Canon CLBP-460PS, Service Manual

Page: 143 / 566

D. Fixing and Delivery Unit
1. Outline
The upper fixing roller and the fixing delivery roller of the fixing unit and the face-down delivery
roller are driven by the fixing motor (M1). The lower fixing roller is driven by the upper fixing
roller.
The fixing motor starts to run when the fixing roller temperature reaches the fixing roller drive
start temperature (100ÞC) after power ON or when a PRINT signal (/PRNT) is input during the
standby condition.
The paper passed through the feed unit is fed to the fixing unit and delivered out of the unit
by the upper and lower fixing rollers and the fixing unit delivery roller. The paper delivered from
the fixing unit is detected by the delivery paper sensor (PS7).
The printer turns OFF the fixing roller pressure when the printer is turned OFF or when the
paper is jammed. The fixing unit pressure sensor (PS6) detects whether the fixing roller pres-
sure is ON or OFF.
The printer switches between the face-up tray and face-down tray with a deflector. When the
face-up tray is opened, the paper is output onto the face-up tray, and when the face-up tray is
closed, the paper is output onto the face-down tray.
When the face-down tray becomes full, it is detected by the face-down tray paper full sensor
(PS9).
2 - 85
CHAPTER 2