Canon imageRUNNER 2420 Trouble Error Codes List page 19

position sensor does not go off
when light is emitted.
Punch shift motor error
E593- The light-receiving voltage home
0002 position sensor does not go on
when light is not emitted.
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the punch driver PCB. Replace the finisher
controller PCB. Check the punch shift mechanism.
Check the horizontal registration motor. Check the
horizontal registration home position sensor. Check
the punch driver PCB. Replace the finisher
controller PCB. Check the punch shift mechanism.