Ricoh D122 MP3352

• Code: 204
• Description: Polygon motor error 1: XSCRDY signal error
  The XSCRDY signal remained HIGH for 200 ms while the LD unit was firing.
• Causes: • Polygon motor/driver board harness loose or broken • Polygon motor/driver board defective • Laser optic unit defective • IPU defective
• Remedy: 1. Replace the polygon motor. 2. Replace the laser optics housing unit. 3. Replace the harness. 4. Replace the IPU.

• Code: 220
• Description: Laser synchronization detection error: LD0
  The laser synchronizing detection signal for the start position of the LD was not output for two sec. after LDB unit turned on with the polygon motor rotating normally.
• Causes: • Laser synchronizing detection board harness loose or broken. • Laser synchronization detection board defective • LDB unit defective • IPU defective
• Remedy: 1. Check the connectors. 2. Replace the laser-synchronizing detector. 3. Replace the LDB. 4. Replace the IPU.

• Code: 230
• Description: FGATE ON error
  The FGATE signal did not assert within the prescribed time. (The BCU generates the FGATE signal and sends it to the LD unit when the registration sensor switches on.)
• Causes: • BCU, Controller board harness loose or broken • BCU defective • Controller board defective
• Remedy: 1. Check the connection between the controller board and the BCU. 2. Replace the BCU. 3. Replace the controller board.

• Code: 231
• Description: FGATE OFF error
  The FGATE signal did not go off within the prescribed time. (The BCU generates the FGATE signal and sends it to the LD unit when the registration sensor switches on.)
• Causes: • BCU, Controller board harness loose or broken • BCU defective • Controller board defective
• Remedy: 1. Check the connection between the controller board and the BCU. 2. Replace the BCU. 3. Replace the controller board.

• Code: 240
• Description: LD error
  The IPU detected a problem at the LD unit.
• Causes: • LD unit harness broken, defective • BCU harness broken defective • LD unit defective • BCU defective
• Remedy: 1. Replace the harness of the LD. 2. Replace the laser optics housing unit. 3. Replace the harness of the BCU. 4. Replace the BCU.

• Code: 302
• Description: Charge level output error
  The PWM output level was detected higher than 50% after 10 consecutive samplings.
• Causes: • Harness of the high voltage power supply board (power pack) is loose, broken. • PCU connection loose or broken
• Remedy: 1. Replace the harness of the power pack. 2. Replace the harness of the PCU. 3. Replace the PCU.