C2256 (bizhub C658/C558/C458)

Contents

Trouble type	C2256: Developing motor’s turning at abnormal timing
Rank	B
Trouble detection condition	The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
Trouble isolation	–
Relevant electrical parts	• Developing motor (M21)  • MFP board (MFPB)

 Procedure

1. Check the connector between M21-MFPB CN23E 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 CN23E-5 (REM), MFPB CN23E-8 (LOCK)
   • Location of electrical component: C658 3-C, C558 4-C, C458 5-C
4. Replace M21. (Part# A79JM11400)
5. Replace MFPB. (C458Part# A79MH02102 / C558 or C658Part # A79JH02102)

NOTICE

• Link to the wiring diagram (bizhub C658/C558/C458)

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

K.3.12.3 (Link to the Field Service Manual)