Ricoh AC104, Service Documentation

Page: 113 / 160

TONER CARTRIDGE (AIO) SERVICE
SM 4-47 B173
Trouble-
shooting
Fault
Signs Cause & Check Solution
1. The printed image is
too light or dark, or
partially contaminated
black.
•
Check whether
foreign sub-stance or
toner is stuck to the
terminal (point of
contact) of the
cartridge.
•
Check whether the
terminal assembly is
normal.
1. All of 1, 2, 3 -
(1) Remove toner and
foreign sub-stances
adhered to the
contact point of the
cartridge.
(2) The contact point
of the unit facing that
of the cartridge also
must be cleaned.
(3) If the terminal
assembly is unsafe:
• Fully stick the
terminal to or
reassemble it after
disassembling.
•
Disassemble the
side plate and push
the terminal to be
stuck, then
reassemble it.
2. Totally contaminated
black. (Black image
printed out)
•
Check whether
foreign sub-stances
are stuck to the
terminal ( point of
contact) of the
cartridge and the
state of assembly.
(Especially check the
charged roller
terminal.)
2. In case of 2 -
it is a phenomenon
when the OPC drum
of the cartridge is not
electrically charged.
Clean the terminals of
the charged roller,
then recheck it.
Ghost & Image
Contamination •
The printed
image is too
light or dark,
or partially
contaminated
black.
•
Totally
contaminated-
black. (Black
image printed
out)
• The density of
printouts is too
dark and ghost
occurs.
3. The printed image is
dark and ghost occurs.
• Check foreign
substance attached
to the terminal (point
of contact) of the
developer and the
state of assembly.
(Especially check the
developing roller
terminal.)
3. In case of 3
it is a phenomenon
as the developing
bias voltage of the
cartridge. Clean the
terminals of the
developing roller,
then recheck it.