Lexmark CS820de€¦ · Lexmark CS820de 57 PPM Colour Laser Printer Test duration: Two months, including a ... IP address, model name, serial number and state . Its search function

Lab Test ReportBUYERS LAB

BUYERS LAB

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BLI RECOMMENDATION

EUROPEAN EDITION

A Comprehensive BLI Laboratory Evaluation MARCH 2016

An exceptional value, the Lexmark CS820de proved to be an outstanding choice for large, busy workgroups that need high-quality colour and maximum uptime. The highly reliable device delivered class-leading speeds in the majority of BLI’s produc-tivity tests, proving it can handle any kind of job, from long- to short-run. Users can also count on top-quality output regard-less of job type, as output was exceptional in colour mode and very good in black mode. The unit’s outstanding ease of use and numerous time-saving features help to boost productivity even further. The touchscreen control panel features an intuitive menu system that makes walk-up functions a breeze, and op-tional Near-Field-Communication (NFC) technology allows users to print with a simple tap of their mobile device to the machine. In addition, the CS820de boasts of a number of features that are not commonly seen in devices in its class such as the ability to print Microsoft Office documents from USB and an optional in-ner finisher. The unit also stood out for its high maximum paper, memory and hard drive capacities, along with the heavy media weight support it provides through the drawers. Based on its robust feature set and excellent productivity, BLI highly recom-mends it for large workgroup users in need of a colour printer.

Lexmark CS820de57 PPM Colour Laser Printer

Test duration: Two months, including a 125,000-impression durability test.

Maximum monthly duty cycle: 200,000 impressions.

Manufacturer’s recommended monthly volume: 2,500 to 25,000 impressions

More information on the Lexmark CS820de is available through bliQ (www.buyerslab.com/bliQ).

Reliability ................................................................ Excellent

Administrative Utilities .......................................... Very Good

Feedback to Workstations ..................................... Very Good

Ease of Network Setup.......................................... Very Good

Print Drivers .......................................................... Very Good

Colour/Black Print Quality ...................... Excellent/Very Good

Colour/Black Print Productivity ................................ Excellent

Ease of Use ............................................................. Excellent

Feature Set ........................................................... Very Good

Security Features ...................................................Not Rated

Environmental Features .........................................Not Rated

Lab Test Report Lexmark CS820deBUYERS LAB

BUYERS LAB

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STRENGTHS

• Minimizes downtime with excellent reliability and class-leading speeds in many productivity tests

• Enhances productivity even more with intuitive touchscreen control panel, a projected user intervention rate that’s much lower than average and simple routine maintenance procedures

• Produces exceptional colour output as well as high-quality black output

• Supports the rare ability to print Microsoft Office Documents from USB and offers a space-saving inner finisher, while many competitors don’t even have finishing options

• Allows users to print with a tap of their mobile device via optional NFC technology

• Handles a wide variety of media with high maximum paper capacity and heavy media weight support through the drawers

• Can store more documents and process them quicker with high memory and hard drive capacities

• Integrates with third-party and Lexmark-developed software via embedded Lexmark Embedded Solutions Frame-work

• Minimizes waste and saves costs with the print drivers’ Colour Saver mode, the ability for administrators to restrict colour printing and thumbnail preview when printing from flash drives, allowing users to print only the pages they need

WEAKNESSES

• Low standard paper capacity

RELIABILITY EXCELLENT

The Lexmark CS820de proved highly reliable after producing 125,000 impressions with just one misfeed and no service required.

PMs/Malfunctions Meter Count (Impressions)

Starting Meter Count 0

Ending Meter Count 125,000

Total Misfeeds/Misfeed Rate 1/Not applicable

Service Calls 0

, — and represent positive, negative and neutral attributes, respectively.

TEST RESULTS AND OBSERVATIONS


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ADMINISTRATIVE UTILITIES VERY GOOD

The embedded web page allows administrators to manage the unit and, among other things, see reports about many items, including for the drums, fuser and waste toner container.

All users can access the Device Status tab of the embedded Web page to view toner levels (via gauges) and status of other supply items (indicated as OK or Empty).

Using the search/bookmark model in MarkVision Enterprise (MVE), administrators can build general or very granular searches to capture a particular class of device (or devices with certain attributes in common), then bookmark the search for later use. The MVE util-ity also lets administrators create policies (the preferred configuration settings approved by an administrator) and determine at a glance whether a Lexmark device is in compli-ance with those rules. For example, if an organisation’s environmental initiatives dictate that all output devices be set to duplex by default, MVE will show when a device has been put in simplex mode—and can even be set to bring a device back into compliance automatically.

