Ricoh D096 Service Manual page 199

Laser synchronization error
The main scan
synchronization detector
322 B
board cannot detect the
laser synchronization signal
for more than 5 consecutive
100 ms intervals.
TD sensor error
The TD sensor outputs less
390 B
than 0.2 V or more than 4.0
V 10 times consecutively
during copying.
Development bias leak
391 B
A development bias leak
signal is detected.
TD sensor initial setting error
392 B
TD sensor initial setting is
not performed correctly.
SM Appendix
Service Call Conditions
Poor connection between the LD unit
and the BICU board
Damaged cable between BICU and LD
unit
LD unit out of position
LD unit defective
BICU board defective
TD sensor abnormal
Poor connection of the PCU
Poor connection of the PCU
High voltage supply board defective
ID sensor defective
No developer
Drum does not turn
Development roller does not turn
Poor connection of the PCU
The voltage is not applied to charge
roller
3-5 D096