Ricoh infoprint 1222, Service Manual

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Service Manual
Infoprint 1222
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 Action
Toner Cartridge (not a FRU) Make sure the toner cartridge is
correctly installed and the high
voltage contacts are clean.
If the cartridge is installed correctly
and the problem persists, try a new
cartridge.
HVPS Contacts
HVPS Card
RIP Card Assembly
Cartridge Contacts Assembly Check the contacts for correct
installation and contamination where
contact is made with the toner
cartridge and HVPS card. Clean as
necessary.
If this does not correct the problem,
replace the following FRUs one at a
time in the order shown:
• HVPS card
• RIP card assembly
Note: Always check printhead
alignment after replacing the RIP
card assembly. See
“Printhead
Assembly Adjustment” on
page 4-2
for hardware alignment
of the printhead.