Ricoh M281 Series Service Manual page 454

Service Call 303-396
6.4 SERVICE CALL 303-396
6.4.1 SC300 (ENGINE: IMAGING 1: CHARGE, DEVELOPMENT)
SC No. Type
SC303-00 D
SC No. Type
SC321-00 C
D255/D256/M281/M282
Error Name/Error Condition/Major Cause/Solution
Charger Current Error
When the charging voltage is applied by changing the voltage in
three levels, the current value is less than 20uA in one of three
levels.

Connector defective or disconnected

Power pack defective

IOB defective

Connector defective or disconnected
Reconnect the following connectors. Then perform a
conduction inspection. If there is no conduction, replace the
connector.

Drum Unit – Power Pack connector

Power Pack – IOB connector

Power pack defective
Replace the power pack.

IOB defective
Replace the IOB.
Error Name/Error Condition/Major Cause/Solution
Development Unit Non-Installing Error
The sensor output value is 31 or less continuously for 5
seconds.

Connector defective or disconnected

Toner density sensor defective

Connect-Left PCB defective

IOB defective
6-16 SM