of the example cited, B5, B4, A4, and

A3 are excluded at this point.

4. The Start key is pressed.

The original size detection is started in response

to a press on the Start key. For main scanning di-

rection, the xenon lamp is turned on, and a check

is made for reflected light using the CCD (4

points); for sub scanning direction, the original

sensors become ready for detection. The absence

of reflected light is identified as the absence of an

original.

The size of the original is identified based on spe-

cific combinations of the results of detection.

Figure 2-303

AB-Configuration

Original size

Original sensor

CCD point of detection

A3

B4

A4R

A4

B5

B5R

None

1 2 3 4

:Reflection detected. :Reflection not detected.

2-28

Trainer's Reference



Original (A4R)

Point of detection

Point of detection 1Point of detection 2Point of detection 3Point of detection 4

Copyboardglass

Xenon lampOriginal sensor

30˚

Reader unit

Copyboard cover

(external light)

(external light)

b. Book Mode (1 original; with ADF closed)1. The machine is in wait state.

No. 1 mirror mount: at home position

Xenon lamp: off


2. The copyboard cover is opened.

A check is made for external light in main scan-

ning direction.

No. 1 mirror mount: to point of detection

Xenon lamp: off


3. An original is placed.

The external light will be blocked if there is an

original; therefore, detection of external light is

identified as the absence of an original.

In the case of the example cited, B5, B4, A4, and

A3 are excluded at this point.

4. The copyboard cover is closed.

When the copyboard cover is brought down to

30°, the copyboard cover sensor identifies the

"closed" state, starting detection of the size of an

original.

For main scanning direction, the xenon lamp is

turned on, and the reflected lamp is checked by

the CCD (4 points); for sub scanning direction,

the original sensor becomes ready for detection.

5. The copyboard cover is closed fully.

The changes in the output level of each sensor is

monitored until the copyboard cover is fully

closed. The absence of a change in the level is

identified as the absence of an original.

The size of an original is identified based on the

changes in the level at five points. (See the table.)

6. The machine changes into wait state (waiting for

a press on the Start key).

The No. 1 mirror moves to home position, and

waits for a press on the Start key.

2-29

Trainer's Reference



Figure 2-304

AB-Configuration

Original size

Original sensor

CCD point of detection

A3

B4

A4R

A4

B5

B5R

None

1 2 3 4

:Change absent. :Change present.

2-30

Trainer's Reference


Image Processing in the Reader Unit

1. Functions of the Image Processing Mechanism

The image processing mechanism of the reader unit has the following main

functions:

The following block diagram shows the relationship among the functions re-

lated to image processing.

Figure 2-401

The functions of the PCBs related to image processing are as follows:

Item Description

CCD (image sensor) Number of lines: 1

Number of pixels: 7,500

Size of pixel: 4.7 × 4.7 µm

Shading correction Shading adjustment: in service mode

Shading correction: for each copy

Auto density adjustment (AE) executed for each line in main scanning

direction

CCD/AP PCB

Reader control PCBCCD

A/Dconver-sion

Shading processing

Auto density correction (AE)

Analogimageprocessing

Analog image processing block

Controller unit

Digital image processing

PCB Description

CCD/AP PCB Drives the CCD, performs analog image process

ing, performs A/D conversion

Reader controller PCB Performs shading correction, performs auto

density adjustment (AE)

2-31

Trainer's Reference



2. Analog Image Processing

Analog image processing is performed by the CCD/AP PCB, and consists in

the following:

1. CCD drive

2. CCD output gain correction, offset correction

3. CCD output A/D conversion

The following block diagram shows functions related to analog image pro-

cessing.

Figure 2-402

CCD

Analogsignal processing block

• Gain correction• Offset correction

AP-LD

A/D conversion

A/Dconversion

Analogimage signal

Digital image signal

CCD/AP PCB

CCDdriver control

ReadercontrollerPCB

8

J6002

J6001

J5003

J5002

Even-number pixelOdd-number pixel

Even-numberpixel

Odd-number pixel Digital image signal

8

CCDcontrol signal

3489

1017

1221:

2426:

2931:

3436:

39

3489

1017

1221:

2426:

2931:

3436:

39

14

A24VA5V

14

Gain/offset correction data

2-32

Trainer's Reference



3. Digital Image Processing

a. Functions

Digital image processing is performed by the reader controller PCB, and

consists in the following:

1. Shading correction

2. Auto density adjustment(AE)

The following block diagram shows the functions related to digital image

processing:

Figure 2-404

b. Edge Gain Correction

The intensity at the edges of the scanning lamp is relatively lower than the

intensity at the middle. During shading, the edge gain correction plate

(gray) mounted at the edge of the read position is read in advance, and a

gain is computed so that the intensity will be a specific value for use to

correct the data representing the edges, affected by differences in

intensity.

Figure 2-403

Gain/offset correction data

EEP-ROM

SRAM

CPU

Shading correction

Auto density correction (AE)

Even-number pixel digital image signal

CCD/APPCB


8

Odd-number pixel digital image signal

8

Even-number pixel

8

Odd-number pixel

8

Target value

J6002 J5003

J5004

3489

101712

21:

2426:

2931:

3436:

39

3489

101712

21:

2426:

2931:

3436:

39

Digital image signal

A2123252729313335

B2123252729313335

pixel 0

pixel 7500

Main scanning direction

Edge gains correction plate

Standard white plate (for shading)

Copyboard glass

pixel 0 pixel 7500 pixel 0 pixel 7500

2-33

Trainer's Reference


Laser Exposure System

1. Construction of the Laser Exposure System

The machine's laser exposure system consists of the following components.

A laser scan is made by a small-diameter 12-facet polygon mirror (designed for high-speed, low-power, low noise),

a wide-angle lens, and 1-beam laser.

Unlike existing machines, the machine's laser beam is directed to areas of an image on the photosensitive drum that

represent white areas (charged to a positive potential), thus forming a latent static image.

Figure 2-501

2. Comparison with the GP605 (laser exposure system)

12-facet polygon mirrorLaser unit

Collimator lens

Imaging lens 3Cylindrical lens

BD mirror

Laser mirror 2

Laser mirror 3

Laser mirror 4

Laser mirror 1

Photosensitive drum

BD PCB

Imaging lens 2

Imaging lens 1

Item Specifications

E82/72 GP605

Process speed 265 mm/sec 300 mm/sec

Laser beam 1 beam 2 beams

Polygon mirror circumcircle diameter 29 mm 65 mm

Polygon mirror facet 12 facets 8 facets

Polygon mirror revolution 31,000 rpm (approx.) 27,000 rpm (approx.)

Laser wave length 655 nm 680 nm

Laser rated output 35 mW 5 mW

Laser mirror 3 mirrors 1 mirror

2-34

Trainer's Reference



3. Construction of the Laser Exposure System

The laser driver circuit is used to drive the semiconductor laser using the laser

drive signal (LD) from the DC controller PCB, and its functions include the

following:

1. Turning on and off the laser.

2. Controlling the intensity of the laser. (APC control)

3. Controlling the intensity of the laser to suit the drum surface potential.

The following signals and devices are associated with the laser exposure

mechanism:

1. Laser Drive Signal

2. Laser Activation Signal for Sampling

It turns on the laser for sampling the intensity for activation (image expo-

sure) for each single scan.

