Lexmark C746n User manual

Lexmark™C746n, C746dn, C746dtn,

C748e, C748de, C748dte

5026-3xx, 5xx

• 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.

Revised: April 19, 2012

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Parts catalog 7-1

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7. Parts catalog

How to use this parts catalog

The following legend is used in the parts catalog:

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

and 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/option: Refers to the number of units in a particular option. It does not include the rest of the base

machine.

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

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

illustration.

•Model information used in the parts catalog:

Asm-

index Part

number Units/mach Units/

FRU Description

Abbreviation

used Machine type

and model Printer name Description

310 5026-310 Lexmark C746n Network-ready

330 5026-330 Lexmark C746dn Network-ready with duplex

330 5026-330 Lexmark C746dtn Network-ready with duplex and 550 sheet

tray

510 5026-510 Lexmark C748e Network-ready with etask touch screen

530 5026-530 Lexmark C748de Network-ready with etask touch screen and

duplex

530 5026-530 Lexmark C748dte Network-ready with etask touch screen,

duplex, and 550 sheet tray

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7-2 Service Manual

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Assembly 1: Covers (C746)

16 17

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Parts catalog 7-3

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Assembly 1: Covers (C746)

Index P/N Units/

mach Units/

FRU Description

1—1 40X7520 1 1 Top access cover assembly, 2.3 inch

2 40X7660 1 1 2.3 inch operator panel buttons parts package

Includes the following:

•Button kit

•Sleep button

•Return button

•Select button

•Navigation button

•Home button

•LED Lens

3 40X5121 1 1 Bin full sensor with cable

4 40X7603 1 1 2.3 inch operator panel assembly with card

Includes the following:

•LCD Display

•UICC card

5 40X7966 1 1 Top access cover parts package

Includes the following:

•Bin full flag

•Operator panel display bracket

6 40X5106 1 1 Output bin extension cover

7 40X5103 1 1 Rear upper cover

8 40X5993 1 1 Top cover assembly

9 40X5287 1 1 Cooling fan filter

10 40X5145 1 1 Rear frame cover

11 40X5105 1 1 Rear right cover

12 40X5153 1 1 Dust cover assembly

13 40X5104 1 1 Rear left cover

14 40X5994 1 1 Right cover

15 40X7661 1 1 Front access door cover assembly

16 40X5102 1 1 Left cover

17 40X5119 1 1 Top access cover links (slider cam)

Note: The left link is also available in the top access cover assembly and

the right link is also available in the EP drive assembly

18 40X8317 1 1 Operator panel bezel, C74x (blank logo)

18 40X6879 1 1 Operator panel bezel, C746n

18 40X7335 1 1 Operator panel bezel, C746dn and C746dtn

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7-4 Service Manual

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Assembly 2: Covers (C748)

19 18

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Parts catalog 7-5

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Assembly 2: Covers (C748)

Index P/N Units/

mach Units/

FRU Description

2—1 40X5988 1 1 Top access cover assembly, 4.3 inch

2 40X5990 1 1 4.3 inch operator panel buttons parts package

Includes the following:

•Button kit

•Home button

•Sleep button

•LED Lens

3 40X5121 1 1 Bin full sensor with cable

4 40X5989 1 1 UICC card

5 40X7116 1 1 4.3 inch LCD display

6 40X7966 1 1 Top access cover parts package

Includes the following

•Bin full flag

•Operator panel display bracket

7 40X5106 1 1 Output bin extension cover

8 40X5103 1 1 Rear upper cover

9 40X5993 1 1 Top cover assembly

10 40X7703 1 1 Speaker

11 40X5287 1 1 Cooling fan filter

12 40X5145 1 1 Rear frame cover

13 40X5153 1 1 Dust cover assembly

14 40X5105 1 1 Rear right cover

15 40X5994 1 1 Right cover

16 40X7661 1 1 Front access door cover assembly

17 40X5104 1 1 Rear left cover

18 40X5119 1 1 Top access cover links (slider cam)

Note: The left link is also available in the top access cover assembly and

the right link is also available in the EP drive assembly

19 40X5102 1 1 Left cover

20 40X8317 1 1 Operator panel bezel, C74x (blank logo)

20 40X6877 1 1 Operator panel bezel, C748de

20 40X8259 1 1 Operator panel bezel, C748e

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7-6 Service Manual

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Assembly 3: Front

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Parts catalog 7-7

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Assembly 3: Front

Index P/N Units/

mach Units/

FRU Description

3—1 40X8110 1 1 Fuser assembly, 115 V

1 40X8111 1 1 Fuser assembly, 230 V

1 40X8112 1 1 Fuser assembly, 100 V

2 Printer pad, included in screws parts packet (P/N 40X5136)

3 40X1446 1 1 Right bellcrank assembly, with spring

4 40X5132 1 1 MP feeder/duplex drive parts packet

Includes the following

•Retainer release arm

•Grease packet (Nyogel 744)

•Washer

•Duplex engagement gear

•MP feeder reduction gear

•MP feeder/duplex reduction gear

•MP feeder drive cover

5 40X6319 1 1 Cranklift spring and metal clip

6 40X8308 1 1 Paper pick assembly

7 40X5152 2 2 Pick arm roll

8 40X5999 1 1 Paper tray assembly, 550-sheet

9 40X6496 1 1 MPF pick arm assembly

10 40X5111 1 1 Front door parts packet

Includes the following:

•A—Front access door cap (1)

•B—Right cable assembly (1)

•C—Front access cover pivot (1)

•D—Left cable assembly (1)

•E—Front access door straps (2)

•F—Front access door bracket (1)

•G—Screw

11 40X5113 1 1 Duplex reference edge assembly

12 40X5995 1 1 Front door assembly

13 40X8307 1 1 Transfer module

14 40X1447 1 1 Left bellcrank assembly, with spring

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7-8 Service Manual

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Assembly 4: Right

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Parts catalog 7-9

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Assembly 4: Right

Index P/N Units/

mach Units/

FRU Description

4—1 40X5290 1 1 EP drive assembly

2 40X5991 1 1 Low-voltage power supply

3 40X5126 1 1 Motor driver card

4 40X8309 1 1 MP feeder/duplex motor

5 40X5128 1 1 24 V interlock switch

6 40X5127 1 1 5 V interlock switch

7 40X5998 1 1 MPF paper present sensor with cable

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