Canon iPF710 - imagePROGRAF Color Inkjet Printer, Service Manual

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Chapter 2
2-49
Printhead contact sensor
The printhead contact sensor detects the status of printhead installation by electrical means.
The sensor detects the status of contact from voltage changes in the flexible cables on the carriage side that come
into contact with two terminals of the printhead with remote contact surfaces, the power terminals and GND
terminal.
2.5.4 Paper path system
0012-6327
F-2-39
Media sensor
The photoreflector-based media sensor detects the presence or absence of paper on the platen.
The sensor detects the presence of paper when it receives sensor light reflected upon the paper.
Feed roller HP sensor
The feed roller HP sensor sets an LF eccentricity correction home position by detecting transitions from black
(shielded) to white (transmitted), or a reference, in the scale in the code wheel.
Feed roller encoder sensor
The feed roller encoder sensor detects the carriage position from slits in the feed roller pulley as it is driven.
Media sensor
Feed roller HP sensor
Feed roller
encoder sensor