MX-4100N, MX-4101N, MX-5000N, MX-5001N (serv.man15). Service Manual-Section 7-Self Diag and Trouble Code - Sharp Copying Equipment Service Manual (repair manual). Page 13

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MX-4101N  SELF DIAG AND TROUBLE CODE  7 – 13
 
F1-32
Finisher - Punch unit communication
error
 
F1-33
Punch unit shift operation trouble
 
F1-34
Punch operation trouble
 
F1-36
Punch paper edge detection error
 
F1-37
Finisher data backup RAM error
 
F1-38
Punch data backup RAM error
 
F1-39
Punch paper dust sensor error
 
F1-41
Saddle paper positioning operation
trouble
 
F1-43
Saddle alignment operation trouble
Trouble content
Detail
PCU
Cause
Connector/harness connection trouble or 
disconnection between the finisher and the punch 
unit.
Finisher control PWB trouble.
PCU PWB trouble.
Malfunction due to noises.
The punch unit is in the adjustment mode.
Check & Remedy
Check the connector and the harness between the 
finisher and the punch unit.
Replace the finisher control PWB.
Replace the PCU PWB.
Cancel the adjustment mode of the punch unit.
Trouble content
Detail
PCU
Cause
Punch shift motor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Check & Remedy
Use SIM3-3 to check the operation of the punch 
shifting.
Replace the punch shift motor.
Replace the finisher control PWB.
Replace the home position sensor.
Check connection of the connectors and the 
harness.
Trouble content
Detail
PCU
Cause
Punch motor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Check & Remedy
Check the punch operation.
Replace the punch motor.
Replace the finisher control PWB.
Replace the home position sensor.
Check connection of the connectors and the 
harness.
Trouble content
Detail
PCU
Cause
Punch paper edge sensor trouble.
Harness disconnection.
Finisher control PWB trouble.
Punch control PWB trouble.
Check & Remedy
Use SIM3-2 to check the operation of the sensor.
Replace the punch paper edge sensor.
Replace the finisher control PWB.
Replace the punch control PWB.
Trouble content
Detail
PCU
Cause
Finisher control PWB trouble.
Malfunction due to noises
Check & Remedy
Replace the finisher control PWB.
Readjust the finisher. (Use SIM3-10,Finisher control 
PWB DIP SW adjustment.)
Trouble content
Detail
PCU
Cause
Punch control PWB trouble.
Malfunction due to noises
Check & Remedy
Replace the punch control PWB.
Set the punch unit specifications, and adjust the 
sensor. (Punch unit control PWB DIP SW 
adjustment.)
Trouble content
Detail
PCU
Cause
Punch dust sensor trouble.
Harness and connector connection trouble.
Finisher control PWB trouble.
Punch unit control PWB trouble.
Check & Remedy
Use SIM3-2 to check the operation of the sensor.
Check connection of the connectors and the 
harness.
Replace the punch dust sensor.
Replace the finisher control PWB.
Replace the punch unit control PWB.
Trouble content
Abnormality in the folding positioning guide motor in 
the saddle section.
Detail
PCU
Cause
Saddle paper positioning guide drive motor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Check & Remedy
Use SIM3-3 to check the operation of the saddle 
paper positioning motor.
Check connection from the control PWB to the motor.
Turn OFF/ON the power.
Replace the control PWB.
Replace the sensor.
Trouble content
Detail
PCU
Cause
Saddle alignment motor trouble.
Finisher control PWB trouble.
Home position sensor trouble.
Harness and connector connection trouble.
Check & Remedy
Use SIM3-3 to check the operation of the Saddle 
alignment motor (FSPAM).
Check connection from the control PWB to the motor.
Turn OFF/ON the power.
Replace the control PWB.
Replace the sensor.
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