3. Laser Activation Enable Signal

It goes '0' when the laser is ready to turn on after the Start key is pressed.

4. Laser Write Start Signal

It starts laser writing when paper reaches the laser write start sensor (PS28)

mounted in front of the registration roller.

5. Intensity Monitor

It monitors the intensity of the laser when it is turned on for sampling, and

feeds back an appropriate value to the laser drive circuit.

6. Laser Output Control Signal

It controls the output so that the feedback value and the reference value

from the EEPROM are identical.

7. Laser Intensity Ready Signal

It goes '1' when the laser intensity is as specified. If the laser intensity is not

as specified when it is turned on for sampling, the condition will be identi-

fied as an error.

8. Laser Intensity Reference Signal

It is the laser activation reference value determined by the potential control

signal from the EEPROM.

The machine adjusts its laser power

automatically.

2-35

Trainer's Reference


Figure 2-502

J117

J113

J121

LD(+) [1]

LHTRD

LD-DT [8]

LD-EN [3]

LSH [2]

LD(-) [1]

GND

GND

LTH

L-RDY [7]

LWRPD [4]

Laser driver PCB

DC controller PCB

J2502[6]

J2501 J2503

Laser unit

Laser

Laser heater (H)

Laser thermistor (TH)

Intensity monitor [5]

Laser drive circuit

EEPROM

3

2

1

B5

20

19

18

16

15

14

12

11

10

8

7

3

2

1

17

1

2

3

5

6

7

9

10

11

13

14

18

19

20

4

43

2

1

2

1

GND

GND

GND

GND

GND

5V

24V

3.3V

Laser write start sensor (PS28)


2-36

Trainer's Reference


Image Formation

1. Construction of the Image Formation System

The construction of the image formation system is as follows, more or less

identical to that of the NP6251.

2. Major Changes from the NP6251

*:Using digital processing, the surface

layer and photosensitive layer most

appropriate to laser exposure are

used.

**:The extra-strength polishing pad is

intended exclusively for the brown

wire. Do not use it for gold-plated

wires.

Developing assembly

Dust collecting roller

Pre-transfer charging assembly

Transfer guideTransfer charging assembly

Separation charging assembly

Cleaner unit

Pre-exposure

Primary charging assembly

Potential sensor

Item Description Remarks

Photosensitive drum Digital* New drum

Charging wire Brown wire (all) Highly durable

Wire cleaner pad Strengthened polishing type** Primary/transfer only

Potential control Printer control added

APC correction APC correction added

Density adjustment Density adjustment according to mode

Figure 2-601

2-37

Trainer's Reference


Image Formation

3. Controlling the Potential

a. Outline

The following functions are associated with potential control:

• Controlling the potential for the copier/printer.

• Correcting APC (auto power control)

• Controlling primary current (VD)

• Controlling laser output (VL)

• Determining DC bias (DC)

Figure 2-602

Primary charging wire

Potential sensor

Laser light

Developing cylinder

DC

con

trol

ler

PC

B

Lase

r dr

iver

PC

BH

igh-

volta

ge P

CB

Pot

entia

l con

trol

P

CB

Control signal

Control signal

Det

ectio

n si

gnal

J103 J3

1234B1

B2B3B4

0V

24V

POT-DTPOT-ON

[1][2]

Correction of developing bias (DC)

Correction of laser output

Correction of primary current value

[1] Drum surface potential measurement.

[2] When '1', the potential sensor turns on.

2-38

Trainer's Reference


b. Controlling the Potential for the Copier/Printer

The machine's potential control consists in printer potential control and

copier potential control. In printer potential control, the target potential is

set to VD = 420 V, ensuring the reproduction of line width. In copier

potential control, on the other hand, the target potential is set to VD = 370

V, limiting the consumption of toner.

The following is the basic sequence of operations associated with potential

control:

10-, 60-min after main power

switch ON

To accommodate changes in the

sensitivity and charging effi-

ciency caused by changes in the

drum temperature.

At the start of the first job; 10 and

60 min after the main power

switch is turned on.

off: 0 sec

reduced mode: about 5 sec

standard mode: about 10 sec

off/reduce mode/standard mode

OFF

Item

Purpose

Operating

condition

Operating

length

Service

mode

Default

Warm-up

To control the potential for

copier/printer mode.

To set ratings related to

copier/printer mode.

The fixing temperature when

the main power switch is

turned on is 150° or less.

About 10 sec during warm-up

May be enabled/disabled.

on (potential control of both

copier and printer modes)

Image Formation

2-39

Trainer's Reference


c. Controlling the Potential (warm-up)

d. Potential Control 10 Min and 60 Min from Power-On (main power

switch)

The following three types are used according to the settings selected in

service mode:

1. OFF (default), in which no potential control is performed.

2. Reduced mode (selected in service mode), in which the period is

reduced by making an estimate of the potential used in the other

control period after potential control.

3. Standard mode, in which two types of potential control (copier and

printer) are performed consecutively.

Figure 2-603

WMUPRWMUP STBY

Fixing assembly temperature 195˚C 200˚C

Drum motor (M1)

Primary charging

Laser

Potential sensor

Printer potential control [1] Copier potential control [2]

VD VD VD VL1 VL2VL1 VD VD VD VL1 VL2VL1

[1] Copier potential control (measures the potential; eight times for VD, eight times for VL1, once for VL2).

[2] Printer potential control (measures the potential; 8 items for VD, 8 items for VL1, and once for VL2).

Image Formation

2-40

Trainer's Reference


e. Reduced Mode (selected in service mode)

One type of potential control is performed while making an estimate of the

potential used in the other control period.

During the warm-up period after power-on, the primary current, laser

output, and developing bias DC value are determined for copier and

printer modes, and ratios are stored.

When the Start key is pressed after the power is first turned on, both copier

potential control and printer potential control are executed; when the Start

key is pressed for a second time, however, only one of two is executed

(copier or printer potential control), and an estimate is computed for the

other using the data obtained when control (for both) was first executed.

The following is the sequence of operations used in reduction mode:

Image Formation

Figure 2-604

Figure 2-605

f. Standard Mode (selected in service mode)

Potential control for copier and printer modes are performed

consecutively.

Copier potential control

Printer potential control

Fixing assembly temperature: 195˚C(end of fixing assembly warm-up)

Control panel power switch ON

Start key ON Potential control Potential control

Start key ON

10 sec to less than 60 min 60 min and later

Potential control for copier and printer during first job

Potential control for copier and printer for first job

Sets control ratings for copier and printer

Potential control for copier

Potential control for printer



Start key ON Potential control Potential control

Start key ON

10 min to less than 60 min 60 min and later

Estimates other control value based on potential control for copier and printer

Estimates other control value based on potential control for copier and printer

2-41

Trainer's Reference


Image Formation

g. APC Correction

The VL potential changes becuase of changes in the laser output over time

and in continuous printing. The laser output control value is corrected to

maintain the VL potential to a specific value.

