C8101 (bizhub 558/458)

Contents

Trouble type	C8101: Before reading pressure welding alienation mechanism
Rank	B
Trouble detection condition	• During a pressure motion being performed, the document reading sensor (PS6) output does not change from H to L. • During a retraction motion being performed, the document reading sensor (PS6) output does not change from L to H.
Trouble isolation	–
Relevant electrical parts	• Reading roll release motor (M4) • Document reading sensor (PS6) • DF control board (DFCB)

 Procedure

1. Check the connector between M4-DFCB J18 for proper connection and correct as necessary.
2. Check the connector of M4 for proper drive coupling and correct as necessary.
3. Check the connector between PS6-DFCB J10 for proper connection and correct as necessary.
4. PS6 I/O check, sensor check
   • Control signal: DFCB J10-3 (ON)
   • Location of electrical component: DF-704 2-G
5. M4 operation check
   • Control signal: DFCB J18-4 to 5
   • Location of electrical component: DF-704 1-G
6. Replace M4. (Part# A3CEPP5700)
7. Replace DFCB. (Part# A85GPP0M00)

NOTICE

• Link to the wiring diagram (DF-704)

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

K.3.21.1 (Link to the Field Service Manual)