2-152 Service Manual
7526
An incorrect printer driver for the installed software can cause problems. Incorrect characters could print, and
the copy may not fit the page correctly.
Measure all voltages from the connector to the printer ground.
Print quality—background
Service tip: Some background problems can be caused by rough papers, non-Lexmark toner cartridges or if the
media texture is set to the rough setting.
Some slick or coated papers may also cause background problems. Some problems occur with printers that run
a large amount of graphics in a humid environment.
Step Questions / actions Yes No
1 Read the current status of the photoconductor
unit from the customer menus.
To view the status of the photoconductor
units:
1. In Ready mode, touch Admin Menu.
2. Touch Reports.
3. Touch Device Statistics.
Ask the customer if the photoconductor unit
has been recently replaced. It is possible the
photoconductor value was not reset and the
photoconductor unit is past end of life. If the
PC unit was recently replaced, reset the
value. If the PC unit was not replaced, replace
the PC unit.
Has the photoconductor unit been recently
replaced?
Reset the value. To reset
this value:
1. In Ready mode, touch
Admin Menu.
2. Touch Supplies Menu.
3. Touch Replace
Supply.
4. Select the PC color unit
you want to change
5. Touch Yes.
If this does not fix the
problem, go to step 2.
Go to step 2.
2
Replace the PC unit. See “Photoconductor
unit removal” on page 4-137.
Does this fix the problem?
Problem resolved. Go to step 3.
3
Check the high voltage contact from the
HVPS to the transfer module.
Is a problem found?
Replace the spring or the
transfer contact assembly.
Go to step 4.
4
Reseat the JHVPS connector.
Does this fix the problem?
Problem resolved. Go to step 5.
5
Replace the HVPS. See “High-voltage
power supply (HVPS) removal” on
page 4-110.
Does this fix the problem?
Problem resolved. Go to step 6.
Transfer belt high voltage
path (typical 4X)
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