Ricoh B234 - Page 22

SERVICE CALL CONDITIONS
B234/B235/B236/D101/D102/D103 4-20 SM
Charge Corona Error 2: Grid Leak
SC304 B
A high feedback voltage (H) for
the charge corona 60 ms. Also,
during this time, the voltage of
the charge grid remained less
than –400V
• Cycle the machine off/on
• Charge unit set incorrectly (not locked in
place)
• Charge unit connector loose, broken,
defective
Charge Corona Wire Cleaner Error 1
SC305 C
One of these occurred after the charge
corona cleaner motor was switched on:
• The charge corona wire cleaner motor
remained locked within 10 sec after the
motor switched on.
• The charge corona wire cleaner motor
failed to lock within 45 s after the start of
cleaning.
• Cycle the machine off/on
• Charge corona wire cleaner
motor defective
Charge Corona Wire Cleaner Error 2
SC306 D
The cleaning pad of the charge
corona wire cleaner mechanism
failed to return to its home
position.
• Connectors between motor and IOB
loose, broken, defective
• Charge wire dirty, defective, broken
• Wire cleaning pad defective
• Motor or motor board in motor unit
defective
Pre-Charge Output Error 1: Leak
SC312 C
An abnormal signal (H) was
detected continuously for 60 ms.
During this time the pre-charge
unit voltage remained less than
–3 kV for more than 50 ms.
• Pre-charge unit set incorrectly.
• Pre-charge unit contact is broken or
defective.
Pre-Charge Output Error 1: Grid Output
SC313 C
An abnormal signal (H) was
detected continuously for 60 ms.
During this time the pre-charge
grid voltage remained less than
–400V for more than 50 ms.
• Pre-charge unit set incorrectly
• Pre-charge unit contact is broken or
defective
Development Bias Error
SC320 B
An abnormal detection signal (H)
was detected continuously for 60
ms. During this time the voltage
exceeded –90µA for more than
50 ms.
• Development power pack connectors
loose, broken, defective
• Development unit connectors loose,
broken, defective
• Development power pack defective