SM FS 7000 9000_5

Chapter 5

DISASSEMBLY

1-1-11FS-7000+/FS-9000

CONTENTS

Chapter 5 DISASSEMBLYGeneral Instructions .................................................................................................. 5-1

Before starting disassembly ..................................................................................... 5-2

Disassembly ............................................................................................................... 5-3Developer unit .............................................................................................................. 5-3Removing the paper feed unit ...................................................................................... 5-6Removing the transfer roller unit .................................................................................. 5-7Removing the drum unit ............................................................................................. 5-11Main charger unit ....................................................................................................... 5-12Removing the controller cover ................................................................................... 5-13Removing the controller box ...................................................................................... 5-15Right side cover/Feeder unit ...................................................................................... 5-17Removing the face-down unit .................................................................................... 5-20Removing the manual feed roller/Separator .............................................................. 5-22Drive gears assembly ................................................................................................ 5-23Removing the fuser unit ............................................................................................. 5-27Removing the heater lamps ....................................................................................... 5-29Removing the laser scanner ...................................................................................... 5-35

5-1FS-7000+/FS-9000

General Instructions

This chapter provides procedures for removal and replacement of field replacementcomponents. For other components not shown in this chapter, the diagrams in the Partscatalog attached with this manual will help locate the component.For replacement of a component, use the reverse of the removal procedures explained inthis chapter.Before proceeding, make sure printer power is switched off and the power cord is unpluggedfrom the printer. See Warning below.

Warning: To avoid injury to human bodies, make sure that AC power is removed and thepower cord is unplugged from both the power line and the printer.

Caution: To secure a self-tapping screws, align it with the thread carefully. First turn itcounterclockwise, then slowly clockwise. Do not over-tighten. In case theselftapped thread is damaged, the affected part must be replaced with a newpart.

Screws/hardwarescrews and hardware used in the printer are listed in the beginning section of the Partscatalog.Symbol numbers also given in the list for these screws are refered to in thedisassembling instructions in the following pages.

5-2FS-7000+/FS-9000

Before starting disassembly

Warning: Before proceeding, unplug the power cord from the printer and the powersupply.

Warning: Never attempt to operate the printer with a component removed.

Caution: The printer uses electrostatic-sensitive parts inside (on boards, laser scanner,etc.). Provide an antistatic (discharging) device, such as a wrist strap, that caneffectively discharge your body before touching boards, laser scanner, etc.

5-3FS-7000+/FS-9000

Disassembly

Developer unit

First, the toner container must be removed.

Open the top cover. The toner container 1 must be removed first: Pull the toner containerrelease lever 2 as below. Pull the toner container 1 slowly up, keeping it as level aspossible.

2

1

5-4FS-7000+/FS-9000

Open the front cover. Locate the developer unit release lever 3 and turn it clockwise to theupper position. Grasp the developers front end as shown below and slowly draw thedeveloper 4 out from the printer.

4

3

Notes: After removing the developer, seal it in the protective bag and place it on a flat

surface. Do not place the developer in a dusty area. Do not place floppy disks near the developer.

5-5FS-7000+/FS-9000

REPLACING THE DEVELOPER UNIT

To replace the developer unit into the printer, be sure to align the guides and rails on thedrum unit with each other. Do not force to slide the drum unit in unless they are properlyaligned with each other.

When the developer unit has been fully seated, remove the protective cover.

Caution: Do not rush the developer unit into the printer. It may cause damaging thedeveloper unit connector and an uneven toner distribution inside the developerunit which may result in a printing problem.

5-6FS-7000+/FS-9000

Removing the paper feed unit

The paper feed unit can be removed from the printer without using a tool.

Note: If duplexer DU-30*/DU-31 is installed in the printer, uninstall it before proceeding.

While holding and pushing the locking tab 1 at the left side of the paper feed unit, draw thepaper feed unit all the way out.

1

*: Optional for FS-7000+ model only.

5-7FS-7000+/FS-9000

Removing the transfer roller unit

Before removing the transfer roller unit, remove the paper feed unit out of the printer. Then,the transfer roller comes out without needing a tool.

Caution: Do not touch the transfer roller (sponge) surface. Oil and dust (particles of paper,etc.) on the transfer roller can significantly deteriorate the print quality (whitespots, etc.).