The utility includes a full reporting engine (a feature its predecessor lacked) so users can generate tabular and graphical reports about devices under management.

However, MVE does not discover locally connected devices or allow for device lists to be customized to show particular data points such as consumables; user must drill down into the individual device page to see this information.

To limit excessive colour toner use, the unit’s Colour Saver mode allows for the black text to print at the normal setting while the colour prints at a draft setting. This feature would be helpful when proofing and printing less-formal documents.

Additional features to restrict colour prints include black only mode, which enables administrator to completely disable colour for all users; three levels of colour and black toner save; Colour Print Permissions, which allows administrators to assign the ability to print in colour to selected users and disable colour printing for other users; and the Mono Only Driver. With this driver, users’ documents print only in black.

MVE’s Managed Printers list provides basic information on discovered devices, including IP address, model name, serial number and state. Its search function lets administrators configure and save searches to sort and find devices that meet specific criteria (such as major errors). And the Service Desk tab presents a simplified screen that provides at-a-glance device and supply status of managed devices for help desk personnel.


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FEEDBACK TO WORKSTATIONS VERY GOOD

Status Center, a basic feedback utility, is installed in conjunction with the drivers, provid-ing pop-up messages and icon alerts for a range of errors, including when the unit’s out of paper or there’s a misfeed. Users can be informed of status by selecting devices in the Status Center.

Pop-ups are supported; the Status Center settings window lets users select when they’ll receive pop-up messages, configure the utility to save an error log, and determine what type of help will be provided when they click on an error message. Users can click on the pop-up to access additional help information.

The printer status window from Status Center provides toner status; via gauges, while other supplies are listed in approximate numeric percentages. Links for ordering sup-plies and accessing the unit’s embedded Web server are also provided.

In BLI’s testing, print job completion notification pop-ups were provided when using Windows 8, but were hidden when using Windows 10.

Administrators can configure e-mail alerts via the embedded Web page or MarkVision Enterprise, to be sent to designated individuals when errors occur.

The embedded Web page and MVE provide toner levels in gauges and remaining paper supply as OK or Empty.

By clicking on a particular model in the MVE device list, administrators can get addi-tional status and supplies information, access the Remote Operator Panel function and link to the embedded Web utility.

Programmable via the embedded Web page, the unit can be set to beep when a toner cartridge is low.

EASE OF NETWORK SETUP VERY GOOD

Physical setup of the unit is straightforward as it ships fully assembled. Users simply remove the outer box and cushions before lifting the device off the stand to put it in the desired location. While two people could certainly do it, Lexmark recommends four people move the device into place due to size and weight concerns. Starter print car-tridges, with declared yields of 8,000 pages per colour, are preinstalled.

Driver installation is simple, and users will be up and running in minutes. The CD launches upon insertion in the drive. It takes eight clicks to install the PostScript driver and, by extension, Status Center; several scan pieces and the enhanced communica-tion software, among others, are installed during the default routine, too. The download and installation of the Universal PCL XL driver (can be downloaded from the CD or from Lexmark’s website) was equally straightforward.

The Remote Install option lets administrators install the drivers onto multiple worksta-tions in a single operation. This can also be achieved via MarkVision Enterprise.


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Regardless of install method, the bidirectional port is automatically created, the IP address is assigned using DHCP, and the drivers auto-detect optional accessories.

The ability to clone settings from one Lexmark CS820 to another, via the embedded Web page, greatly simplifies setup in larger environments.

Downloadable from Lexmark’s Web site, MarkVision Enterprise enables administrators to manage a fleet of mixed hardware. Though details about compatibles are dependent on the manufacturer, this is typical. BLI technicians found installation and setup simple, while the program’s novel yet intuitive Web search paradigm for grouping devices, makes the utility one of easiest to use of those tested to date. In addition, the unique roles-based approach allows IT personnel to easily drill down to the data and tasks they need.

PRINT DRIVERS VERY GOOD

The unit’s PostScript 3 and Universal PCL XL drivers are both compatible with various Windows and Mac operating systems, as well as Linux, UNIX and Citrix, among others. Lexmark recommends organisations routinely go to its website to check for the latest driver support.

The Universal PCL driver is graphical and offers most of the selections for a basic job on the main screen (Layout). The PostScript driver is nearly identical in appearance to the Universal PCL driver. (U.S. model pictured)


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Users are able to save settings for frequently used jobs by simply pressing “Save...” on any tab of the driver.

