Service manual

Service Call Conditions
M052/M053/M054 6-12 SM
SC6xx: Device Communication
610 D Mechanical counter error: K
- -
This SC is only for NA models.
The machine detects the mechanical counter error when SP5987-001 is
set to "1".
 Disconnected mechanical counter
 Defective mechanical counter
 Defective BICU
620 D Communication error between BICU and ADF
A break occurred in the connection between the BICU and ADF
 ADF disconnected
 ADF defective
 BICU harness connection loose, broken
 BICU defective
 External noise
621 D Communication timeout between BICU and finisher
A break (LOW) signal was received from the finisher.
 Finisher serial cable connection loose, broken
 BICU defective
 Finisher main board defective
 External noise