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Canon MultiPASS C5000 Service Manual Page 70

Canon multipass c5000 inkjet printer.
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Table of Contents
Part 1: Facsimile
The electrical section is composed of the following: the SCNT board, which performs system
control; the NCU board, which is the interface with the telephone circuit; PCNT board; which
performs B.J printer conlrol; the power supply unit; and the OPCNT board, which dctrcts key
operations and displays status information. There are also 6 sensors to dctcct system status.
Ink detect sensor:
Detects ink flred from the
BJ head,in order to
detect when the BJ cartrldg
runs out of ink.
Document sensor
Detects whether or
a document IS set.
Document edge sensor:
Detects the trailing edge
of the document.
Paper edge sensor:
Detects the state of paper
Pickup roller sensor:
Detects the state of
Figure 2-2 Electrical System Layout
OPCNT board
d purge unit status.


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