Toner-save Mode in the drivers helps extend the life of the cartridges and ColourSaver Mode helps conserve cyan, magenta and yellow toner by reducing their densities, while keeping black at its regular setting.

The Quality tab allows users to enhance image quality manually by adjusting the colour correction and colour balance settings. Users can also assign a familiar name (such as “Lexmark green”) to a specific PANTONE shade so they can choose and produce the correct colours, such as corporate logos, easily. (U.S. model pictured)

Lexmark CS820de Print Driver Features

PCL XL

Auto Feature/Device Detection Yes

Booklet Printing Yes

Collate Yes

Max Paper Sources per Job 4

Mirror Image Yes

Negative Image No

N-up Printing 2 to 16

Overlay Yes (no for PostScript)

Paper Gauge No

Print and Hold Yes

Proof Print Yes

Quantity Selection Up to 999


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PCL XL

Reduction/Enlargement None, fit to page (plus 1%-400% for PostScript)

Resolution Modes (dpi) 600 (4800CQ), 1200

Save Settings Yes

Secure Print Yes

Watermarks/Custom Watermarks Yes

Cover Mode Yes (front and back)

Poster Mode Yes

Separator Pages No

Toner Gauge No

Toner Save Yes

Print All Text as Black Yes

COLOUR/BLACK PRINT QUALITY EXCELLENT/VERY GOOD

Colour business graphics and photo image output were outstanding. Business graph-ics were bright and sharp, and reproduction of pastel shades and backgrounds was better than average, as was consistency of solid colours. Photo images were smooth and sharp; halftones were visible over the entire measured range and flesh tones were natural looking. Colour shift was rated good, meaning the unit can also be counted on to produce a decent range of shades.

Text and greyscale range received BLI’s highest rating. Text was dark, sharp and smooth with fully formed characters while greyscale was visible over the entire measured range with distinct separation between all levels.

Line art, greyscale fill and solids all received very good ratings. Closely spaced fine lines were distinct and consistent, and no toner overspray or haloing was noted. In greyscale, smoothness was competitive and no banding was evident. Solids were dark and con-sistency of coverage was average.

Text Excellent

Line Art Very Good

Halftone Pattern Very Good

Halftone Range Excellent

Solids Very Good

Colour Business Graphics Excellent

Colour Photographic Images Excellent

Colour Shift Good


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Colour print quality is tested using a colour test target with print samples taken at five evenly spaced intervals throughout the test period. Test targets are read using an X-Rite Eye-One/iO Colour Spectrophotometer, and samples are analysed using the CIE XY Chromaticity Diagram. The unit employs an internal automatic calibration process.

Colour Shift

Test Point Delta E BLI Rating

37,000 4.80 Good

62,500 3.64 Good

95,313 4.44 Good

125,000 3.70 Good

Delta E is a measurement assessing the distance between colours. The readings reflect the average shift of the gamut from the previous measured point.

Lexmark CS820de Colour Gamut

Colour Print Density Readings

Cyan Magenta Yellow

Lexmark CS820de 1.36 1.18 1.01

Average for devices in this class tested to date 1.14 1.19 0.89

Density of a printed image with blocks of all solid colours (based on the average of two readings for each colour).


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Print Density

Range Average

Lexmark CS820de 1.38 to 1.44 1.14 to 1.78

Devices in this class tested to date 1.40 1.44

Measurements are based on four readings corresponding to four different solid black locations on the output. The higher the density reading, the darker the image.

Visible Halftone Range

Lexmark CS820de 10% to 100%

The halftone range test original consists of 10 blocks of increasing dot-fill levels (10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% and 100%).

COLOUR/BLACK PRINT PRODUCTIVITY EXCELLENT

The CS820de was the fastest model in the competitive group when printing multiple and single sets in both black and colour modes.

The device was also more productive than average when printing our job stream test, which simulates typical print traffic in a busy workgroup environment.

First-print times for PDF, PowerPoint and Word documents were fast, while first-print time for Excel documents was competitive. Recovery time from overnight sleep was also faster than average.

First-Print Time from Overnight Sleep

Lexmark CS820de 23.69

Competitive Average 35.27

Device sits idle overnight; a single-page black Word document is sent to the device; first-print time in seconds indicates the time it took to warm up, process, image, and deliver a single-page test document to the output tray. The unit was tested with the PCL driver.


