C2255 (bizhub C368/C308/C258)

 Contents

Trouble type	C2255: Developing motor failure to turn
Rank	B
Trouble detection condition	The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
Trouble isolation	–
Relevant electrical parts	• Developing motor (M21) • MFP board (MFPB)

 Procedure

1. Check the connector between M21-MFPB CN7E for proper connection and correct as necessary.
2. Check the connector of M21 for proper drive coupling and correct as necessary.
3. M21 operation check
   • Control signal: MFPB CN7E-5 (REM), MFPB CN7E-8 (LOCK)
   • Location of electrical component: 3-C
4. Replace M21. (Part# A7PUM10100)
5. Replace MFPB. (Part# A7PUH02123)

NOTICE

• Link to the wiring diagram (bizhub C368/C308/C258)

Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.

K.3.11.3 (Link to the Field Service Manual)