Ricoh B173 Service Documentation page 113

Fault
Ghost & Image
• The printed
Contamination
• Totally
• The density of
SM
Signs Cause & Check
1. The printed image is
too light or dark, or
image is too
partially contaminated
light or dark,
black.
or partially
• Check whether
contaminated
black. foreign sub-stance or
toner is stuck to the
terminal (point of
contact) of the
contaminated-
cartridge.
black. (Black
image printed • Check whether the
out) terminal assembly is
normal.
printouts is too
dark and ghost
occurs.
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.)
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.)
4-47
TONER CARTRIDGE (AIO) SERVICE
Solution
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. 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.
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.
B173