Lexmark C760 Service Manual

Parts catalog7-73
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Assembly 36:  Banner option
Asm-
index Part 
number
Units Description
36–1 56P2894 1 Banner input assembly 

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Assembly 37:  Options 

Parts catalog7-75
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Assembly 37: Options
Asm-
index Part 
number
Units Description
NS 12G6509 1 64MB SDRAM card assembly
NS 56P9910 1 128MB SDRAM card assembly
NS 56P9911 1 256MB SDRAM card assembly
NS 56P2223 1 512MB SDRAM card assembly
NS 56P1417 1 16MB Flash DIMM card assembly
NS 56P1418 1 32MB Flash DIMM card assembly
NS 56P1430 1 Traditional Chinese font DIMM card assembly
NS 56P1429 1 Simplified Chinese font DIMM card assembly
NS 56P1437 1 Adapter, parallel 1284-B
NS 56P9982 1 Hard Disk,...

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Assembly 38:  Miscellaneous
Asm-
indexPart 
number
Units Description
NS 1 Screw type 323, parts packet 12G6309
NS 1 Screw type 324, parts packet 12G6530
NS 1 Screw type 232, parts packet 12G6531
NS 1 Screw type 102, parts packet 12G6532
NS 1 Screw type 312/322/412/423, parts packet 12G6533
NS 1 Screw type 484, parts packet 12G6534
NS 1 Screw, 500-sheet tray, parts packet 12G6538
NS 1 Screw type 124, parts packet 12G6539
NS 1 Screw type 121, parts packet 12G6540
NS 7371549...

Appendix A—Service tipsA-1
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Appendix A—Service tipsA
Printhead diagnostics
If you get a printhead error, follow this diagnostic to find the specific failure. 
1.Verify all the printhead cables are properly seated.
If the printhead cables are properly seated and the error remains, record the error code. Continue to the 
next step.
2.Determine how to setup the printhead diagnostic tool.
a.Verify the printhead diagnostic tool is configured as in following illustration. Reconfigure if necessary....

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3.Install the printhead diagnostic tool and determine the problem.
The following procedure shows the yellow and cyan switch as an example.
a.Turn off the printer.
b.Unplug the printhead cables from the system board and connect them to the printhead diagnostic 
tool.
c.Connect the printhead diagnostic tool cables to the connectors on the system board. This reverses 
the printhead color signals for the selected pair of colors. 

Appendix A—Service tipsA-3
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d.Turn on the printer and note the new error codes.
 If an automatic calibration begins,  36 Printer Service Required may appear. The printhead and 
system board are working correctly and the printhead cable connections should be checked. 
Press  Go to clear the error.
 If the error code remains the same, replace the  “System board”. If that solves the problem, you 
are finished.
 If the printer displays a different printhead error code, which indicates another...

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Identifying the printheads
Warning:  Do not loosen or remove all printheads at the same time. If all printheads are loosened or removed, 
your reference to readjust will be lost.
Notes :
Whenever a printhead is removed, it is necessary to perform the  “Printhead mechanical alignment” and 
“Printhead electronic alignment” .
The front cover must be installed and closed before any printhead alignment can be performed. It is not 
necessary to remove the cover to access the...

Appendix A—Service tipsA-5
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System board cabling reference
See “System board - non-network” on page 5-6  or “System board - network” on page 5-7  for connections. 
Refer to the System board wiring diagram for additional details. 

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Redrive belt routing
If the redrive belt has been removed, use the diagram and information to properly route the belt. The idler gear 
roller in these photos is only visible because the printer has been disassembled to the frame. The gear will have 
to be located by feel to ensure proper installation.
Redrive gear (A) and auto tension gear (B) properly routed.
Redrive belt properly routed on the idler gear (C) and the roller (D).
Redrive belt properly routed on the...