Cassette Feeding; Manual Paper Feeding - Kyocera Ecosys FS-600 Service Manual

Operation theory
Operation overview

Cassette feeding

The main logic controller sends the PRINT* signal to the engine controller after it has
finished processing data. The engine controller CPU then starts the main motor (MOTDR),
polygon motor, registration rollers, and the fuser heater. The engine controller then issues
the FEDDR signal which connects the main motor power to the paper feed tire. The tire
feeds the top sheet in the paper stack in the cassette towards the registration rollers until
the paper reaches the registration sensor (RESIT*). As the engine controller sends
VSREQ* to the main logic controller, the main logic controller subsequently issues
VSYNC* to activate the registration rollers, thus starting to feed paper forwards to the
drum.
The paper is advanced to the drum, to the fuser unit, triggering the exit sensor (EXITJ*),
and finally delivered either to the face-down or face-up tray as manipulated by the user.

Manual paper feeding

The printer is set to manual feeding mode when the key is manipulated
FEED[/SIZE]
together to light the indicator. In the manual feed more, the paper placed on the
MANUAL
manual feed tray is detected by the registration sensor (RESIT*) and the printer does not
attempt to feed the paper in the paper cassette.
The printer is also featured with the automatic manual feed mode. In the automatic
manual feed mode, the printer automatically switches to feeding the paper on the manual
feed tray regardless of the current paper feed source. This mode is activated by simply
setting the printer off-line and placing the paper on the manual feed tray. Then, when the
indicator begins flashing, the key must be pressed to bring the
DATA ONLINE[/STATUS]
printer back on-line to start printing.
4-20
FS-600/FS-680