C2156 (bizhub C658/C558/C458)

Contents

Trouble type	C2156: Transfer belt spacing fault after all pressure established
Rank	B
Trouble detection condition	C2156: The 1st transfer pressure sensor (PS39) is unblocked after the laps of given time after the 1st transfer pressure clutch (CL5) turned OFF when the pressing operation is finished.
Trouble isolation	–
Relevant electrical parts	• Fusing motor (M3)  • 1st transfer pressure clutch (CL5)  • 1st transfer pressure sensor (PS39)  • Expansion control board (EXCB)  • MFP board (MFPB)

 Procedure

1. Check the connector between M3-MFPB CN14E for proper connection and correct as necessary.
2. Check the connector of M3 for proper drive coupling and correct as necessary.
3. Check the connector between PS39-relay CN113-MFPB CN15E for proper connection and correct as necessary.
4. Check the connector between CL5-relay CN118-EXCB CN8 for proper connection and correct as necessary.
5. PS39 I/O check, sensor check
   • Control signal: MFPB CN15E<B>-10 (ON)
   • Location of electrical component: C658/C558 18-C, C458 21-C
6. CL5 operation check
   • Control signal: EXCB CN8<A>-4 (CL5_REM)
   • Location of electrical component: 25-T
7. M3 operation check
   • Control signal: MFPB CN14E-9 (REM), MFPB CN14E-12 (LOCK)
   • Location of electrical component: 2-C
8. Replace M3. (Part# A2X0M10300)
9. Replace EXCB. (Part# A79JH00500)
10. MFPB F6E conduction check
11. Replace MFPB. (C458 Part# A79MH02102 / C558 or C658 Part # 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.3.12.1 (Link to the Field Service Manual)