Remove the two screws 1 and detach the chute up guide 2. (For FS-9000 model only)

1

2

5-8FS-7000+/FS-9000

The transfer roller unit 3 is held in place by two joints at both ends. To remove the transferroller unit: Hold the tab at both left and left sides of the transfer roller unit first. Whenremoving, tilt the transfer roller unit upward so that the joints are aligned to free the transferroller unit.

3

5-9FS-7000+/FS-9000

CLEANING THE TRANSFER ROLLER UNIT

To clean the transfer roller, remove the transfer roller unit out from the feed unit as shownon page 5-7. Use a vacuum cleaner, moving nozzle along the roller, but do not let the nozzledirectly touch on the roller, while rotating the transfer roller by the gear. Thoroughly cleanthe entire surface of the roller.

INSTALLING THE TRANSFER ROLLER UNIT

To install the (new) transfer roller unit, align the mounting holes 1 of the transfer roller unitwith the joints 2 of the paper feed unit.

1

2

5-10FS-7000+/FS-9000

Fit the chute up guide 3 with the two screws 4. (For FS-9000 model only)

4

3

5-11FS-7000+/FS-9000

Removing the drum unit

Caution: Removing or reinstalling the drum unit requires the drum protective coversupplied with the new drum kit package. Do not forcibly attempt to remove thedrum without following the procedures provided below, using the drum protectivecover.

Caution: Store the drum unit in a clear, clean place, not exposed to a strong light source.Seal it in a protective bag. Avoid bump the drum surface onto hard objects.

To remove the drum unit 1, first insert the drum unit protective cover 2 as shown below.This unlatches the drum unit for removal. Be sure to install the protective cover firmly in.

2

1

3

While pressing the drum release lever 3 at the left side of the printer, as shown below, pullthe drum unit all the way out. It should come off with the protective cover. When the drumunit is halfway out, hold the handle at the top of the drum unit.

5-12FS-7000+/FS-9000

Main charger unit

Pull the main charger 1 until it stops. While pushing the (white) locking button 2 the printer,pull the main charger unit all the way out.

The main charger unit is technically explained in chapter 4, Operation.

2

1

5-13FS-7000+/FS-9000

Removing the controller cover

Remove the controller cover by removing the screws 1 below.

Disconnect the one connector 2 on the engine board at the back.

11

2

5-14FS-7000+/FS-9000

Open the front cover and remove the screws 3 below.

3

3

Remove the screws 4 and 5. All these are self-tapping screws of the same type. Then,remove the top cover.

5

4

5-15FS-7000+/FS-9000

Removing the controller box

Remove the connectors 1.

Remove the middle bracket by removing four screws 2.

1

11

1

1

2

2

5-16FS-7000+/FS-9000

Remove two screws 3 to remove the controller box.

3

3

5-17FS-7000+/FS-9000

Right side cover/Feeder unit

Remove four screws, 1 and 2, and remove the right side cover.

21

Remove three screws 3.

3

3

3

5-18FS-7000+/FS-9000

Remove the screw 4 at the front side.

Remove the controller box (Refer to Removing the controller box, the previous section.),then remove the screw 5 below to remove the ground wire (black) 6 of the feederassembly.

FS-7000+

4

5

6

5-19FS-7000+/FS-9000

FS-9000

6

5

After removing the above screw, set the drum unit release lever to the left (down) position.Then, carefully remove the feeder assembly.

5-20FS-7000+/FS-9000

Removing the face-down unit

Remove the face-up tray by pulling the left and right arms of the tray while pushing in thelocking tab 1 for each arm.

Remove six screws 2 and remove the left cover.

11

2

22

22

2

5-21FS-7000+/FS-9000

Remove the screw 3 on the front side (below). Then, remove the one on the rear side.

3

5-22FS-7000+/FS-9000

Removing the manual feed roller/Separator

While pressing the locking tab 1 in, remove the manual feed roller.

To remove the separator 2, use a small flat blade screwdriver in the manner shown below.

1

2

5-23FS-7000+/FS-9000

Drive gears assembly

Begin removing the driver gear assembly by first removing the sub gears assembly C. Thisassembly mounts gears for driving the toner container and the waste toner conveyer. Toremove this assembly, remove two screws 1.

