Lexmark X940e Owners Manual

Preventive maintenance6-1
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6.  Preventive maintenance
This chapter describes procedures for printer preventive maintenance. Follow these recommendations to help 
prevent problems and maintain optimum performance.
Safety inspection guide
The purpose of this inspection guide is to aid you in identifying unsafe conditions.
If any unsafe conditions exist, find out how serious the hazard could be and if you can continue before you 
correct the hazard.
Check the following items:...

6-2Service Manual 7510
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DEVELOPER UNITS Transfer 
Developer unit (4) Replace
C developer carrier Replace
M developer carrier Replace
Y developer carrier Replace
K developer carrier Replace
TRANSFER ROLL
2nd Transfer Roll assembly Inspect Replace
TRANSFER BELT UNIT
Transfer belt unit assembly Inspect Replace Damp cloth
Transfer belt cleaning assembly Replace
FUSER UNIT
Fuser Unit Inspect Replace
Sensor (fuser exit) Clean Blower brush
DUPLEX
Duplex Media Transport Roll (2) Clean Water...

Preventive maintenance6-3
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Lubrication specifications
Lubricate only when parts are replaced or as needed, not on a scheduled basis. Use of lubricants other than 
those specified can cause premature failure. Some unauthorized lubricants may chemically attack 
polycarbonate parts. Use IBM no. 10 oil, P/N 1280443 (Approved equivalents: Mobil DTE27, Shell Tellus 100, 
Fuchs Renolin MR30), IBM no. 23 grease (Approved equivalent Shell Darina 1), and grease, P/N 99A0394 to 
lubricate...

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After replacing the kit, the maintenance count must be reset to zero to clear the “80 scheduled maintenance” 
message. 
To reset the maintenance count
1.Turn off the printer.
2.Press and hold the 2 and 6 buttons simultaneously.
3.Turn on the printer.
4.Release the buttons after 10 seconds. The Configuration Menu appears on the LCD.
5.Touch Reset Maintenance Counter from the Configuration Menu. 
6.Reset Maintenance Counter appears in the header, and Yes and No...

Parts catalog7-1
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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.
•FRUs/mach: Refers to the number of FRUs used in the product.
•Units/FRU: Refers to the number of units packaged together and identified by the part number.
•NS:...

7-2MFP Service Manual 7510
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Assembly 1:  Covers 1
Asm- 
indexPart 
numberFRUs/
machUnits/ 
FRUDescription
1 40X0840 3 1 Switch (printer front door interlock)
2 40X0553 3 1 Switch (transfer access door interlock)
3 40X3780 1 1 Right cover assembly
4 40X3778 1 1 Printer front door assembly (this comes assembled)
5 40X3779 1 1 Printhead slit glass cleaning assembly
3
4
1
2
5 

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Assembly 2:  Covers 2
Asm- 
indexPart 
numberFRUs/
machUnits/ 
FRUDescription
1 40X3782 1 1 RIP card access cover
2 40X3781 1 1 Top cover assembly
3 40X3787 1 1 Switch (main power)
4 40X3786 1 1 Main power switch actuator
5 40X3783 1 1 Main switch cable assembly
6 40X3785 1 1 Inner cover
7 40X3784 1 1 Front left cover
4
2
1
3
7
5
6 

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Assembly 3:  Covers 3 
Asm- 
indexPart 
numberFRUs/
machUnits/ 
FRUDescription
1 40X3796 1 1 Rear left upper cover 
2 40X3793 1 1 Rear left middle cover 
3 40X3795 1 1 Left front cover
4 40X3794 1 1 Rear left lower cover
5 40X3788 1 1 Rear blind cover
6 40X3789 1 1 Rear cover assembly 110 V
6 40X3790 1 1 Rear cover assembly 220 V
3
5
2
6
4
1 

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Assembly 4:  PC cartridge and developer drive
Asm- 
indexPart 
numberFRUs/
machUnits/ 
FRUDescription
1 40X3671 4 1 Developer idler gear assembly
2 40X3669 1 1 CMY developer drive motor assembly
3 40X3670 1 1 Developer/transport drive motor assembly
4 40X3672 1 1 MPF/transport drive motor assembly
5 40X3667 1 1 CMYK PC cartridge drive motor assembly
6 40X3668 1 1 Transfer belt drive motor assembly
1111
3
5
2
6
4 

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Assembly 5:  ID sensor and transfer belt steering
Asm- 
indexPart 
numberFRUs/
machUnits/ 
FRUDescription
1 40X3674 1 1 Image density sensor assembly
2 40X3673 1 1 Transfer belt steering motor
2
1