Specifications

MX-3610N TROUBLESHOOTING 6 – 17
E7-96 MFPC PWB DIMM memory check error
E7-A0 LSU LD PWB EEPROM read/write
error (K)
E7-A1 LSU LD PWB EEPROM read/write
error (C)
E7-A2 LSU LD PWB EEPROM read/write
error (M)
E7-A3 LSU LD PWB EEPROM read/write
error (Y)
EE-EC Automatic toner density adjustment
error
EE-EL Automatic toner density adjustment
error (Over toner)
Trouble content MFPC PWB DIMM memory access trouble
Detail MFP
Cause Memory data corruption occurs
MFPC PWB trouble
DIMM memory trouble or contact error
Check & Remedy Use SIM60-01 to check the read/write operations of
the memory.
Replace the MFPC PWB.
DIMM memory socket check
Replace the DIMM memory.
Trouble content Write error in the EEPROM write sequence
Detail PCU
Cause LD PWB EEPROM trouble.
LSU mother PWB trouble.
Connector/harness trouble between the LD PWB and
the LSU mother PWB.
Connector/harness trouble between the PCU PWB
and the LSU mother PWB.
Check & Remedy Check the LSU, and replace if necessary.
Check the LSU mother PWB, and replace if
necessary.
Check the connector/harness between the LD PWB
and the LSU mother PWB, and replace if necessary.
Check the connector/harness between the PCU PWB
and the LSU mother PWB, and replace if necessary.
Replace the LSU.
Trouble content Write error in the EEPROM write sequence
Detail PCU
Cause LD PWB EEPROM trouble.
LSU mother PWB trouble.
Connector/harness trouble between the LD PWB and
the LSU mother PWB.
Connector/harness trouble between the PCU PWB
and the LSU mother PWB.
Check & Remedy Check the LSU, and replace if necessary.
Check the LSU mother PWB, and replace if
necessary.
Check the connector/harness between the LD PWB
and the LSU mother PWB, and replace if necessary.
Check the connector/harness between the PCU PWB
and the LSU mother PWB, and replace if necessary.
Replace the LSU.
Trouble content Write error in the EEPROM write sequence
Detail PCU
Cause LD PWB EEPROM trouble.
LSU mother PWB trouble.
Connector/harness trouble between the LD PWB and
the LSU mother PWB.
Connector/harness trouble between the PCU PWB
and the LSU mother PWB.
Check & Remedy Check the LSU, and replace if necessary.
Check the LSU mother PWB, and replace if
necessary.
Check the connector/harness between the LD PWB
and the LSU mother PWB, and replace if necessary.
Check the connector/harness between the PCU PWB
and the LSU mother PWB, and replace if necessary.
Replace the LSU.
Trouble content Write error in the EEPROM write sequence
Detail PCU
Cause LD PWB EEPROM trouble.
LSU mother PWB trouble.
Connector/harness trouble between the LD PWB and
the LSU mother PWB.
Connector/harness trouble between the PCU PWB
and the LSU mother PWB.
Check & Remedy Check the LSU, and replace if necessary.
Check the LSU mother PWB, and replace if
necessary.
Check the connector/harness between the LD PWB
and the LSU mother PWB, and replace if necessary.
Check the connector/harness between the PCU PWB
and the LSU mother PWB, and replace if necessary.
Replace the LSU.
Trouble content The sampling level in the automatic toner density
adjustment is outside of 128 10.
Detail PCU
Cause Toner density sensor trouble.
Developing unit trouble.
PCU PWB trouble.
Check & Remedy Replace the toner density sensor.
Replace the developing unit.
Replace the PCU PWB.
Trouble content The sampling level in the automatic toner density
adjustment is 76 or less or the control voltage is 208
or above.
Detail PCU
Cause Toner density sensor trouble.
Developing unit trouble.
PCU PWB trouble.
Check & Remedy Replace the toner density sensor.
Replace the developing unit.
Replace the PCU PWB.