Troubleshooting; Error Code; E503; Puncher Unit Communication Error; E505; Backup Ram Error - Canon External 2/3 Hole Puncher-B1 Service Manual

Chapter 4

4.4 Troubleshooting

4.4.1 Error Code

4.4.1.1 E503; Puncher unit communication error

<Finisher controller PCB/Punch controller PCB>
1) Does it improve when the host machine power switch is turned OFF/ON?
YES : End
<Wiring>
2) Is the wiring between the finisher controller PCB and punch controller PCB normal?
NO : Repair the wiring.
<Finisher controller PCB/Punch controller PCB>
3) Does it improve when the finisher controller PCB and punch controller PCB are replaced?
YES : End

4.4.1.2 E505; Backup RAM error

<Punch controller PCB>
1) Does it improve when the host machine power switch is turned OFF/ON?
YES : End
No : Replace the punch controller PCB.

4.4.1.3 E590; Punch motor error

<Punch home position sensor (PI63)>
1) Check the punch home position sensor. Does the sensor operate normally?
NO : Replace the sensor.
<Punch motor clock sensor (PI62)>
2) Check the punch motor clock sensor. Does the sensor operate normally?
NO : Replace the sensor.
<Wiring>
3) Is the wiring between the punch controller PCB and sensors normal?
NO : Repair the wiring.
<Punch mechanism/Punch motor (M61)>
4) Is there any abnormality in the punch mechanism?
YES : Repair the punch mechanism.
NO : Replace the punch motor.
<Punch controller PCB/Finisher controller PCB>
5) Does it improve when the punch controller PCB is replaced?
YES : End
NO : Replace the finisher controller PCB.

4.4.1.4 E591; Scrap full detector sensor error

<Wiring>
1) Is the wiring between the scrap full detector PCB and the punch controller PCB normal?
NO : Repair the wiring.
<Scrap full detector PCB>
2) Does it improve when the scrap full detector PCB is replaced?
YES : End
NO : Replace the punch controller PCB.
<Punch controller PCB/Finisher controller PCB>
3) Does it improve when the punch controller PCB is replaced?
YES : End
NO : Replace the finisher controller PCB.

4.4.1.5 E592; Trailing edge/Horizontal registration sensor error

<Wiring>
1) Is the wiring between the LED PCB/photosensor PCB and the punch controller PCB normal?
NO : Repair the wiring.
<LED PCB/Photosensor PCB>
2) Does it improve when the LED PCB/photosensor PCB is replaced?
YES : End
NO : Replace the punch controller PCB.
<Punch controller PCB/Finisher controller PCB>
3) Does it improve when the punch controller PCB is replaced?
YES : End
NO : Replace the finisher controller PCB.

4.4.1.6 E593; Horizontal registration motor error

<Horizontal registration home position sensor (PI61)>
1) Check the horizontal registration home position sensor. Does the sensor operate normally?
NO : Replace the sensor.
<Wiring>
2) Is the wiring between the punch controller PCB and the sensor normal?
NO : Repair the wiring.
<Horizontal registration mechanism/ Horizontal registration motor (M62)>
3) Is there any abnormality in the horizontal registration mechanism?
YES : Repair the horizontal registration mechanism.
NO : Replace the horizontal registration motor.
<Punch controller PCB/Finisher controller PCB>
4) Does it improve when the punch controller PCB is replaced?
YES : End
NO : Replace the finisher controller PCB.
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