17-8. Paper Take-Up Roll
Since the Paper Lifting Plate is raised at all times by the Paper Lifting
Springs, paper is wedged in the mechanism when the Drawer is slid out of
the copier if the Paper Take-Up Roll is round in shape. So the Take-Up Roll
is semicircular and the circular part of the Roll is positioned on top at times
other than take-up. For convenience, we call this position of the Paper
Take-Up Roll the "retracted" position.
The Paper Take-Up Roll is grooved to keep good friction even under heavy
loading. The 1st Drawer, which is a universal type to accommodate paper of
different sizes, is provided with four (three in areas using only inch paper)
Paper Take-Up Rolls. The 2nd Drawer accommodating paper of a fixed size
only is equipped with two Rolls whose positions must be changed according
to the paper size. (For the positions, see DIS/REASSEMBLY,
ADJUSTMENT.)
The Paper Take-Up Roll is driven when the Paper Take-Up Solenoid (SL2
for the 1st Drawer and SL3 for the 2nd Drawer) is energized. The Roll is
turned one complete turn for each single sheet of paper. If, however, the
Paper Take-Up Sensor is not activated within approx. 1,200 msec. after the
Solenoid has been deenergized, the Solenoid is again energized.
The Paper Take-Up Sensor (PC55 for the 1st Drawer and PC56 for the 2nd
Drawer) is used to detect whether a sheet of paper has been properly taken
up or not.
RatchetPaper Take-Up Roll
Ratchet
Paper Take-Up Solenoid
Actuator
Paper Take-Up Sensor
Vertical Transport Roller
M-63
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