Causes: A SIMM abnormality is detected in the E-Sort PWB. Control circuit hung up due to noises SIMM peripheral circuit error
Remedy: Replace the E-Sort PWB. Replace the SIMM. Check grounding of the machine.
Code: E11 17
Description: E-Sort PWB image rotating RAM error
Causes: A image rotating RAM abnormality is detected in the E-Sort PWB. Control circuit hung up due to noises Image rotating RAM peripheral circuit error
Remedy: Replace the E-Sort PWB. Check grounding of the machine.
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 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 which is read while the copy lamp is off is abnormal.
Remedy: Check flat cable installation to the CCD unit. CCD unit check MCU PWB check
Code: F6 00
Description: Communication trouble between MCU and FAX (MCU detection). Communication establishment error, framing error, parity error, protocol error
Causes: Bad connection of FAX control PWB connector Defective harness between FAX control PWB and MCU PWB. Motherboard connector pin breakage FAX control PWB ROM error, data error
Remedy: Check connector/harness of FAX control PWB and MCU PWB. Check grounding of the machine. Check FAX control PWB ROM.