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First-Print Times by File Type | Competitive Average

Windows XP Time in Seconds

Word DOC Black Text 7.56 10.59

Excel XLS Colour Graphic/Text 10.09 12.78

PowerPoint PPT Colour Graphic/Text 9.34 12.00

Acrobat PDF Black Graphic/Text 7.33 11.66

First-print time in seconds indicates the time it took to process, image and deliver a single-page test document set to the output tray. The unit was tested using the PCL driver.

First-Print Times by File Type | Competitive Average

Tested ModelCompetitive Average

0 Seconds 5 1510

Word DOC

Acrobat PDF

PowerPoint PPT

Excel XLS

BLI’s Tested Print Speeds versus Manufacturer’s Rated Speeds

0 50 75 100 125

Excluding First Page

Including First Page

Rated Speed

Pages per Minute

113.84

114.13

99.79

103.79

57

57

Average Speed

25

ColourMonochrome

Print speed is tested using BLI’s Monochrome Test Original with 6% page coverage and BLI’s XLS test document, which consists of colour text and graphics. The test page is printed in a quantity equal to double the vendor’s rated print speed for the device in each mode tested (e.g., if the vendor’s rated print speed is 20 ppm, 40 pages are printed). The unit’s print speeds were tested using the PCL driver.


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Average Print Productivity | Competitive Average

SPEED IN PPM PERCENT OF RATED SPEED

Colour

1:1 43.6 30.3 72.6 76.4

1:2 40.7 27.2 71.4 68.2

BLACK

1:1 45.4 32.6 75.7 79.4

1:2 42.8 29.2 71.3 70.6

Efficiency is tested using a 10-page full-colour document and a 10-page black document. BLI obtains the overall efficiency for each mode by averaging the efficiency ratings (derived by dividing the tested speed of the device by the rated speed and then multiplying by 100) for each run length (1, 5 and 10 sets). The unit’s efficiency was tested using the PCL driver.

First-Set Print Productivity (10-Page File) | Competitive Average


Colour

1:1 30.6 23.3 51.0 59.8

1:2 27.0 19.3 45.0 48.9

BLACK

1:1 34.4 24.7 57.4 60.3

1:2 29.5 21.3 49.2 51.9

Productivity is tested using a 10-page mixed-colour-and-black document and a 10-page black document. Efficiency (percent of rated speed) is derived by dividing the tested speed of the device by the rated speed and then multiplying by 100. Unit tested using the PCL driver.

Job Stream | Competitive Average


Colour 31.5 25.0 52.5 62.2

Black 42.0 29.1 70.0 71.2

Job stream tested with the PCL driver. BLI’s job stream includes Word documents, Outlook email messages, Excel spreadsheets, PowerPoint, HTML and Acrobat PDF files, totalling 19 pages. This test simulates the type of traffic a typical device might experience in a real-world, multi-user environment. All of the files are sent to the device as a group, at which time the stopwatch begins; timing ends when the last page of the last file exits the device. Job stream efficiency is determined by the percentage of the rated speed at which the device operates when producing real-world jobs. The closer the rate is to 100%, or if it exceeds 100%, the more efficient the device.


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EASE OF USE EXCELLENT

BLI technicians were impressed with the Lexmark CS820de’s intuitive touchscreen control panel, uncommon for single-function printers, which features an easy-to-navigate menu system. (U.S. model pictured)

Adjusting the drawers for different size paper is easy; users simply press the tabs of the sliding length and width (slides in sync) guides. There are no corner separators or spring-loaded ramps to hinder access when loading media, and users can even insert paper in any of the lower drawers while the unit is running.

Removing misfeeds from any of the access areas is easy. Consumables don’t have to be removed, and the drums aren’t exposed. Detailed instructions are provided on the display, should guidance be needed.

Replacing toner is a simple and clean procedure. Users open the front panel and grasp the spent cartridge by the large green handle to remove it. New cartridges slide into the colour-coded slots and lock into place.

Because of the ultra-high-yield consumables, Lexmark CS820de users will have to change supplies a lot less frequently than with competitive devices tested to date.


