User manual

95.08.23.11.30
Color LaserWriter 12/600 PS Basics & Theory 1–93
Manual
Feeding
The presence of paper in the manual feed tray is detected by the manual
feed paper-present sensor (PS1).
Upon receiving the print sequence command, the mechanical controller
drives the main motor (M2) and 0.2 second later also drives the drum
motor (M4) and the pickup motor (M1). After 0.5 second, the manual
feed solenoid (SL2) is turned on to transmit the rotational force of the
pickup motor to the manual feed pickup roller. As the pickup roller
rotates, the paper lifting plate press cam is released and the spring force
pushes up the paper lifting plate. Thus, the paper is pressed against the
pickup roller and picked up by its rotation. After the paper is separated
from any extra sheet by the separation pad, it is fed into the printer by
feed roller 2. The subsequent operations are as described for cassette
feeding.
Manual Feed Pickup Roller
Lifting Plate Press Cam
Spring
Paper Lifting Plate
Paper
Manual Feed Solenoid