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102 MFP unit explanation ENWW
a high speed, M6 (loop roller) is turned
off to form a paper loop in the
registration section.
b Second paper feed control
After formation of a paper loop under
loop control, MC1 (registration) is turned
on to transmit the drive force of M5
(conveyance) to the second pick roller,
starting the second paper feed.
c Image position correction control
Mis-centering of the paper fed from
each tray is detected by PS70 (paper
mis-centering) and the paper leading
edge timing is detected by PS43
(leading edge) and they are corrected at
the time of image write.
A contact image sensor is used as
PS70 (paper mis-centering). The paper
edge position is detected by paper
mis-centering sensors. Based on the
edge position information, the image
write position is shifted to correct
mis-centering and leading edge timing
at the time of image write. PS70
operates after a lapse of the specified
time from turning on of PS43 (leading
edge).
2 Signals
a Input signals
1 LOOP_PS (P36 to PRCB)
Loop formation reference timing
detection signal.
The leading edge or trailing edge of
paper is detected.
[L]: Detected
[H]: Not detected
2 LD (M5 to ADUDB)
M5 fault detection signal
[L]: Normal
[H]: Abnormal
3 DEF_VIDEO (PS70 to ADUDB)
PS70 (paper mis-centering) sensor
output signal
4 2ND_PS (PS44 to ADUDB)
Second paper feed reference timing
detection signal
[L]: Detected
[H]: Not detected
5 EDGF_PS (PS43 to ADUDB)
Paper leading edge detection signal
[L]: Detected
[H]: Not detected
6 REG_PS (ADUDB to PRCB)
Paper leading edge detection signal.
[L]: Detected
[H]: Not detected
b Output signals
1 START/STOP (ADUDB to M5)
M5 (conveyance) drive control signal
[L]: M5 on
[H]: M5 off
2 2NDM_CLK, CLK (PRCB to ADUDB
to M5)
M5 (conveyance) clock signal
3 2ND_MC (ADUDB to MC1)
MC1 (registration) drive control signal
[L]: MC1 on
[H]: MC1 off
4 DEF_SI (ADUDB to PS70)
PS70 (paper mis-centering) start
pulse
5 DEF_CLK (ADUDB to PS70)
PS70 (paper mis-centering) drive
clock signal
6 DEF_LED (ADUDB to PS70)
PS70 (paper mis-centering) LED
control signal