Overview - Canon Puncher Unit-P1 Service Manual

Chapter 5

5.1 Overview

5.1.1 Overview

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The finisher to which the unit is mounted is equipped with a mechanism (CPU on the finisher controller PCB) that
runs a self check, communicating to the host machine any fault it detects in the form of a code and a detail code.
In response, the host machine indicates the presence of a fault on its control panel using codes; the detail codes may
be checked in the host machine's service mode.
5-1