Detach the connector 2 from the waste toner conveyer housing. Then, remove the wastetoner conveyer housing. To remove this part, remove three screws 3. The right side covermust be removed first. Remove five screws. Detach two connectors. Then remove the driveassembly from the printer.

1

Sub gears assembly C

3

3

2

Waste toner conveyer housing

5-24FS-7000+/FS-9000

4

Main motor assembly

FS-7000+

To remove the main motor assembly, remove all screws indicated as 4 below.

To remove the drive gears assembly, remove three screws 5 as shown below.

5

5-25FS-7000+/FS-9000

FS-9000

Detach the connector 3 from the main motor. Remove the five screws 4 and detach themain motor.

4

3

4

Main motor

Remove the five screws 5 and detach the main motor assembly.

5

5

Main motor assembly

5-26FS-7000+/FS-9000

Detach the connectors 6 from the drive gears assembly.

Remove the three screws 7 and detach the drive gears assembly.

6

6 Drive gears assembly

7

7

7

Drive gears assembly

5-27FS-7000+/FS-9000

Removing the fuser unit

The fuser unit can be detached from the feed unit without the need for a tool. To remove thefuser unit, first open the feed unit as follows; turn the lock lever counterclockwise, raise andhold the (green) handle, and then gently pull the feed unit frontward.

Warning: The fuser is hot after the printer was running. Wait until it cools down.

Lock Lever

Paper Feed unit

Fuser unit

Handle

5-28FS-7000+/FS-9000

To remove the fuser unit, unlatch the fuser unit from the feed unit. This is done by releasingthe latch at both sides of the fuser unit in the manner shown below.

Then, hold the fuser unit using both hands and lift gently. Remove as shown below.

Latches: Move to the arrowed direction to release the fuser unit.

Fuser unit

5-29FS-7000+/FS-9000

Removing heater lamps

The fuser unit includes two heater lamps which are different in function and shape (length).

FS-7000+

Remove the two screws 1 and detach the cover.

Remove the one screw 2 and detach the terminal.

1

Cover

3

2

5-30FS-7000+/FS-9000

To gain access to the heater lamps in the fuser, first, remove the cover (on the connectorside) as shown below, by removing two screws 3.

Remove the screw 4 shown below and remove the terminal.

33

Fuser unit

4

5-31FS-7000+/FS-9000

5

Remove the appropriate screw 5 to remove the lamp.

Warning: The heater is extremely hot immediately after the printer was running. Allowsubstantial period of time until it cools down. Also, the heater is fragile: Handleit with great care.

Cautions: The heater lamps are fragile. Use extreme care when handling not to drop or break. Do not directly touch on the heater lamp. Finger prints on the heaters outer surface can

prevent proper fusing of toner on paper.

5-32FS-7000+/FS-9000

Remove the two screws 2 and detach the cover.

1

Cover

2

Cover

FS-9000

Remove the three screws 1 and detach the cover.

5-33FS-7000+/FS-9000

Remove the screw 3 and detach the terminal.Remove the lamp wires from the clamp 4.

3

4

5Cover

Remove the two screws 5 and detach the cover.

5-34FS-7000+/FS-9000

Remove the two screws 6 and detach the terminal. Then remove the lamp.

Warning: The heater is extremely hot immediately after the printer was running. Allowsubstantial period of time until it cools down. Also, the heater is fragile: Handleit with great care.

Cautions: The heater lamps are fragile. Use extreme care when handling not to drop or break. Do not directly touch on the heater lamp. Finger prints on the heaters outer surface can

prevent proper fusing of toner on paper.

6

5-35FS-7000+/FS-9000

1

1

2

Laser scanner

Removing the laser scanner

To remove the laser scanner, the top cover and the face-down unit must be removed first.For details, see page 5-13.

Warning: The laser scanner contains electrostatic-sensitive parts inside (laser diode,etc.). Before touching the laser scanner, provide an antistatic (discharging)device, such as a wrist strap, that can effectively discharge your body.

To remove the laser scanner, remove screws 1 and 2. Detach connectors as needed.After removing the scanner, handle it carefully.