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Lexmark C760 - Black and White Only-Cyan, Magenta, and Yellow Are Missing; Light Print over the Entire Page

Lexmark C760
466 pages
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Diagnostic information 2-133
5060-4xx
Black and white only—cyan, magenta, and yellow are missing
Light print over the entire page
If all colors have light print, go to “All colors have light print over the entire page” on page 2-133.
If only one color has light print, go to “One color has light print over the entire page” on page 2-134.
All colors have light print over the entire page
8
Perform a continuity check on the developer HVPS
cable.
Does the cable check out?
Replace in order:
1. Developer
HVPS board.
See
“Developer
HVPS
board” on
page 4-31.
2. System
board. See
“System
board” on
page 4-72.
Replace the
developer HVPS
cable.
Step Action and questions Yes No
1 Check the Print Mode setting in the Color Menu.
Is the Print Mode set to Black &White?
Change the
setting to Color.
Go to step 2
2
Ask the user or network administrator to check if the
correct color driver is installed.
Is the correct color driver installed
Install the correct
color driver.
Go to “Black
only retract
(BOR) service
check” on
page 2-109.
Step Action and questions Yes No
1 Replace the “Second transfer roll” on page 4-71.
Does the light print persist?
Go to step 2 Problem resolved
2
Turn the printer off. Check the cable connections
between the transfer HVPS board and the system
board.
Go to step 3 Problem resolved
3
Check continuity on the cable between the rear second
transfer roll arm and the 1 lead on the transfer HVPS
board.
Replace the
“Transfer HVPS
board” on
page 4-73.
Check the
connection at the
second transfer
roll arm.
Step Action and questions Yes No

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