Ricoh SH-P1 M020 Field Service Manual page 256

6. Troubleshooting
Paper tray unit communication error
bank 1
Three consecutive errors occur during
polling, after the paper tray unit has
622 D
successful I2C communication.
Paper tray unit communication error
bank 2
Three consecutive errors occur during
6
623 D
polling, after the paper tray unit has
successful I2C communication.
Paper tray unit communication error
bank 3
Three consecutive errors occur during
polling, after the paper tray unit has
624 D
successful I2C communication.
254
• No paper tray can be used
when this SC occurred.
• No paper tray can be used
when this SC occurred.
• No paper tray can be used
when this SC occurred.
1. Disconnect harnesses
2. Defective Paper tray unit
3. Defective engine board
4. External noise
• Turn the Power Switch Off and On.
• Connect the harnesses properly.
• Replace the Paper tray unit.
• Replace the engine board.
1. Disconnect harnesses
2. Defective Paper tray unit
3. External noise
• Turn the Power Switch Off and On.
• Connect the harnesses properly.
• Replace the Paper tray unit.
• Disconnect harnesses
• Defective Paper tray unit
• External noise
• Turn the Power Switch Off and On.
• Connect the harnesses properly.
• Replace the Paper tray unit.