Canon CLBP-460PS, Service Manual

Page: 133 / 566

V. PICK-UP/FEED SYSTEM
A. Outline
When the /PRNT signal is sent to the DC controller by the video controller and the scanner
motor is put in the READY mode, the DC controller starts the print operation. For cassette feed-
ing, a sheet of paper is picked up by the cassette pick-up roller and is fed by the feed rollers.
For manual feeding, a sheet of paper is picked up by the multi-purpose tray pick-up roller and
is fed by the feed rollers.
After any skew in the paper is corrected by the registration roller, it stops at the leading edge
detection position. The temporarily stopped paper is refed so that its leading edge will match
the leading edge of the image on the photosensitive drum. Subsequently, the paper passes
through the secondary transfer, separation, fixing and delivery units to the face-down or face-
up tray.
The timing of paper pick-up/feeding for this printer is based on the ITB home position detec-
tion signal. (See P.2-56 for the ITB home position detection.)
Figure 2-5-1
2 - 75
CHAPTER 2
Face-down delivery roller
Face-down tray
ITB unit
Upper fixing roller
Lower fixing roller
Multi-purpose tray
pick-up roller
Cassette pick-up roller
Registration
roller
Cassette
Separation roller
Cassette feed roller
Face-up tray
Face-up delivery
roller
Feed roller
Secondary
transfer roller
Multi-purpose tray
feed roller
Paper lifting plate