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Projected 36-Month User Interventions (Over 270,000 impressions)

0 50 75 100 125

Tested Model 19

Competitive Average 107

25

User interventions are calculated based on manufacturer’s rated toner yields (in accordance with ISO/IEC 19798), printed in a semi-continuous mode), as well as the manufacturer’s rated yields for other consumables (drums, developer units, waste containers, etc.). BLI calculates the total number of supplies and maintenance parts that would be required to output 270,000 pages (assumes 7,500 pages per month, which is an average volume for this class of device, over three years). Each individual cartridge or other consumable is counted as one intervention, so the black, cyan, magenta and yellow cartridges being replaced once count as four interventions. Long-life maintenance parts, such as fuser kits and rollers, and paper supply replenishments, aren’t included in BLI’s calculations. Depicted scenario is for illustrative purposes only. The actual number of interventions over three years will vary based on a number of factors, including (but not limited to) page coverage, run lengths, usage patterns, periods of inactivity and calibrations performed.

FEATURE SET VERY GOOD

The CS820de’s standard and maximum memory capacities of 1 GB and 3 GB, respectively, are both higher than average compared to the competitive group. The unit also offers an optional 320 GB hard drive, which is a higher than average capac-ity compared to the group. However, some competitors offer lower-capacity stan-dard hard drives.

— The device’s standard paper capacity of 650 sheets is lower than average.

However, its maximum paper capacity of 4,500 sheets is higher than average.

The drawers accommodate media up to 300 gsm, which is among the heaviest of the group.

The bypass accommodates media up to 220 gsm, which is competitive. Bypass capacity of 100 sheets is also competitive.

The CS820de supports the ability to print Microsoft Office documents from USB, which is rare.

The unit also offers an optional internal finisher, while many competitive devices do not have finishing options.

The CS820de supports mobile printing and offers optional NFC technology, which allows users to print with a simple tap of their mobile device to the control panel.


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The device’s output capacity of 500 sheets is competitive.

Lexmark Embedded Solutions Framework (eSF) enables integration with software that can help boost productivity, lower costs, analyse usage patterns, expand func-tionality and move information more efficiently.

SECURITY FEATURES NOT RATED

AUTHENTICATION802.1x wireless OptionalSMTP YesBiometric NoID Card Optional HID Yes Common Access Yes Other Smart CardRegistered department or user ID codes Standard Number 250ACCESS CONTROLRestrict colour StandardControl panel lock/disablement StandardRestrict USB port StandardRestrict direct printing StandardRestrict other Password authenticationHARD DRIVEEncryption Standard Maximum level 256-bitOverwrite Standard Method NIST/DOD/DOE Maximum number after a job 7 Maximum number at end of lease 7Lock StandardRemovable OptionalPassword-protected mailboxes NoData auto-deletion in mailboxes NA

JOB TRACKINGJob logs StandardDigital signature NA Verify document came from device NA Verify document came from specific user NAJOB PROTECTIONEncrypted secure print StandardSecure print StandardUnauthorised scan/copy protection block (watermark) NA Compatible with same-brand devices NA Compatible with third-party devices NA


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NETWORK SECURITY/PROTOCOLSProtocol disablement StandardPort disablement StandardIP address filtering StandardMAC address filtering NoHTTPS Standard Self-signed certificate Yes Certificate signing request YesIPsec StandardIPv6 StandardSecure Sockets Layer (SSL) StandardS/MIME encryption Optional (with CAC solution)SNMPv3 support StandardTransport Layer Security (TLS) StandardTrusted Platform Module (TPM) No (Secure Element Option available)CERTIFICATIONSCommon Criteria Pending EAL level 3 Capabilities certified INAFIPS 140-2 Pending Level 1IEEE 2600 PendingOTHERAdministrator password length Up to 128 alphanumeric charactersPassword-protected web server YesAdditional features NoneThird-party features None

INA: The vendor declined to provide this informationNA: No applicable

ENVIRONMENTAL FEATURES NOT RATED

Specified capable of running 30% post-consumer recycled paper Yes



Instant/Quick Fusing Yes

Duplexing Yes

Toner-save mode Yes

RoHS compliant Yes

Percent of product made from previous devices 0

Percent of product made from post-consumer materials 10

Percent of product made from pre-consumer materials 0

Percent of product made from bio-based materials 0


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Product designed for recycling (easily disassembled, no binding agents) Yes

Items that can be recycled Mylar/films, nylon part, rubber parts and magnets used in motors

Hardware remanufacturing program for this product No

Cartridge recycling program for this product Yes

Prepaid label for return of cartridges/bottles for this unit Yes

Toner recycling system NoAbility to program features such as duplexing and auto shut-off over entire fleet Yes

