Sharp MXC250FE

• Code: E7-38
• Description: Zoran chip AD adjustment error
• Causes: The voltage on MFPC PWB is not stable The parts on the MFPC PWB are not soldered properly.
• Remedy: Replace the MFPC PWB.

• Code: E7-80
• Description: Flex RISC- SCU communication error
• Causes: FlexRISC trouble
• Remedy: Check fixation of the MFPC PWB Replace the MFPC PWB.

• Code: E7-91
• Description: FAX reception image data error
• Causes: FAX control PWB trouble Image data process abnormality Flash memory contact error Image compression data corruption Control PWB trouble
• Remedy: Replace the fax control PWB Sim60-1 to check the read/write operations of the memory Replace the MFPC PWB

• Code: E7-93
• Description: Copy, image send, FAX, filing, print image data process error
• Causes: Image compression data corruption Image data process abnormality Control PWB trouble
• Remedy: Replace the mother board. Sim60-1 to check the read/write operations of the memory Replace the MFPC PWB

• Code: EE-EC
• Description: Automatic toner density adjustment error (Sampling level 76 - 117/139 - 178)
• Causes: Toner density sensor trouble. Developing unit trouble. PCU PWB trouble.
• Remedy: Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.

• Code: EE-EL
• Description: Automatic toner density adjustment error (Overtoner)
• Causes: Toner density sensor trouble. Charging voltage/ developing voltage trouble, toner density trouble, or developing unit trouble. MFPC PWB trouble.
• Remedy: Replace the toner density sensor. Replace the developing unit. Replace the MFPC PWB.