Ricoh B234 - Page 29

SERVICE CALL CONDITIONS
SM 4-27 B234/B235/B236/D101/D102/D103
Trouble-
shooting
Toner Transport Unit Error
SC494 B
One of the following has
occurred during toner transport
from the toner bank to the toner
supply cylinder:
• An obstruction (clumped
toner, other foreign material)
is blocking the toner supply
coil
• The coil torque limiter is
broken
• Toner bottle end sensor is
broken
• Cycle the machine off/on
• Clean the toner transport coil, tubing,
toner supply clutch, torque limiter
• Defective toner supply coil
• Defective toner supply tube
• Defective toner supply clutch
• Defective torque limiter
Toner Bottle Unit Error
SC495 B
During toner transport from
the toner supply cylinder to
the toner hopper, the toner
hopper sensor cannot detect
toner even after the toner
supply pump switches on for
2 s and switches off 10 times
during copying.
• Toner supply pump motor harness,
connector loose, broken, defective
• Toner supply pump motor defective
• Blockage in the toner supply tube
• Toner supply tube disconnected
• Blockage in the toner supply cylinder
• Toner-end sensor in the toner supply
cylinder defective
• Agitator in the toner supply cylinder
defective
• Toner supply cylinder agitator motor
defective
Toner Collection Bottle Error
SC496 B
The toner collection bottle
sensor set sensor remained
off for 3 s.
• Used toner collection bottle is set incorrectly
• Used toner collection bottle harness,
connector loose, broken, defective
Development Unit Toner Suction Bottle Error
SC497 B
During machine operation,
the development unit toner
suction bottle set sensor
goes off for 3 s.
• Toner suction bottle is not installed
• Toner suction bottle set sensor connector is
loose, broken, defective
1st Tray Lift Mechanism
SC501 D
One of the following conditions is detected
in the 1st tray (tandem tray) of the main
machine:
• The 1st tray lift sensor is not activated for
10 s after the 1st tray lift motor turned on.
• Upper limit is not detected within 10 s
while the paper tray is lifting during paper
feed.
• The 1st tray lift sensor is already
activated when the 1st tray is placed in
the machine.
• Poor 1st tray lift motor
connection
• Remaining paper or another
obstruction has stopped the
tray and motor
• 1st pick-up solenoid
connector is loose
• 1st pick-up solenoid is
blocked by an obstruction