Ricoh IM 550F

6.Troubleshooting
546
Service Call 302-396
SC300 (Engine: Imaging 1: Charge, Development)
SC No.
Type
Error Name/Error Condition/Major Cause/Solution
SC302-
00
SC303-
00
D
C
Charger Current Error
When the charging voltage is applied by changing the voltage in three levels, the
current value is less than 20µA in one of three levels.
• Connector defective or disconnected
• Power pack (PCB19) defective
• IOB (PCB17) 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 (PCB19) connector
• Power Pack (PCB19) – IOB (PCB17) connector
• Power Pack (PCB19) defective
Replace the Power Pack (PCB19).
• IOB (PCB17) defective
Replace the IOB (PCB17).
SC No.
Type
Error Name/Error Condition/Major Cause/Solution
SC321-
00
SC322-
00
C
D
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 (PCB20) defective
• IOB (PCB17) defective
• Connector defective or disconnected
Reconnect the following connectors. Then perform a conduction inspection. If
there is no conduction, replace the connector.
• Development Unit – Drum PCB (PCB10) connector
• Drum PCB (PCB10) – Drum Connection PCB (PCB11) connector
• Drum Connection PCB (PCB11) – Connect-Left PCB (PCB20) connector
• Connect-Left PCB (PCB20) – IOB (PCB17) connector
• Toner density sensor defective
Replace the toner density sensor.
• Connect-Left PCB (PCB20) defective
Replace the Connect-Left PCB (PCB20).