Ricoh AP204

• Code: 73
• Description: Drum Cleaner Contact Solenoid Error
• Causes: · Loose cable connection · Defective drum cleaner contact solenoid · Defective IOD2 board · Defective IOD1 board · Defective MCTL board

• Code: 74
• Description: Cleaner Clutch Error
• Causes: · Loose cable connection · Defective cleaner clutch · Defective IOD2 board · Defective IOD1 board · Defective MCTL board

• Code: 75
• Description: Fusing Unit Clutch Error
• Causes: · Loose cable connection · Defective fusing unit clutch · Defective IOD2 board · Defective MCTL board

• Code: 76
• Description: Belt Sensor Error
• Causes: · Printer not level · Dirt on the OPC belt · Defective belt cartridge · Loose cable connection · Defective belt sensor · Defective IOD1 board · Defective MCTL board

• Code: EC
• Description: Engine Communication Error
• Causes: · Communication error between MCTL and controller