C6104 (bizhub 754e/654e)

Contents

Trouble type	Back side cleaning home sensor abnormality (initial)
Trouble code	C6104
Rank	B
Detection timing	• The back side cleaning home sensor (PS9) does not change from H to L even after the lapse of a given period of time after the home position detecting operation is started at the initial operation. • The back side cleaning home sensor (PS9) does not change from L to H even after the lapse of a given period of time after the home position detecting operation is started at the initial operation.
Trouble isolation	Scanner
Relevant electrical parts	• Back side cleaning home sensor (PS9) • Back side cleaning motor (M7) • DF control board (DFCB)

  (2)Procedure

Step	Action	Control signal	Location of electrical components
1	Check the connector between M7-relay CN119-DFCB CN6 for proper connection, and correct as necessary.	–	–
2	Check the connector of M7 for proper drive coupling, and correct as necessary.	–	–
3	PS9 I/O check, sensor check	DFCB CN3-11 (ON)	DF-702 6-C
4	M7 operation check	DFCB CN6-5 to 8	DF-702 7-C
5	Replace M7M7 (Part# A0HUM10000)	–	–
6	DFCB ICP4 conduction check	–	–
7	Replace DFCBDFCB (Part# A3CKH00102)	–	–

• Link to the wiring diagram (N.1. bizhub 754e/654e)
• Link to the layout drawings for related parts by each trouble code (S.93. C6104, C6105)

Document Information ID D0001104805 Revise ID R000003

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

K.3.11.4 (Link to the Field Service Manual)