• Code: E7-11
• Description: Shading trouble (White correction all pixel adjustment)
  CCD white reference plate scan level abnormality when the copy lamp is ON.
• Causes: Abnormal installation of flat cable to CCD unit. Dirt on mirror, lens, white reference plate Copy lamp lighting abnormality Abnormal installation of CCD unit CCD unit abnormality Scanner PWB abnormality
• Remedy: Clean mirror, lens, and white reference plate. Check copy lamp light quantity (SIM 5- 3) and lighting. Check CCD unit. Check scanner PWB.

• Code: E7-14
• Description: CCD communication trouble
  Communication trouble (clock sync) between scanner PWB and CCD-ASIC
• Causes: Abnormal installation of harness to CCD unit CCD unit abnormality Scanner PWB abnormality
• Remedy: Check CCD unit harness. Check CCD unit. Check scanner PWB.

• Code: E7-17
• Description: SPF scanning position adjustment trouble (Detected only when executing an adjustment SIM.)
  The black Mylar which serves as the reference of the SPF scanning position is not detected.
• Causes: Black Mylar installing failure on the SPF side
• Remedy: Check the SPF black Mylar.

• Code: E7-50
• Description: LSU connection trouble
  An LSU which does not conform to the machine is installed.
• Causes: LSU connection trouble PCU PWB trouble LSU trouble
• Remedy: Check LSU PWB. Check PCU PWB. Check connection of the connector and the harness between PCU and LSU.

• Code: E7-60
• Description: Controller skating trouble
  Occurrence of an error in controller skating check
• Causes: Discrepancy in the combination of the controller PWB and the ROM
• Remedy: Check the controller PWB. Check the combination of the controller PWB and the ROM.

• Code: E7-80
• Description: Communication trouble (ICU detection) between ICU and scanner
  Communication establishment error/ Fleming/Parity/Protocol error
• Causes: Defective connection of slave unit PWB connector Defective harness between slave unit PWB and ICU PWB Slave unit PWB mother board connector pin breakage
• Remedy: Check connector and harness of slave unit PWB and ICU PWB. Check grounding of machine.

• Code: E7-90
• Description: Communication trouble (ICU detection) between ICU and PCU
  Communication establishment error/ Fleming/Parity/Protocol error
• Causes: Defective connection of slave unit PWB connector Defective harness between slave unit PWB and ICU PWB Slave unit PWB mother board connector pin breakage
• Remedy: Check connector and harness of slave unit PWB and ICU PWB. Check grounding of machine.

• Code: EE-EL
• Description: Auto developer adjustment trouble (Over-toner)
  The toner concentration output is detected as 1.5V or below in the auto development adjustment.
• Causes: Toner concentration sensor trouble Charging voltage, developing voltage abnormality Insufficient toner concentration Developing unit trouble PCU PWB trouble
• Remedy: Use SIM25-2 to perform auto developer adjustment.