What tool can be used to do this? Universal Print Driver, MarkVision

Green packaging materials for the product Yes

Green packaging materials for its consumables Yes

Packaging materials usedCorrugated, wood, paper, metal,

plastic HDPE, plastic LDPE Expanded, plastic PP, paper molded pulp

Eco-Label Certifications

ENERGY STAR Yes

OtherECMA-370/The Eco Declaration, Ger-many Blue Angel, Taiwan Green Mark,

EPEAT GoldTested energy consumption levels of the device (watts)

Ready/Idle .16

Energy-save 39.7

Sleep mode 2.7

During Printing 780

How fast can this product be programmed to go into the following modes (seconds)

Ready/Idle Instantly

Energy-Save 60

Sleep mode 60

Can the above settings be programmed by a walk-up user? Yes

First-print time out of sleep mode (seconds) <20

Emissions output from this device for the following substances (mg/h)

Ozone 0.52 (black), 1.2 (colour)

Styrene 0.033 (black), 0.055 (colour)

Benzene <0.012 (black), 0.018 (colour)

TVOC 4.9 (black), 13 (colour)

Dust 1.62 (black), 3.89 (colour)

Other INA

INA: The vendor declined to provide this informationNA: Not applicable

Supplies Cost per Page

France Germany Italy UK

Toner Cost per Page 0,1084 € 0,0865 € 0,1113 € 1.368 p

Toner CPP is based on Lexmark’s web pricing for the cartridge and BLI’s tested yields. Supplies CPP adds web pricing and the rated yield of the imaging unit.


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Test Environment: This product was tested in BLI’s 929-square-metre U.S. test lab, in an environment monitored by an Extech RH S20 Digital RH/Temperature Recorder and Honeywell Model 61 Seven-Day Temperature/Relative Humidity Chart Recorder. All products lab tested by BLI are powered by dedicated circuits that are protected by ESP (Electronic Systems Protection, Inc.) surge protectors to prevent transient power and communication disturbances from impacting equipment under test.

Test Equipment: BLI’s dedicated test network, consisting of Windows 2003 and Exchange servers, Windows 7 workstations, 10/100BaseTX network switches and CAT5 cabling.

Test Duration: Products are tested for two months, a portion of which consists of a durability test during which the product is run at half of its manufacturer-rated maximum monthly volume, with varying daily test volumes designed to replicate real-world use over an eight-hour workday. This variable schedule includes a mix of various-size documents, simplex and duplex modes, and a mix of short, moderate and long run lengths, and on/off cycles, throughout the day.

Tested Configuration: Lexmark CS820de base unit plus optional HCF.

Test Procedures: The test methods and procedures employed by BLI in its lab testing include BLI’s proprietary procedures and industry-standard test procedures, which include a BLI-developed variation of ASTM’s 1318-90 Test Method for Determination of Productivity using Electrostatic Copy Machines. In addition to a number of proprietary test documents, BLI uses an industry-standard KATUN test original for evaluating black image quality and test suites from Quality Logic to evaluate applications compatibility. In addition to a visual observation under a Graphiclite D5000 Standard Viewer, colour print quality is tested using a colour test target, which is read using the X-Rite Eye-One/iO Colour Spectrophotometer, and samples are analysed using the CIE XY Chromaticity Diagram. In addition, density of black and colour output is measured using an X-Rite 500 Series Densitometer. Georgia-Pacific Spectrum Multi-Use Paper is used in the tests, 10 percent of which is recycled paper containing 30 percent post-consumer content. Image quality is tested using Georgia-Pacific Printing Paper.

About Buyers Laboratory LLC: This report is based on BLI testing one representative test sample at a specific point in time. BLI is not responsible for differences in performance that may be the result of lot-to-lot variation, changes in production and machine modifications implemented by the manufacturer, service issues or any other reason beyond BLI’s control. Test unit serial #: 5063538010011.

About Buyers Laboratory LLC: Buyers Laboratory LLC (BLI) is the world’s leading independent provider of analytical information and testing services to the document management industry. For over 50 years, buyers have relied on BLI to help them differentiate products’ strengths and weaknesses and make the best purchasing decisions, while industry sales, marketing and product professionals have turned to BLI for insightful competitive intelligence and valued guidance on product development, competitive positioning and sales channel and marketing support. BLI also offers private, for-hire testing services that help manufacturers develop and market better products and consumables.

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Awarded to

Lexmark International, Inc.for the performance of the

Lexmark CS820de

in BLI’s in-house durability test

March 2016

This is to certify that when subjected to a 125,000-impression Buyers Lab durability test, the Lexmark CS820de proved to be a highly reliable product.