Conveyance Control - Konica Minolta FS-107 Service Handbook

*2 Prevention of tray up/down accident
To prevent the accident insertion of the hand into
the paper exit gate during tray motion up or down,
the paper exit gate is equipped with a shutter. The
shutter is driven by the reverse motion of the paper
pressure motor (M707), closing the paper exit gate
when the tray is in motion.
Paper pressure motor (M707)
Shutter
REVISED EDITION
1
[3]
Conveyance is accomplished by the drive force of the
M701 (paper conveyance motor), which is transmitted to
the conveyance rollers. The M701 is linked with the main
body, so that rotation is set to low or high speed according
to the conveyance movement during copying.
The M701 is controlled by the FS CB (FS control board).
Related signals are provided by the PS702 (paper
entrance detect PS), PS717 (conveyance cover open/
close detect PS) and the MS701 (front door switch) and
PS3 (paper exit PS) of the main body.
1.
1
DATE
2-3
May 2000

Conveyance control

5VDC
PS3
PS3
SGND
24VDC
24VDC
24VDC
5VDC
5VDC
SGND
SGND
PGND
PGND
PGND
SGND
SGND
M ACK
SGND
S REQ
M RXD
SGND
S ACK
M REQ
SGND
M TXD
MAIN BODY
Operation
As paper passes by the PS3 of the main body, the
M701 conveys the paper at a low speed in relation
with the paper exit velocity of the main body. When
the end of the paper passes through the PS3, the
M701 then conveys the paper at high speed. The
M701 again changes to low speed after the specified
period of time when the end of the paper passes
through the PS702, ready to convey the next sheet of
paper.
PAGE
2-3
FS-107
24VDC
24VDC
M701 OUT A
M701
M701 OUT A
M701 OUT B
M701 OUT B
5VDC
PS702 PS702
SGND
5VDC
PS717 PS717
SGND
24VDC
MS701
MS701
FS CB
METHOD
REPLACEMENT