The following types of correction are performed for the laser output

control value:

[sheet-to-sheet APC control]

Purpose: The potential after a laser output is measured between sheets to

correct the laser output control value, thereby maintaining the

VL potential to a constant value without lowering productivity

during a continuous job.

Timing: It is executed between the first and second sheets one minute after

the start of a continuous printing job.

Potential measurement: The potential is subject to irregularities around the

drum; the drum is divided into eight peripheral areas, taking

measurements at least once in each area, and the average drum

potential of the eight measurements is computed. Using the

result, a correction value for the laser output is obtained. If

measurement is not possible (made difficult because

measurements must be taken between sheets), it is continued for

a further one minute.

Figure 2-606

[Initial Rotation APC Control]

Purpose: The drum potential is measured to correct the laser output control

value, thus correcting the changes in the VL potential of the laser

output caused by changes in temperature after a long time.

Timing: It is performed during initial rotation of the first job executed 60

min after the end of a job.

Potential measurement: The drum is divided into eight peripheral areas,

taking measurements at least once in each area, and the average

drum potential of the eight measurements is computed. Using the

result, a correction value for the laser output is obtained.

Potential control for copier

Potential control for printe

Main power switch ON



Start key ON


1 min later 1 min later

Continuous


2-42

Trainer's Reference


Image Formation

[Last Rotation APC Controller]

Purpose: If intermittent printing is repeated at short intervals, the absence

of potential control will change the VL potential of the laser out-

put because of changes in temperature. For correction, a correc-

tion value is obtained for laser output control used during last

rotation executed for the last job.

Potential measurement: The drum is divided into eight peripheral areas,

taking measurements at least once in each area, and the average

drum potential of the eight measurements is computed. Using the

result, a correction value for the laser output is obtained.

2-43

Trainer's Reference


Image Formation

h. Density Adjustment in Each Mode

In the following modes, the developing bias determined as a result of

potential control is corrected, and is used as the target value for each mode

for density adjustment.

1. Density Adjustment in Memory Print Mode

The copy density is lowered (made lighter) by lowering the developing

bias; however, too low a bias will make the image fuzzy, while too

high a density will make the image foggy.

In the uppermost and lowermost range of the developing bias, changes

in the developing bias and image processing (binary-binary

processing) are used when processing images for density.

Purpose: It is performed to obtain a degree of density suited to the

needs of the user.

Method of correction: The developing bias and image processing (bi-

nary density processing) are used according to the setting of

the F value. (For details, see the descriptions of image pro-

cessing by the main controller.)

2. Density Adjustment in Printer Mode

The print density is increased (made darker) by raising the developing

bias; however, too high a developing density will make the images

foggy. In the lowermost range of the developing bias, changes in the

developing bias and image processing (thickening) are used to process

images for density.

Purpose: It is performed to obtain a degree of density suited to the

needs of the user.

Method of correction: The developing bias and image processing

(thickening) are used to suit the setting of the F value. (For

details, set the descriptions of image processing by the main

controller PCB.)

F value Developing DC bias Shift Thickening Image density(V) (V)

1 203 48 No Darker2 190 35 No3 179 24 No4 167 12 No5 155 0 No6 138 -17 No7 122 -33 No8 105 -50 No9 105 -50 Yes Lighter

F value Developing DC bias Shift Image processing Image density(V) (V)

1 240 60 Yes Darker2 220 40 No3 180 0 No4 140 -40 No5 120 -60 Yes Lighter

2-44

Trainer's Reference


Pickup/Feed System

The machine's manual pickup

assembly uses the feed roller (not the

pickup roller) to pick up paper.

1. Manual Pickup

The presence/absence of paper on the manual feed tray is detected by the

manual feed paper sensor (PS23).

The manual forwading roller is operated by the drive from the main motor

coming through the pickup clutch (CL4). When the clutch is engaged, the

manual feed holding plate solenoid turns on to lift the manual feed holding

plate; as a result, the gear of the pickup roller receives the drive of the main

motor, causing the manual feed pickup roller to make a single rotation to

move the paper.

As the manual feed roller rotates, the paper is moved all the way to the regis-

tration roller.

Figure 2-701

M1

CL2

CL4

SL8

Reg

istr

atio

n ro

ller

clut

ch d

rive

sign

al

Man

ual f

eed

pick

up c

lutc

h dr

ive

sign

al

Mai

n m

otor

driv

e si

gnal

Man

ual f

eed

hold

ing

plat

e re

leas

ing

sole

noid

driv

e si

gnal

Manual feed forwading rollerRegistration roller

Feed roller

Separation roller

Manual feed holding plate

Tray

Sheets

DC controller PCB

2-45

Trainer's Reference


Pickup/Feed System

2. Double-Sided Print

a. Moving Paper to the Duplexing Reversal Unit

Figure 2-702

PS36

PS38

PS37

PS35PS4

PS46

Reversing flapper

Delivery flapperPS29

M14

SL8 SL5

Rev

ersi

ng fl

appe

r so

leno

id d

rive

sign

al

Del

iver

y as

sem

bly

stat

iona

ry ja

m d

etec

tion

sign

al

Del

iver

y fla

pper

sol

enoi

d dr

ive

sign

al

Inte

rnal

del

iver

y se

nsor

driv

e si

gnal

Cla

w ja

m d

etec

tion

sign

al

Rev

ersa

l det

ectio

n si

gnal

2

Reg

istr

atio

n de

tect

ion

sign

al

Rev

ersa

l mot

or d

rive

sign

al

DC controller PCB

2-46

Trainer's Reference


Pickup/Feed System

b. Re-Pickup

Figure 2-703

M18 M25

PS38

PS37 PS24

PS35PS29

PS30

PS46

Duplexing outlet roller

Duplexing feed right roller

Feeding large roller

PS31PS34

Duplexing feeding left rollerCurling roller

PS28

M14

SL8

M29

Rev

ersa

l fla

pper

sol

enoi

d dr

ive

sign

al

Rev

ersa

l det

ectio

n si

gnal

1

Rev

ersa

l mot

or d

rive

sign

al

Rev

ersa

l mot

or d

rive

sign

al 2

Dup

lexi

ng fe

ed le

ft m

otor

dr

ive

sign

al

Dup

lexi

ng re

gist

ratio

n si

gnal

Dup

lexi

ng p

icku

p se

nsor

Dup

lexi

ng fe

ed ri

ght m

otor

dr

ive

sign

al

Dup

lexi

ng d

ispl

aced

regi

stra

tion

dete

ctio

n si

gnal

Ver

tical

pat

h du

plex

ing

feed

m

otor

driv

e si

gnal

DC controller PCB

2-47

Trainer's Reference


Pickup/Feed System

c. Operations

The feed path for the first side of a double-sided print is configured when

the delivery flapper solenoid (SL5) turns off and the reversing flapper

solenoid (SL8) turns on, thereby shifting up the delivery flapper and the

reversing flapper.

When the first side has been printed and the leading edge of the paper

reaches the delivery assembly stationary jam sensor (PS48), the reversing

flapper solenoid turns on.

