Heavy Background - Dell 1710n - Laser Printer B/W Service Manual

Heavy background

Poor development or poorly charged toner particles cause excessive
background. This is more noticeable as the toner cartridge nears end–of–
life.
FRU
Toner cartridge (not a
FRU)
PC Kit (not a FRU)
LVPS/HVPS
Controller card
Partial blank image/white spots (no repeating pattern)
FRU
Toner cartridge (not a
FRU)
Paper (not a FRU)
Action
Make sure the toner cartridge and PC Kit are
correctly installed and the high voltage contacts
are clean.
If the toner cartridge and PC Kit are installed
correctly, try a new PC Kit first and then toner
cartridge.
Check the contacts for correct installation and
contamination where contact is made between
the print cartridge assembly and LVPS/HVPS
board. Clean as necessary.
If this does not correct the problem, replace the
following FRUs one at a time in the order
shown:
• LVPS/HVPS board
• Controller card
Action
Remove the toner cartridge assembly, and
gently shake the assembly to evenly distribute
the toner.
If toner cartridge is low, try a new one.
Make sure recommended paper is being used.
Diagnostics—all models
2-101