Description: Serial Number Error The serial number stored in the memory (EGB) is not correct.
Causes: EEPROM defective. EGB replaced without original EEPROM.
Remedy: 1. Check the serial number. 2. If the stored serial number is incorrect, contact your supervisor.
Code: 300
Description: High voltage power output error The measured voltage is not correct when the EGB measures each charge output (charge, development, image transfer belt unit, and transfer unit).
Causes: Disconnected or defective high voltage harness. Defective high voltage power supply. Defective EGB.
Remedy: 1. Check or replace the harnesses. 2. Replace the high voltage power supply board 3. Replace the EGB.
Code: 396
Description: Black drum motor error The LOCK signal error is detected when the EGB monitors the black drum motor state. (This monitoring is done immediately after power-on, when the motor starts rotating, and immediately after the motor stops.)
Causes: Disconnected or defective motor harness. Motor slips due to excessive load.
Remedy: 1. Check the harness from the black drum motor. Replace it if necessary.
Code: 397
Description: Color drum motor error The LOCK signal error is detected when the EGB monitors the color drum motor state. (This monitoring is done immediately after power-on, when the motor starts rotating, and immediately after the motor stops.)
Causes: Disconnected or defective motor harness. Motor slips due to excessive load.
Remedy: 1. Check the harness from the color drum motor. Replace it if necessary.
Code: 445
Description: ITB (Image Transfer Belt) Unit Error Home Position Error The ITB contact sensor does not detect the home position of the ITB for 5 seconds after the ITB unit initialization has been done. ITB (Image Transfer Belt) Unit: Contact Position Error The ITB contact sensor does not detect the contact position of the ITB for 5 seconds after the ITB unit has moved to the contact position. ITB (Image Transfer Belt) Unit: No-contact Position Error The ITB contact sensor does not detect the home position of the ITB for 5 seconds after the ITB unit has moved to no-contact position.
Remedy: 1. Replace the ITB contact motor. 2. Replace the ITB contact sensor. 3. Replace the ITB unit.
Code: 480
Description: Agitator Motor Error The agitator motor error is detected twice for 10 msec during the initialization at power-on or after the cover is closed.
Causes: Disconnected or defective harness. Defective agitator motor.
Remedy: 1. Check or replace the harness. 2. Replace the agitator motor.