When the delivery assembly stationary jam sensor (PS48) has turned on

and the paper reaches a specific position, the reversal motor ((M14) starts

to rotate to move the paper to the duplexing reversal unit.

When the paper has reached the reversal sensor 2 and reaches a specific

location, the reversal motor stops rotation and the paper is kept in wait in

the reversal assembly.

When the reversal motor (M14) starts to rotate, this time in reverse, the

paper in the reversal assembly is moved toward the duplexing wait

position by the work of the duplexing feed left/right roller, which receives

drive from the duplexing feed left/right motor (M29/M18).

Paper is butted against the duplexing feed right roller so that it arches,

thereby being made free of the skew. Horizontal registration is executed

during a 100-msec stop period after the paper is made to arch.

Thereafter, the duplexing feed left/right motor (M29/M18) starts to rotate,

moving the paper to the duplexing wait position.

d. Through Path Operation

After fixing, the paper is moved to the reversal unit using the delivery

flapper and the reversing flapper; the paper is then moved to the duplexing

feed assembly, and this whole operation is called "through path"

operation.

The machine reorders images in its memory for printing, not necessarily

printing the originals in their initial order and, ultimately, reducing the

time paper is kept in wait and increasing the speed of double-sided

printing.

As many as two sheets of paper may simultaneously exist between the

registration sensor and the duplexing paper sensor.

The machine's duplexing mechanism

does not "switch back" paper (unlike

the GP605), but uses a large-sized

roller to turn over paper.

2-48

Trainer's Reference


Fixing System

1. Outline

The following figure shows the major components of the fixing system:

Figure 2-801

Fixing upper roller

Fixing lower roller

PS4

Inte

rnal

del

iver

y de

tect

ion

sign

al

Cla

w ja

m p

aper

det

ectio

n si

gnal

Web

leng

th

dete

ctio

n si

gnal

Mai

n th

erm

isto

r sig

nal

Mai

n he

ater

driv

e si

gnal

Sub

hea

ter d

rive

sign

al

Main thermistor (TH1)

AC power supply

Web guide plate

Fixing web

PS45

PS52

Sub

ther

mis

tor s

igna

l

Mai

n he

ater

det

ectio

n si

gnal

Sub

hea

ter d

etec

tion

sign

al

Sub thermistor (TH2)

AC driver PCB

DC controller PCB

Thermal witch(TP1)

2-49

Trainer's Reference


2. Temperature Control

The machine's fixing temperature is controlled as follows:

Fixing System

Description

When the fixing roller is 75°C or less at

power-on.

When the rated voltage is 100 V or 120/

230 V.

If the internal temperature read by the

environment sensor is 18°C or more, H

mode; 12° to 18°C, M mode; less than

12°C, L mode.

To lower the print start temperatures for

reduced print time; for E82, 4 min or

less; for E72, 5 min or less.

To increase the fixing temperature for

switching down sequence by 10°C.

To lower the fixing temperature for

switching down sequence by 10°C.

To use a fixing temperature of 203°C or

higher at the start of printing (for M/L

mode after power-on, 211°C) for im-

proved fixing.

To hold printing until the fixing tempera-

ture is 180°C for special paper.

To prevent fixing faults during continu-

ous printing.

To prevent fixing faults of halftone

images during continuous printing.

To prevent overheating at edges of the

fixing roller when small-size paper is

fed.

When transfer paper is present or absent

in the fixing/feeding unit when a jam

occurs.

To lower the control temperature from

normal to reduce power consumption.

Item

[1] power-on

sequence

[2] site-specific

sequence

[3] environment

temperature

sequence

[4] wait time reduce

mode

[5] priority on fixing

mode

[6] priority on produc-

tivity mode

[7] thick paper mode

(120/230V model

only)

[8] special paper

mode

[9] down sequence

(text mode)

[10] down sequence

halftone mode

(non text mode)

[11] edge overheating

prevention mode

[12] jam recovery

mode

[13] power save mode

Mode

Normal

Service

mode

Others

2-50

Trainer's Reference


Soft Counters

1. Outline

The machine is equipped with soft counters keeping counts of prints. The

counts are indicated in response to a press on the Check key on the control

panel.

The soft counters consist of a total of 16 modes, eight each for large-size and

small-size sheets.

The flowing are modes of the basic counters:

*1:At time of shipment, B4 or smaller.

To count B4 as an L-size sheet, make

a change in service mode.

*2:The machine does not have a fax

function, and does not count printouts

of messages received by fax.

*3:The counter display may be

changed or disabled in service mode

(however, the setting of counter 1

cannot be changed).

Copier/printer mode Large-size Small-size*1

Local copy A B

PDL print C D

Box print E F

Remote copy print G H

Fax reception print*2 I J

Report print K L

Double-sided print M N

Scan O P

The following are soft counters grouped according to destination (at time of

shipment):

Counter Description Default display Default switching*3

Counter 1 Total (A to L) ON Fixed.

Counter 2 Total large (ACEGIK) ON May be changed.

Counter 3 Copy 1 (ABGH) ON May be changed.

Counter 4 Copy 1 large (AG) ON May be changed.

Counter 5 Print 1 total (CDEF) OFF May be changed.

Counter 6 Fax total (IJ) OFF May be changed.

Modes supported by the basic counter are indicated within parentheses.

Cha

pter

3 M

aint

enan

ce a

nd In

spec

tion

3-1

Trainer's Reference


Maintenance and Inspection

1. Periodically Replaced Parts

Some parts of the machine must be replaced on a periodical basis to maintain a specific level of performance; they

may be free of external damage or appearance, but can affect the performance once they fail.

It is best to plan the replacement so that it coincides with scheduled servicing.

a. Reader Unit

The reader unit does not have parts that need periodical replacement.

b. Printer Unit

No. Part name Part No. Q'ty Life (sheets) Remarks

1 Primary/pre-transfer/transfer/separation charging wire FB4-3687 AR 500,000 (*)

2 Primary grid wire FY1-0883 AR 500,000

3 Thermistor FH7-7529 1 500,000

4 Sub thermistor FG5-8812 1 500,000

5 Thermal switch FH7-7154 1 1,000,000

*: The old-type wire (gold-plated) must not be used. After replacing the wire, be sure to execute wire cleaning five

times.

3-2

Trainer's Reference



2. Consumables and Durables

Some parts of the machine may require replacement once or more over the period of warranty of the machine because

of wear or damage. Replace them as necessary by referring to the guide below.

a. Reader Unit

The reader unit does not have parts that are classified as durables.

b. Printer Unit

No. Part name Part No. Q'ty Life Remarks

1 Pickup/feed roller (manual feed tray) 1 120,000*

2 Separation roller (manual feed tray) 1 120,000*

3 Pickup roller 8 250,000* Use 2 for each holder.

4 Pickup/feed roller (deck, cassette) 8 250,000* Use 2 for each holder.

5 Separation roller (deck, cassette) 4 250,000*

6 Cleaner separation claw 3 500,000

7 Primary charging wire cleaner 1 2 500,000 Strengthenedpolishing type

8 Primary charging wire cleaner 2 2 500,000 Strengthenedpolishing type

9 Transfer charging wire cleaner 1 1 500,000 Strengthenedpolishing type

10 Transfer charging wire cleaner 2 1 500,000 Strengthenedpolishing type

11 Separation charging wire cleaner 1 500,000

12 Pre-transfer charging wire cleaner 1 500,000

13 Pre-transfer charging assembly scraper 1 500,000

14 Fixing upper roller 1 500,000

15 Fixing lower roller 1 500,000

16 Fixing web 1 500,000

17 Insulating bush (front, rear) 2 500,000 Replace simulta-

neously with fixing

upper roller.

