Canon C5000 - MultiPASS Color Inkjet Printer, Service Manual, Page: 70 / 221

Part 1: Facsimile
The electrical section is composed of the following: the SCNT board, which performs system
control; the NCU
which is the interface with the telephone circuit; PCNT board; which
performs printer the power supply unit; and OPCNT board, which key
operations and displays status information. There are also 6 system status.
Paper edge sensor:
Detects the state of paper
and
Pickup roller sensor:
Detects the state of
position sensor:
the carriage position
d purge status.
Ink detect sensor:
Detects ink
from the
BJ order to
detect when the BJ
runs out of ink.
Document sensor
Detects whether
a document set.
Document edge sensor:
Detects the trailing edge
of the document.
OPCNT board
board
Figure 2-2 Electrical System Layout
2-2