Sharp AR-5012 Service Manual page 29

3) After about 0.1 sec from when the main motor start rotating, the
tray paper feed solenoid (PFS) turns on for a moment.
This disengages the paper feed latch from the projection of the
clutch sleeve, transmitting rotation of the pick-up drive gear to the
paper feed roller shaft, rotating the pick-up roller to feed the paper.
PFS
OFF
4) After more than half rotation of the pick-up roller, the paper feed
latch is brought in contact with a notch on the clutch sleeve,
stopping rotation of the pick-up roller.
5) At this time, the paper is fed passed the paper entry detection
switch (PPD1), and detected by it. After about 0.15 sec from
detection of paper by PPD1, the tray paper feed solenoid (PFS)
turns on so that the clutch sleeve projection comes into contact
with the paper feed latch to stop the pick-up roller. Then the pick-
up roller rotates for about 0.15 sec so that the lead edge of the
paper is evenly pressed on the resist roller, preventing against
skew feeding.
PFS
ON
6) To release the resist roller, the tray paper feed solenoid and the
resist solenoid are turned on by the paper start signal to disengage
the resist start latch from the clutch sleeve, transmitting rotation of
the resist drive gear to the resist roller shaft. Thus the paper is
transported by the resist roller.
7) After the resist roller starts rotating, the paper is passed through
the pre-transfer guide to the transfer section. Images are
RRS
OFF
8) The paper separated from the drum is passed through the fusing
(2) Manual multi paper feed operation
1) Before paper feed operation, the manual paper feed solenoid
RRS
OFF
AR-5012 OPERATIONAL DESCRIPTIONS 7 - 5
transferred on the paper, which is separated from the OPC drum
by the drum curve and the separation section.
PFS
OFF
paper guide, the heat roller (fusing section), POD (paper out
detector) to the copy tray.
(MPFS) is turned OFF as shown in the figure below.
OF F
MPFS
RRS
ON
A
C