Diagnostic information 2-153
7526
Print quality—blank page
Step Questions / actions Yes No
1 Is all the packing material for the
photoconductor unit in question removed?
Go to step 2. Remove the packing
material.
2
Replace the photoconductor unit for the color
in question.
Does this fix the problem?
Problem resolved. Go to step 3.
3
Enter the Diagnostics mode (turn off the
printer, press and hold 3 and 6, turn on the
printer, and release the buttons when the
clock graphic displays). Perform the
appropriate cartridge drive motor test for the
missing color. See “General motor tests
procedures” on page 3-12.
Did the motor run?
Go to step 5. Replace the EP drive
assembly. See
“Electrophotographic
(EP) drive assembly
removal” on page 4-89.
4
Check the high voltage contact from the
HVPS to the photoconductor charge roll.
Ensure the contact springs are properly
mounted and that the charge roll contact
spring is making good contact with the HVPS
spring that runs through the left printer frame.
Are the spring(s) defective?
Replace the transfer
contact assembly.
Go to step 6.
High voltage
contact path
High voltage
power supply
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