SC481 Transfer belt mark detection error • The main motor is operating; and the lock signal is detected. → The belt mark sensor signal does not change for 120 milliseconds. • Defective main motor • Image transfer belt out of position • Belt mark blurred or absent
I would remove the pcu unit (3 screws)and check the transfer assy belt mark and clean the sensor that reads the belt mark. Worst case senerio is replaceing the entire pcu unit.
Answers & Comments
SC481
Transfer belt mark detection error
• The main motor is operating; and
the lock signal is detected. → The
belt mark sensor signal does not
change for 120 milliseconds.
• Defective main motor
• Image transfer belt out of position
• Belt mark blurred or absent
I would remove the pcu unit (3 screws)and check the transfer assy belt mark and clean the sensor that reads the belt mark. Worst case senerio is replaceing the entire pcu unit.