Ricoh A109 Service Manual page 268

SC383: V adjustment error
L
- Definition - [D]
When performing the process control self-check, V
within 5 V of the target after 30 trials. The previous data for V
used in this case. If there is no previous data, the default is used.
<Possible causes>
•
LD drive board defective
•
IPU board defective
SC384: LD exposure abnormal
- Definition - [D]
When performing the process control self-check, the potential of the 10
gradation patterns does not come within the target range.
<Possible causes>
•
LD drive board defective
•
IPU board defective
SC390: ID sensor adjustment error
- Definition - [D]
When performing the process control self-check, Vsg adjustment does
not result in 4.0 ± 0.2 V.
<Possible causes>
•
ID sensor defective
•
Main control board defective
•
ID sensor too dirty
SC422: PCC leak
- Definition - [B]
PCC leak signal is detected for more than 3 seconds.
<Possible causes>
•
PCC end block damaged
•
High voltage supply board - T1/PCC/BR defective
FSM
does not come
L
6-13
, V , I is
G B LD
A109