2-50 Service Manual
7562
Solid color or black pages
• MAKE SURE THE PRINT CARTRIDGES ARE INSTALLED CORRECTLY, ARE NOT DEFECTIVE AND
NOT LOW ON TONER
Remove and reinstall the print cartridges.
Service tip: A solid color page is generally caused by a problem in the high voltage system or an incorrect high
voltage in the printing process resulting in toner development on the entire photoconductor drum.
Additional checks—solid color or black pages
Step Questions / actions Yes No
1 Replace the print cartridge for the color in question.
Does this fix the problem?
Problem solved. Go to step 2.
2
Check the high voltage contact from the HVPS to the
cartridge. See “Cartridge contact block assembly
removal” on page 4-38.
Are the spring(s) defective?
Replace the
cartridge
contact block
assembly.
Go to step 3.
3
Turn the printer off, and then check the continuity of the
HVPS cable. See “High-voltage power supply
(HVPS) board removal” on page 4-67.
Is there continuity?
Go to step 4. Replace the
cable assembly.
4
Replace the HVPS. See “High-voltage power supply
(HVPS) board removal” on page 4-67.
Did this solve the problem?
Problem solved. Replace the
system board.
See “System
board
removal” on
page 4-149.
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