*: Actual sheets processed; may be checked in service mode (COPIER>COUNTER>DURABLE).

3-3

Trainer's Reference




18 Delivery upper separation claw 6 500,000

19 Delivery lower separation claw 2 1,000,000

20 Developing cylinder 1 1,000,000

21 Developing assembly roll 2 1,000,000

22 Cleaning blade 1 1,000,000 Use both edges;

500,000 for each.

Apply toner upon

replacement.

23 Primary charging assembly 1 1,000,000

24 Transfer/separation charging assembly 1 1,000,000

25 Pre-transfer charging assembly 1 1,000,000

c. Side Paper Deck


1 Pickup roller FB4-2033 2 250,000

2 Feed roller FB4-2034 2 250,000

3 Separation roller FB2-7777 1 250,000

3-4

Trainer's Reference



3. Scheduled Servicing Table

a. Reader Unit

b. Printer Unit

: Clean : Replace ×: Lubricate : Adjust : Inspect

Copyboard glass

No. 1 through No. 3 mirror

Dust-proof glass

Light reflecting plate

Standard white plate

Scanner cable

Scanner rail

Remarks

For first 250,000 sheets, perform inspection.

Use silicone oil S20 (FY9-6011).

PartUnit

Optical system

Optical path

×

every250,000

Installa-tion

every500,000

every750,000

every1,000,000

Interval


Grid wire (primary)

Roller electrode

Ozone filter

Dust-proof filter

Charging assembly shield plates

Primary stray toner prevention sheet

Remarks

Remove dust from filter surface.

Remove dust from filter surface.

Perform wire cleaning five times after replacement.

Charging wire (primary, pre-transfer, transfer/separation)

PartUnit

Externals/controls

Charging

every250,000

Installa-tion

every500,000

every750,000

every1,000,000

Interval

3-5

Trainer's Reference



Remarks

Developing cylinder

Developing assembly roll

Anti-stray developer sheet

Inlet guide

Web

Oil receptacle

Thermistor

Sub thermistor

Thermal switch

Feed belt

Feed rollers

Transfer guide

Side scraper

every250,000

Installa-tion

every500,000

every750,000

every1,000,000

Interval

Photosensitive drum

Electrode of slip ring(for drum heater)

Use alcohol (C-17) and drum cleaning powder (CK-0429);

Use alcohol (C-17) to clean the following:1. Electrode2. Protrusions of electrode Apply IMI (FY9-6008) to the following:• Static brush

PartUnit

Photosensitive drum

Developing assembly

Delivery assembly

Cleaner

Fixing assembly

Inspect and remove, as necessary.

Separation claw (upper, lower)

Toner receptacle(front/rear)

Waste toner collection

Pickup/feeding assembly

Waste toner box

Registration roller (upper, lower)

×

3-6

Trainer's Reference


Soft Counters

1. Outline

The machine is equipped with soft counters used to keep count of the number

of prints made, and readings are indicated in response to a press on the Check

key on the control panel.

The soft counters consist in 16 types of modes, eight each for small-sized and

large-sized sheets.

The following are the modes of the basic counter:

The following are the specifics of the soft counters effective at time of ship-

ment.

*1: At time of shipment, B4 or smaller.

To count B4 as an L-size sheet, make

a change in service mode.

*2: The machine does not have a fax

function.

Copier/printer mode Large-size Small-size*1

Local copy A B

PCL print C D

Box print E F

Remote copier print G H

Fax reception print*2 I J

Report print K L

Double-sided print M N

Scan O P

Counter Description Default display Default switching*3

Counter 1 Total (A though L) ON Fixed

Counter 2 Total large-size (ACEGIK) ON May be changed.

Counter 3 Copy 1 (ABGH) ON May be changed.

Counter 4 Copy 1 large-size (AG) ON May be changed.

Counter 5 Print 1 total (CDEF) OFF May be changed.

Counter 6 Fax total (IJ) OFF May be changed.

The modes supported by the basic counter are indicated within parentheses.

*3: The counter display may be

changed or disabled in service mode

(however, the stetting of counter 1

cannot be changed).

3-7

Trainer's Reference


Soft Counters

2. Mechanism

As in the case of the CP660 and the CLC1150/1130, the machine uses a soft

counter (CLC1150/1130 type) as a charging counter.

The main controller PCB keeps count of copies/prints based on information

from the reader controller PCB (RCON) and the DC controller PCB (DCON).

The counter information may be checked from the machine’s control panel.

3. Construction of the Soft Counter

a. Construction of Soft Counter-Related Memory

To ensure the reliability of the counters, the following three types of

memories are used:

a-1 SRAM (main controller PCB)

This is a means of backup also used in other models. The SRAM is

soldered to the main controller PCB, and its data is backed up by the

battery on the main controller PCB.

It has two areas for counter information and one area for the serial number

of each specific machine.

a-2 Parallel EEPROM (counter memory PCB)

It is a non-volatile read/write memory which does not require a battery.

It is soldered to the counter memory PCB, which is screwed to the main

controller PCB.

It has one area for counter information, and it also maintains the serial

number information of each specific machine.

Some of the information contained in

this book relating to soft counters are

highly confidential in nature. Be sure

to control it according to the policies of

the Service Department.

Counter Memory PCB (EEPROM)

The counter memory PCB (parallel

EEPROM) is connected by way of a

connector (parallel I/F) on the main

controller PCB.

Main controller PCB

CPU Counter reading/serial No. matching

Counter readingmemory

Primarybattery

Parallel EEPROM

SRAM

Counter memory PCB Serial number PCB

Serial No.

Serial EEPROM

Serial No.

Counterreadingmemory

Counterreadingmemory

Serial No.

Figure 3-101 Construction of Soft Counter-Related Memory

3-8

Trainer's Reference


Soft Counters

a-3 Serial EEPROM (serial number PCB)

It is a non-volatile memory which does not require a battery.

The serial EEPROM on the serial number PCB found to the rear of the

machine’s hard disk is used to maintain the serial number information of

each specific machine.

The machine’s print speed is switched based on the information from the

serial number PCB, and the PCB is mounted in a location that prevents

easy replacement.

b. Control Mechanism

When a count is incremented and when the machine in standby, a

periodical check is made on counter readings with reference to the serial

number of each specific machine and counter readings.

Serial Number

serial EEPROM data

SRAM data

parallel EEPROM data

Counter readings

SRAM data (2 areas)

parallel EEPROM data

If a mismatch is found in the data items, the memory area in question may

be corrected according to the principle of majority rule or a service call

may be issued.

If one reading (A) is different from the remaining two readings (B, C), the

reading (A) is identified as wrong and corrected so that it will be the same

as the other two (B, C).

