Canon ADV C5035 error E0021-0300

[kuby]

Tech has a Canon IR Advance C5035 That has an Error code of E0021-0300 Error with C developing motor. He has replaced the Motor, Developing unit and the drum driver PCB as suggested by the service manual. The error still persists. Has anyone had this issue and if so what is the fix.


Thanks

[copier tech]

Re: Canon ADV C5035 error E0021-0300

Tech has a Canon IR Advance C5035 That has an Error code of E0021-0300 Error with C developing motor. He has replaced the Motor, Developing unit and the drum driver PCB as suggested by the service manual. The error still persists. Has anyone had this issue and if so what is the fix.


Thanks

Most likely a broken cyan drive coupling, there was a bulletin on this.

Measure against E027-0x00 and E021-0x00 due to broken coupling.pdf

• Code: E021-0300
• Description:Error in C Developing Motor
  The motor failed to rotate at the specified speed.
• Remedy:1. Check the load applied to the Developing Assembly (turn the gear with your hand to check if the load is appropriate. If the load is too much, replace the Developing Assembly). 2. Select the following in Service Mode: COPIER > FUNCTION > PART-CHK > MTR; and turn M7 to check the drive of the Developing Motor. If it’s not rotating properly, check the harness (to see if the harness is caught, disconnected or physically removed). 3. (If the above measures do not solve the problem,) replace the Drum Driver PCB (UN4).