Ricoh BE-C1 D046 Field Service Manual page 489

Group 300: Charge, Development
Charge corona output error
Charge corona feedback voltage less than 0.5 V was detected for more than 200
sec after power on.
SC300 D
• TD power pack defective.
• High voltage cable defective.
• Dirty charge corona wire caused voltage leak
Charge grid output error
Control PWM duty value is higher than 1% (FB less than 1V) for more than 200 ms
due to grid current leak.
SC303 D
• CGB power pack is defective.
• CGB power pack harness loose, broken, defective
Charge corona wire cleaner error
The wire cleaning pad did not return to its home position within 5 sec. after wire cleaning.
• Wire cleaner motor harness loose, broken, defective
• Wire cleaner motor defective
SC305 D
• Charge corona wire defective
Note:
• This SC is not issued if SP2804 is set to zero (no cleaning).
• If immediate repair is not possible, set SP2804 to zero to switch off the charge
corona cleaner function.
Development drive motor lock error
Development drive motor stopped (the lock signal remained HIGH longer than 5 sec.
when the development was operating).
SC347 D
• Motor or drive mechanism blocked
• Motor harness loose, broken, defective
• Motor defective
SC Tables
5
41