Description: IMC PWB communication trouble (Overrun) Communication trouble between MCU and IMC PWB (Overrun error)
Causes: IMC PWB connector disconnection Motherboard connector pin breakage IMC PWB ROM defect, data failure
Remedy: Check the connectors of the IMC PWB and MCU PWB. Check the grounding of the copier. Check the ROM of the IMC PWB.
Code: E1-84
Description: IMC PWB communication trouble (Framing) Communication trouble between MCU and IMC PWB (Framing error)
Causes: IMC PWB connector disconnection Motherboard connector pin breakage IMC PWB ROM defect, data failure
Remedy: Check the connectors of the IMC PWB and MCU PWB. Check the grounding of the copier. Check the ROM of the IMC PWB.
Code: E1-88
Description: IMC PWB communication trouble (Timeout) Communication trouble between MCU and IMC PWB (Time-out error)
Causes: IMC PWB connector disconnection Motherboard connector pin breakage IMC PWB ROM defect, data failure
Remedy: Check the connectors of the IMC PWB and MCU PWB. Check the grounding of the copier. Check the ROM of the IMC PWB.
Code: E7-02
Description: LSU trouble BD signal from LSU is not detected in a constant cycle. (Kept OFF or ON)
Causes: LSU connector or LSU inside harness trouble or disconnection Polygon motor rotation abnormality Laser does not illuminate. MCU PWB failure
Remedy: Check for disconnection of the LSU connector. Check the LSU operation with SIM 61-1. Check that the polygon motor rotates normally. Check laser LED lighting. Replace the LSU unit. Replace the MCU PWB.
Code: E7-10
Description: Shading trouble (black correction) CCD black reference plate scan level abnormality when the copy lamp turns off.
Causes: Flat cable installation failure to CCD unit CCD unit error
Remedy: Check flat cable installation to the CCD unit. Check CCD unit.
Code: E7-11
Description: Shading trouble (white correction) Improper CCD white reference plate reading level for copy lamp lighting
Causes: Flat cable installation failure to CCD unit "Dirt on the mirror, lens, and reference white plate" Copy lamp operation error CCD unit abnormality MCU PWB abnormality (Occurred in the SPF scan position.)
Remedy: Clean the mirror, the lens, and the reference white plate. Check the copy lamp light quantity and its operation. (SIM 5-3) Check CCD unit. Check MCU PWB.