Lexmark W850n User manual

Lexmark™ W850n and W850dn Printer

4024-110

• Table of contents

• Start diagnostics

• Safety and notices

• Trademarks

• Index

Lexmark and Lexmark with diamond design are

trademarks of Lexmark International, Inc., registered

in the United States and/or other countries.

Revision: January 7, 2010

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Parts catalog 7-1

4024-110

7. Parts catalog

How to use this parts catalog

The following legend is used in the parts catalog:

•Assembly-index: Identifies the assembly and the item in the diagram. For example, 3-1 indicates

Assembly 3 and the item number 1 in the table.

•Part number: Identifies the unique number that identifies this FRU.

•Units/mach: Refers to the number of units actually used in the base machine or product.

•Units/kit or pkg: Refers to the number of units packaged together and identified by the part number.

•NS: (Not shown) in the assembly-Index column indicates that the part is procurable but is not pictured in

the illustration.

•PP: (Parts Packet) in the parts description column indicates the part is contained in a parts packet.

Assem

bly-

Index

Part

number Units/mach Units/

kit or

pkg Description

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7-2 Printer Service Manual

4024-110

Assembly 1: Covers and operator panel (1 of 2)

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Parts catalog 7-3

4024-110

Assembly 1: Covers and operator panel (1 of 2)

Assembly

- Index Part

number Units/

mach Units/kit

or pkg Description

1-1 40X5566 1 1 Operator panel assembly

2 40X5561 1 1 Operator panel controller card

3 40X5563 1 1 Operator panel cable

4 40X5564 1 1 Operator panel USB cable assembly

5 40X0553 1 1 Switch (printer front door interlock)

6 40X0558 1 1 Top cover assembly

7 40X5565 1 1 Printer front door cover assembly

8 40X0560 1 1 Front door magnetic catch

9 40X0561 1 1 Front door support strap

10 40X0562 1 1 Front inner cover

11 40X0960 1 2 2TM/TTM retaining screws

12 40X0551 1 1 Front left cover

13 40X0550 1 1 Left lower cover

14 40X0552 1 1 Top rear cover

Warning: In the event of replacement of any one of the following components:

• Operator panel assembly

• RIP card assembly

Replace only one component at a time. Replace the required component, and perform a POR before replacing a second

component listed above. If this procedure is not followed, the printer will be rendered inoperable. Never replace two or

more of the components listed above without a POR after installing each one or the printer will be rendered inoperable.

Warning: Never install and remove components listed above as a method of troubleshooting components. Once a

component has been installed in a machine, it cannot be used in another machine. It must be returned to the manufacturer.

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7-4 Printer Service Manual

4024-110

Assembly 2: Covers

Assembly

- Index Part

number Units/

mach Units/kit

or pkg Description

2–1 40X0566 1 1 Rear motor cover

2 40X2382 1 1 TVOC filter assembly

3 40X0565 1 2 Cable hookup door kit includes:

• Cable hookup cover

• Cable hookup door

4 40X0568 1 1 Option hookup cover

5 40X0567 1 1 Rear lower cover (110 V)

5 40X0955 1 1 Rear lower cover (220 V)

6 40X0564 1 1 Right lower cover

7 40X0563 1 1 Right upper cover

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Parts catalog 7-5

4024-110

Assembly 3: Media feed unit

Assembly

- Index Part

number Units/

mach Units/kit

or pkg Description

3-1 40X0570 2 1 Switch (media size)

2 40X0569 2 3 Media tray catch kit includes:

• Media tray catch

• Media tray slide (2 each)

3 40X0572 1 1 Vertical turn guide

4 40X0571 1 1 Vertical turn mylar guide

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7-6 Printer Service Manual

4024-110

Assembly 4: Media feed unit exploded (tray 1 and tray 2)

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Parts catalog 7-7

4024-110

Assembly 4: Media feed unit exploded (tray 1 and tray 2)

Assembly

- Index Part

number Units/

mach Units/kit

or pkg Description

4–1 40X0581 2 1 Media feed unit assembly

2 40X0582 2 1 Media feed lift motor

3 40X0585 2 6 Media feed drive gear kit includes:

• Media feed unit drive gear 13T

• Media feed unit drive gear 28/21T

• Media feed unit drive gear 29T

• Media feed unit drive gear 27T

• 2 mm washer (2 each)

4 40X0880 2 1 Bushing 6 mm

5 40X0967 2 2 Media tray lift one-way clutch/gear kit includes:

• Media tray lift one-way clutch

• Media tray lift one-way gear

6 40X0968 2 1 Media tray lift one-way shaft

7 40X0583 2 3 Tray lift coupling kit includes:

• Tray lift coupling

• Tray lift coupling gear 31T

•Spring

8 40X0590 2 1 Pick roll assembly spring

9 40X0593 2 2 Separation roll friction clutch kit includes:

• Separation roll one-way friction clutch

• Separation roll spacer

10 40X0594 1 6 Feed unit roll kit includes:

• Feed roll (2)

• Pick roll (2)

• Separation roll (2)

11 40X0970 2 1 Pick roll drive gear

12 40X0969 2 1 Pick roll idler gear

13 40X0591 2 2 Feed roll one-way clutch kit includes:

• Feed roll one-way clutch

• Feed roll one-way gear 22T

14 40X0952 2 1 Bushing 6 mm

15 40X0586 2 2 Media feed unit front guide kit includes:

• Media feed unit front guide

• Media feed unit front guide rail

16 40X0587 2 1 Media out actuator

17 40X0588 2 1 Sensor (media out)

18 40X0588 2 1 Sensor (media level)

19 40X0589 2 1 Sensor (pre-feed)

Note: Assembly index items 17 and 18 are identical sensors with different functions; therefore, they are the same part

number with different descriptions.

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7-8 Printer Service Manual

4024-110

Assembly 5: Media tray

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Parts catalog 7-9

4024-110

Assembly 5: Media tray

Assembly

- Index Part

number Units/

mach Units/kit

or pkg Description

5–1 40X0573 2 3 Media tray assembly includes: (this comes assembled)

• Media tray assembly

• Labels (2 each)

2 40X0578 2 2 Media tray end guide kit includes:

• Media tray end guide

• Spring

3 40X0577 2 3 Media tray side guide actuator kit includes:

• Media tray side guide actuator

• Media tray side guide slide

• Spring

4 40X0576 2 5 Media tray side guide kit includes:

• Media max label

• Front media tray guide assembly

• Rear media tray guide

• Pinion gear (2 each)

5 40X0966 4 1 Media tray separation brush

6 40X0574 2 1 Media tray front cover includes:

• Media tray front cover

• Labels (2 each)

7 40X0579 2 2 Media tray end guide actuator kit includes:

• Media end guide actuator

• Actuator link

Note: The graphic on the previous page, shows two #7 callouts. These

callouts are the two items that make up the media tray end guide

actuator kit.

8 40X0580 2 3 Media tray lift gear kit includes:

• Tray lift coupling gear 13T

• Tray lift gear 13/60T

• Tray lift sector gear 12T

9 40X0965 2 1 Media tray separation pad

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