2-3 Error Codes

The error codes used in association with the machine's control

mechanisms are as follows:

Code Description

E245 The number of writes made to the counter memory PCB (parallel

EEPROM) has executed a specific number (upper limit of

1,500l,000).

E246 An error has occurred when writing to the counter memory PCB

(parallel EEPROM; a normal counter reading cannot be written).

E247 The three readings, of the SRAM (2 areas) or the main controller

PCB and the counter memory PCB (parallel EEPROM) do not

match.

E350 The serial number PCB is faulty.

3-9

Trainer's Reference


Soft Counters

d. Differences from the CP660

The following explains how the CLC1150/1130’s method (used by the

machine) differs from the one used by the CP660:

d-1 Serial Number Input

In the CP660, the serial number must be entered in service mode whenever

the reader controller PCB (RCON) is replaced.

In the CLC1150/1130, on the other hand, the serial number is

automatically read from the serial number PCB, not requiring entering the

serial number in service mode when replacing the reader or main

controller PCB.

d-2 Counter Memory PCB

The CP660 is quipped with an IC socket for EEPROM on its reader

controller PCB (RCON).

In the case of the CLC1150/1130, on the other hand, a parallel EEPROM

is soldered to the counter memory PCB. The counter memory PCB is

connected using the connector (parallel interface) of the main controller

PCB, and is secured in place with screws, making illegal manipulation of

counter data difficult (as by copying EEPROM contents).

Main control PCB(E82/E72)

Counter memory PCB Serial number PCB

SRAM

Reader controller PCBCP660

SRAM

EEPROM

Serial number input

Figure 3-102

E354

It is indicated when the main controller

PCB and the counter memory PCB are

replaced simultaneously (prohibited)

or the serial number PCB is replaced.

E355

It is indicated if the main controller

PCB and the counter memory PCB are

replaced simultaneously (prohibited).

E354 The serial number information held by the serial number PCB

does not match the serial number information held by the main

controller PCB (SRAM) or the counter memory PCB (parallel

EEPROM); or, the appropriate serial number has not been entered

to the main controller PCB (SRAM) or the counter and the

counter memory PCB (parallel EEPROM).

E355 The serial numbers of the serial number PCB, main controller

PCB (SRAM), and counter memory PCB (parallel EEPROM) do

not match.

3-10

Trainer's Reference


The machine’s ROM version may be upgraded by any of the following ways:

• Using the Download Tool

• Replacing the DIMM ROM

It may be upgraded using the Download Tool as follows:

1. Download Tool

The Service Support Tool, which is a program for downloading, is a modified

(upwardly compatible) version of the one used for the CP660, GP405, or

GP605. The interface, operating system, and operating environment remain

the same.

2. Download Connector

The download connector is located to the right rear of the machine.

Downloading

Figure 3-103

Types of DIMM ROMs in Question

The following types allow re-writing

using the Download Tool:

• ROM on the main controller PCB

• System program within the hard disk

drive.

Download Switch

The machine is not equipped with a

download switch. To switch between

LOAD and COPY, use service mode.

Downloadconnector

Cha

pter

4 A

cces

sorie

s

4-1

Trainer's Reference


DADF-D1

1. Features

a. Designed Exclusively for Stream Reading

It is exclusively designed for stream reading in all modes.

b. Identifies the Size of Originals

It detects the length (feeding direction) and width of an original, sending

the resulting size information to its host device.

c. Supports Double-Sided Originals

It uses a reversing mechanism to support double-sided originals.

d. Extra-Length Mode

Extra-length* mode may be selected, enabling handling of an original as

long as 630 mm.

e. Supports Mixed Sizes (same or different configurations)

It accepts two different original sizes.

*1: To use extra-length mode,

appropriate settings must be made in

service mode.

4-2

Trainer's Reference


2. Specifications

DADF-D1

Auto pickup/delivery

Face-up on original tray

Center reference on original tray

Top separation

Pickup

Original orientation

Original placement

Original separation

100 sheets

Single-sided, double-sided

Yes (default sizes only)

Yes (in conjunction with host)

80 g/m2 paper or less

80 g/m2 paper or less

Original tray capacity

Yes (50 mm or less in thickness)Book original

Original handling mode

Original size identification

Residual original

Yes (same configuration)• If of same configuration,AB: A4/A3, B5/B4, A5/A4RYes (different configurations)• If of different configurations,AB: A3/B4, A4/B5, B4/A4R, B5/A5

Mixed original sizes

Original type

Original delivery tray capacity

100 sheets 80 g/m2 paper or less

Single-sided original: 38 to 18 g/m2

Double-sided original: 50 to 128 g/m2

If length is 432 mm or more, 60 to 90 g/m2.


Original size A5 to A3/STMT to 279.4 × 431.8mm (11"×17")Width: 148 (A5R) to 297 (A3) mmLength: 140 (STMT) to (11"×17") mm

In extra-length mode, up to 630 mm (80 g/m2 paper or less)

4-3

Trainer's Reference


24 VDC (from host device)

12.0 kg (approx.)

565 (W) × 508 (D) × 160 (H) mm

xxxx

Power supply

Weight

Dimensions

Communication with host device

IPC communication 2


Operating environment Temperature Humidity

Same as host device

Serial number

DADF-D1

4-4

Trainer's Reference


DADF-D1

3. External View

Figure 4-101

[1]

[4]

[3]

[5]

[6]

[2]

[1] Upper cover

[2] Rear cover

[3] ADF controller cover

[4] Side guide

[5] Pickup tray

[6] Front cover

4-5

Trainer's Reference


DADF-D1

4. Cross Section

Figure 4-102

[1] [2] [3] [4] [5] [6]

[13] [11]

[7]

[10]

[8]

[12]

[9]

[1] Feeding large roller

[2] Registration roller 2

[3] Registration roller lower

[4] Registration roller upper

[5] Separation pad

[6] Feed roller

[7] Separation plate

[8] Pickup roller

[9] Delivery tray

[10] Delivery reversing roller lower

[11] Delivery reversing roller upper

[12] Read roll 2

[13] Read roll 1

4-6

Trainer's Reference


DADF-D1

5. Drive Chart

Figure 4-103

PI1

S1

S3

SL2

M3

CL1

M1

S2

PI5 PI4PI3

M2

Fee

d m

otor

driv

e si

gnal

Orig

inal

det

ectio

n si

gnal

(by

rea

d se

nsor

)

Orig

inal

sen

sor

Lock

ing

sole

noid

driv

e si

gnal

Del

iver

y re

vers

al m

otor

driv

e si

gnal

Reg

istr

atio

n 1

orig

inal

det

ectio

n si

gnal

Pic

kup

mot

or d

rive

sign

al

Pic

kup

clut

ch d

rive

sign

al

Orig

inal

set

sig

nal

A4R

/LT

RR

iden

tific

atio

n si

gnal

Larg

e-/s

mal

l-siz

e id

entif

icat

ion

sign

al

ADF controller PCB

Pos

t-se

para

tion

orig

inal

det

ectio

n si

gnal

4-7

Trainer's Reference


DADF-D1

6. Operations

a. Outline

The machine executes the following four types of operation modes; it executes each mode according to the

instructions from its host device (see the table for names of modes and corresponding print modes):

The terms “small-size” and “large-size” refer to the following:

[1] CW pickup/delivery

[2] CW pickup/reversal delivery

[3] idle feed/pickup/delivery

[4] idle feed/reversal pickup/delivery

single-sided original to single-sided printsingle-sided original to double-sized printsingle-sided originals of different configurations (small-size) to single-sided printsingle-sided originals of different configurations (small-size) to double-sided print

double-sided original to double-sided printdouble-sided original to single-sided printdouble-sided original of mixed configurations (small-size) to single-sided printdouble-sided originals of different configurations (small-size) to double-sided print

double-sided originals of different configurations (large-size) to double-sided printdouble-sided originals of different configurations (large-size) to single-sided print

single-sided original of different configurations (large-size) to single-side printsingle-sided originals of different configurations (large-size) to double-sided printextra-length original to single-sided print

Picks up an original; after printing, delivers it as it is.

