Ricoh Aficio 480W Dolphin-C2 Service Manual page 335

28 April 2005 PAPER FEED AND REGISTRATION
The paper feed section consists of two roll trays and the by-pass feed table. Each
paper source can be selected from the operation panel. The first roll tray contains
two rolls (roll 1 is at the front of the machine, and roll 2 is towards the rear). The
second roll tray (optional) contains two rolls (Roll 3 – Front, Roll 4 – Rear).
Inserting the original starts the feed motor and the registration motor, and paper
feed begins. The paper is fed from the paper supply source, passes the feed exit
roller and is fed into the machine by the registration rollers.
The registration rollers halt temporarily to allow paper skew correction, and then
start again to feed the paper to the drum.
Next, the cutter cuts the paper after the specified paper length has been fed
(monitored by the cutting sensor). The starting time of the cutter depends on the
cutting mode selected at the operation panel (preset cut, synchro cut, or variable
cut).
After the last cut of a job, the feed roller reverses and returns the edge of the paper
to its home position away from the vertical part of the feed path. This ensures that
the paper path is not obstructed when paper feed starts for the next job.
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