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Lexmark C760 User Manual

Lexmark C760
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2-132 Service Manual
5060-4xx
Missing colors—Complete or partially missing color planes
If a color or colors are missing, or a color is partially missing, go to “If cyan, magenta, and yellow is
missing, go to “Black and white only—cyan, magenta, and yellow are missing” on page 2-133.” on
page 2-132.
If cyan, magenta, and yellow is missing, go to “Black and white onlycyan, magenta, and yellow are
missing” on page 2-133.
Step Action and questions Yes No
1 Print cartridge - Make sure the cartridge is seated
properly and that all packing material has been
removed from the cartridge.
Has all packing material been removed? Is the
cartridge seated correctly?
Go to step 2 Remove
packaging and
seat cartridge
2
Inspect each of the transfer roll bellcranks.
Were any of the bellcranks broken?
Replace the
broken bell
cranks.
Go to step 3
3
Perform the partial print test. See “Partial Print Test
on page 3-6.
Is the image well developed on the PC drum but the
same plane is missing or faded on the ITU belt?
Go to step 4 Go to step 6
4
Turn off the printer. Check the cable connections
between the transfer HVPS board and the system
board.
Does the issue persist?
Go to step 5 Problem resolved
5
Check continuity on the cable between the respective
rear bellcrank and the lead on the transfer HVPS
board.
Is there continuity?
Replace in the
following order:
1. Transfer
HVPS
board” on
page 4-73
2. “Cartridge
contact
assembly”
on page 4-29
3. “System
board” on
page 4-72.
Replace the
FRUs in the
following order:
1. Cable
2. FTR spring.
6
Change or switch failing cartridge.
Does the issue persist?
Go to step 7 Replace the
cartridge.
7
Cartridge contact assembly - Check the cartridge
contact block. Make sure the PC drum contact pin is
not stuck. See “Cartridge contact assembly pin
locations (cyan, magenta and yellow)” on page 5-4
to identify the PC drum contact pin.
Does the pin operate correctly?
Go to step 8 Replace the
“Cartridge
contact
assembly” on
page 4-29.

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Lexmark C760 Specifications

General IconGeneral
BrandLexmark
ModelC760
CategoryPrinter
LanguageEnglish

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