Picks up an original; after printing, reverses and delivers it.

Feeds an original without printing to identify its size; picks it up once again, and delivers it as it is after printing.

Feeds an original without printing to identify its size; picks it up once again, reverses it, and delivers it as it is after printing.

Operation Outline Corresponding printer mode

Small-size

Large-size

A5R, A4R, B5R, LTRR, A5, A4, B5, LTR, STMT

A3, B4, LGL, 279.4 × 431.8 mm (11"×17")

4-8

Trainer's Reference


DADF-D1

b. CCW Pickup/Delivery (from single-sided to single-sided)

Figure 4-104 shows the flow of originals.

Figure 4-104

Pickup

Arching 1

Arching 2

Wait for reading

Delivery

Original

Wait for reading

4-9

Trainer's Reference


DADF-D1

c. CW Pickup/Reversed Delivery (double-sided to double-sided)

Figure 4-105a shows the flow of originals.

Wait for reading

Reading the face

Reversal

Arching

To next page

Arching 2

Original

Pickup

Arching 1

Figure 4-105a

4-10

Trainer's Reference


DADF-D1

Feeding

Reversal

Delivery

Wait for reading

Reading the back

Feeding

Feeding

Figure 4-105b

4-11

Trainer's Reference


DADF-D1

Figure 4-106a

d. Idle Feeding/Pickup/Delivery (mixed configurations, double-sided (large-size) to double-sided)

Figure 4-106a shows the flow of originals.

Pickup

Idle feeding

Re-pickup from reversal assembly

Wait for reading

Reading the back

Feeding

To next page

Arching

4-12

Trainer's Reference


DADF-D1

Figure 4-106b

Delivery

Wait for reading

Reading the face

Reversal

4-13

Trainer's Reference


DADF-D1

e. Idle Feeding/Reversed Pickup/Delivery (different configurations, single-sided (large-size) to single-

sided)

Figure 4-107 shows the flow of originals.

Figure 4-107a

Re-pickup from reversal assembly

Feeding 1

Wait for reading

Reversal

Feeding 2

To next page

Pickup

Idle feeding

4-14

Trainer's Reference


DADF-D1

Figure 4-107b

Delivery

Reading the face

4-15

Trainer's Reference


DADF-D1

7. Detecting Originals

a. Outline

The machine uses one of two methods of detecting an original according to the selected print mode:

• In normal printing mode (other than mixed configurations printing mode and extra-length mode)

• Mixed configurations printing mode and extra-length mode

b. Normal Printing (other than mixed configurations printing mode and extra-length mode)

In normal printing, originals are identified in any of the following three ways:

c. Mixed Configurations Printing Mode and Extra-Length Mode

In mixed configurations printing mode, originals are identified in any of the following two ways:

Detecting the presence/absence of an original

Detecting the initial original size• Feeding direction

• Cross-feeding direction

Detecting the size of the last original• Cross-feeding direction

Original set sensor (PI1)

Large-/small-size distinction sensor (PI3)

Original width volume (VR1)A4R/LTRR distinction sensor (PI4)

Post-separation sensor (S3)

Finds out whether there is an original on the original tray.

Finds out the length of the original set on the original tray (distinction between small size and large size).

Detects the width of the original set on the original tray.

Finds out the length of the original in feeding direction within the feeding path.

Function Description Sensor used (notation)

Detecting the presence/absence of an original

Detecting the length of an original

Original set sensor (PI1)



Read sensor (S2)

Finds out the presence/absence of an original on the original tray.

If the post-separation sensor (S3) is off (small-size) at the read wait position,• Computes the length with reference to the feed

distance from where the post-separation sensor turns off (passage of trailing edge) to where it stops at the wait position.

If the post-separation sensor (S3) is off (small-size) at the read wait position,• Computes the length with reference to the feed

distance from where the read sensor (S2) turns on during idle reversal to where the read sensor (S2) turns off.

Function Description Sensor used (notation)

4-16

Trainer's Reference


DADF-D1

8. Table of Sizes for Identification

The following tables show the default sizes that the machine identifies:

[AB-Configuration]

148 < W <164

164 < W <195

195 < W <235

235 < W <267

267 < W <297

Default size Original width W (mm)


A5R

B5R

A5

A4R

B5

B4

A4

A3

OFF

ON

OFF

ON

OFF

ON

OFF

ON

4-17

Trainer's Reference


DADF-D1

Intentionnally blank page

4-18

Trainer's Reference


DADF-D1

9. Maintenance and Inspection

a. Periodically Replaced Parts

The machine does not have parts that must be replaced on a periodical basis:

b. Consumables and Durables

Some parts of the machine may require replacement once or more over the period of warranty of the machine

because of wear or damage. Replace them as necessary by referring to the guide below.

The number of originals picked up by the machine may be checked in the service mode of the host device.

1

2

3

4

Pickup roller

Feed roller

Separation pad

Separation pale

1

1

1

1

80,000

80,000

80,000

80,000

The number of copies represents the actual number of copies made, which may be checked in the service mode of the host device (COPIER>COUNTER>DURABLE).

No. LifeQ'tyPart No.Part name Remarks

4-19

Trainer's Reference


DADF-D1

c. Scheduled Servicing Chart

Remarks


Copyboard glass

Copyboard glass retainer

Platen guide

White pale

Vertical size pale

Post-separation sensor

Read sensor

Delivery reversal sensor

Registration roller upper

Registration roller lower

Registration roller 2

Feed large roller

Feed roll 1

Feed roll 2

Delivery reversal roller upper

Delivery reversal roller lower

Pickup roller

Separation pad

Feed roller

Separation plate

-

-

-

-

-

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

80,000 sheetsor 6 mo

160,000 copiesor 1 yr

Components of the reader unit

The number of copies represents the actual number of copies made, which may be checked in the service mode of the host device (COPIER>COUNTER>DURABLE).

Part nameRef. No.

Intervals

4-20

Trainer's Reference


DADF-D1

Figure 4-108 shows the arrangement of the parts that are serviced on a periodical basis.

