Muratec MFX-C4000 Field Engineering Manual page 195

Problem Description
Failure in Auto Color
Registration
LSU Motor Not
Ready
LSU Hsync Error
Main BLDC Motor
Error
Black OPC &
Developing BLDC
Motor Error
Color Developing
BLDC Motor Error
Service Manual
Alignment & Troubleshooting
Cause Description
1. Failure in Auto Color
Registration Process
2. Inaccuracies in
Imaging Process
1. LSU Polygon Motor
Error
1. Error on LD/BD in
LSU
1. High Torque Loaded
on ITB and/or Paper
Feeding Unit
1. High Torque Loaded
on Black OPC and/
or Developing Unit
1. High Torque Loaded
on Developing Unit
Action to Resolve
[1. the contamination of ACR Sensor]
1.1) Check the contamination of ACR sensor
1.2) If the sensor is contaminated , make it clean.
[2. the abnormality of ACR Pattern Image]
1.1) Check the ACR Pattern Image.
1.2) If the Image is abnormal , replace the Imaging Unit.
[3. Fail to Obtain the ACR Sensing Data]
1.1) Check the ACR sensor connection and signal.
1.2) If the connection is wrong , correct it .
1.3) If the signal is abnormal , replace the sensor and/or
harness.
[1. LSU Polygon Motor Error]
Replace the LSU unit
[1. Error on LD/BD in LSU]
Replace the LSU unit
[1. High Torque Loaded on ITB and/or Paper Feeding Unit]
1.1) Check the torque ITB and/or Paper Feeding Unit
1.2) If the torque is very high. replace ITB and/or Paper Feeding
Unit
[2. Motor Signal is abnormal]
1.1) Check the wire connection from motor to Engine PBA.
1.2) If the connection is wrong , correct it .
1.3) If the connection is right , replace motor and/or harness .
[1. High Torque Loaded on Black OPC and/or Developing Unit]
1.1) Check the torque Black OPC and/or Developing Unit
1.2) If the torque is very high. replace Black OPC and/or
Developing Unit
[2. Motor Signal is abnormal]
1.1) Check the wire connection from motor to Engine PBA.
1.2) If the connection is wrong , correct it .
1.3) If the connection is right , replace motor and/or harness .
[1. High Torque Loaded on Developing Unit]
1.1) Check the torque Developing Unit
1.2) If the torque is very high. replace Developing Unit
[2. Motor Signal is abnormal]
1.1) Check the wire connection from motor to Engine PBA.
1.2) If the connection is wrong , correct it .
1.3) If the connection is right , replace motor and/or harness .
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