Canon iPF9000 series, Service Manual

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Chapter 2
2-46
2.3.3.2 Paper Path
2.3.3.2.1 Structure of Feed Roller Unit
0012-6383
iPF9000 / iPF9000S / iPF9100
a) Paper feed assembly
The paper feed assembly consists of paper feeding mechanisms, such as a feed roller that is driven by the feed motor and a pinch roller unit that follows up the
motion of the feed roller.
Paper feeds horizontally under the printheads on the carriage as it is kept level on the platen to prevent cockling.
b) Sensors
The paper feed assembly includes sensors for detecting the status of paper feeding and that of the mechanical components that make up the paper passage.
For more details, see TECHNICAL REFERENCE > Detection Functions with Sensors.
c) Roll media spool drive
The paper feed assembly is complete with a roll media spool drive unit to prevent roll media from slacking as they feed. The roll media spool drive unit rewinds
roll media by turning on the spool clutch. The spool clutch turns on only when roll media feed rearward. Driving force is imparted from the feed motor to rotate the
roll holder for rewinding the media. The spool clutch remains off when roll media feed forward.
F-2-26
2.3.3.3 Cutter Unit
2.3.3.3.1 Structure of Cutter Unit
0012-6386
iPF9000 / iPF9000S / iPF9100
If the print driver is configured to use a cutter with roll media, cutter unit attached to the left side of the carriage cuts roll media automatically. Cutter unit won't cut
roll media if the print driver is configured otherwise.
Feed roller HP sensor
Printhead
Roll media
Release lever
Feed roller
Pinch roller
Roll holder
Spool clutch
Media sensor
Feed roller encoder
Feed motor