Figure 4-108

[2]

[7] [6] [5] [4] [1] [14]

[8] [11]

[15]

[10]

[12]

[9]

[13]

[3]

4-21

Trainer's Reference


Finisher-F1/Saddle Finisher-F2

1. Specifications

a. Finisher

Tray ascent/descent type (2-level tray)

Face-up/face-down

Stacking method

Stacking direction

64 to 200 g/m2Stack paper weight

Yes

No

Paper detection

Control panel/display

Latching by mounting plate

669 (W) × 582 (D) × 1052 (H) mm (punch width of 744.5 mm)

25 kg (X2); 49 kg (X3); 3.5 kg (punch)

From host device

170 W or less

Mounting

Dimensions

Weight

Power supply

Operating noise

Tray 1L size: 74 mm (equivalent of 500 sheets)S size: 147 mm (equivalent of 1,000 sheets)

Tray 2L size: 74 mm (equivalent of 500 sheets)S size: 147 mm (equivalent of 1,000 sheets)

Stack height (for non-stapling)

Tray 1L size: 500 sheets/30 sets/74 mmS size: 750 sheets/30 sets/110 mm

Tray 2L size: 500 sheets/30 sets/74 mmS size: 750 sheets/30 sets/110 mm

Stacking height (for stapling)

Mixed stacking

Maximum power consumption

Size: 44 mm (equivalent of 300 sheets)Staple: 22 mm (150 sheets, 30 sets)

Overflow A signal is issued if the maximum is exceeded for each size and tray; in staple mode, a signal will also be issued for an excess number of sets and sheets or an excess height.

Item Specifications Remarks

Operating mode

Stack paper size

Stack offset: 30 mmNon-sort stackingSort stacking (stack offset stacking)Staple stacking

AB: A3, A4, A4R, A5, A5R, B4, B5, B5R

Values within parentheses represent 80 g paper.Alignment is not guaranteed if 750 sheets or more.

4-22

Trainer's Reference


b. Stapler

Figure 4-201

Punching by rotating cam

See Figure 4-201.

1-point stapling: A4R, LTRR, LGL

Face down staplingStapling method

Stapling position

Paper size

Special cartridge

Special staples

Yes

No

Staple replenishment

Staple

Staple detection

Manual stapling

Stapling capacity Equivalent of 80 g paper.Includes 2 thick sheets (covers).

S size: 50 sheetsL size: 30 sheets

2-point stapling: A3, A4, B4, B5, 279.4×431.8 mm (11"×17"), LTR


Angle stapling (rear): A3, A4, B4, B5, 279.4×431.8 mm (11"×17"), LTR

Angle stapling (front): A3, A4, A4R, B4, B5, 279.4×431.8 mm (11"×17"), LGL, LTR, LTRR


1 1-pint stapling (front)A3 B4 A4 A4R B5LDR LGL LTR LTRR

2 1-point stapling (rear)A4RLTRR LGL

3 1-point stapling (rear)A3 B4 A4 B5LDR LTR

4 2-point taping

Stapling position accuracy

L2

L1L3

30˚ 30˚

L182.7±462.7±473.7±4

L2202.7±4182.7±4193.7±4

L35±25±25±2

A3 A4B4 B5

LDR LTR

size

Standard width: 6±2Standard width: 6±24.4±2

4.4±2 5±2 4±2

4-23

Trainer's Reference



c. Saddle Stitcher

Figure 4-202

Folding in two, stacking Fixed trayStacking method

A3, B4, A4R, 279.4×431.8 mm (11"×17"), LTRRPaper size

By special cartridge

Special staple

No

A signal will be issued when a maximum stack is exceeded.

From host device.

2,000 staples/cartridge

Same as STS-D1.

Staple replenishment

Staple type

Trimmer

Overflow

Power supply


Binding By roller.Middle position may be adjusted.

Middle (stack folded in 2)

Binding position With reference to middleFixed interval

See Figure 4-202.

Paper type No special paper, postcard, or transparency allowed.

64 to 80 (one cover of 64 to 200 g/m2)

Stack thickness Includes one cover.w/o binding: 1 sheetsw/ binding: 2 to 15 sheets


160 W or less

Stack 5 sheets or less: 25 sets6 to 10 sheets: 15 sets11 to 15 sheets: 10 sets

sizeA3B4

A4RLDRLTRR

L188.568.545

79.748

L3±1Feed direction

L2±2

L1±2

L2208.5188.5165

199.7168

L3210182

148.5216

139.7

Binding position accuracy

4-24

Trainer's Reference



d. Puncher

Figure 4-203

Reciprocating method Consecutive handlingPunch

See Figure 4-203.

By finisher

Hole position accuracy

Power supply


Paper type No transparency or tracing paper is allowed.

64 to 200 g/m2

Paper size

Hole diameter

2-hole: A3, A4, A4R, B5, B5R3-hole: 279.4× 431.8 mm (11"×17"), LTRR4-hole: A3, A


120 W or less

2-hole: 6.5 mm3-hole: 8.0 mm4-hole: 6.5 mm

Equivalent of 80 g/m2 paper.

Waste paper 2-hole: 10,000 sheets or more3-hole: 5,000 sheets or more4-hole: 5,000 sheets or more

A4/A3B5/B4A4RB5R

X1108.5±388.5±365±351±3

LTR/LDRX1

31.5±3

A4/A3X1

28.5±3

A4/A3X1

92.5±3

1 2-hole (non-USA)

12±3X1

X1

12±3

12±3

12±3

80±1 80±1 80±1 X1

21±1 70±1 21±1 X1

108±1 108±1

80±1

4 4-hole (SWE)

3 4-hole (FRN)

2 3-hole (USA)

4-25

Trainer's Reference



2. Maintenance and Inspection

a. Periodically Replaced Parts

The machine does not have parts that must be replaced on a periodical basis.

b. Consumables and Durables

Some parts of the machine may require replacement once or more over the period of warranty of the machine

because of wear or damage. Replace them as necessary by referring to the guide below.

The number of times each durable of the machine has been used may be checked in the service mode of the host

device (COPIER>COUNTER>DURABLE).

3 Knurled belt FB4-6656 2 2,000,000 times

No. LifeQ'tyPart No.Part name Remarks

1 1 500,000 stapling operations

5,000 staples/cartridgeEB4-5390Stapler (handling tray)

4 2 1,000,000 operations

Paddle unitPaddle rubber only

EG5-8178FB4-6825

Stapler paddle

5 1 1,000,000 operations

2-hole model3-hole model4-hole model4-hole model (SWD)

FG6-6235FG6-6236FG6-6237FG6-6238

Puncher

2 2 100,000 saddle stitching operations

2,000 staples/cartridgeEB3-7860Stapler (saddle stitcher)

4-26

Trainer's Reference



3. Scheduled Maintenance Chart

No. Item RemarksIntervals

Knurled belt

Stapler paddle

Penetrating type sensor (punch)

1

2

3

Same as minimum maintenance interval of host device.Cleaning

IR5000-6000tr

Documents

fluorescent material inside

electric discharge occurs

main controller pcb

dc controller pcb

prevent fixing faults

primary charging assembly

facet polygon mirror

transfer charging assembly