Description: ERDH board communication trouble (Framing)
Causes:
Remedy:
Code: E1-88
Description: ERDH board communication trouble (Time-out)
Causes:
Remedy:
Code: E7-03
Description: LSU trouble
After the polygon motor becomes active, BD signal (HSYNC) from the LSU is not detected at the specified times (41 ± 10 times within 20msec).
Causes: LSU connector disconnection or LSU’s inside harness disconnection or breakage Polygon motor rotation abnormality Improper positioning of the laser home position sensor in the LSU. Laser power voltage failure Laser emitting diode abnormality MCU PWB abnormality
Remedy: Improper connection of the LSU connector Check the polygon motor operation with SIM 25-10. Check printing with SIM64-1. Check laser emission of laser emitting diode. Check the LSU unit. Check the MCU PWB.
Code: E7-04
Description: CCD white level trouble
CCD white reference level which is read during the copy lamp lighting is abnormal.
Causes: Flat cable installation failure to CCD unit Dirt on the mirror, lens, and reference white plate Copy lamp lighting failure CCD unit installation failure CCD unit abnormality MCU PWB abnormality
Remedy: Clean the mirror, the lens, and the reference white plate. Check the copy lamp (SIM 5-3) ON. CCD unit check MCU PWB check
Code: E7-05
Description: CCD black level trouble
CCD black level which is read while the copy lamp is off is abnormal.