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12 Post insertion unit explanation ENWW
c Sheet conveyance
When the sheet fed from the paper
feed unit at low speed turns
PS201/PS206 (PI passage /U/L) on,
M203 (PI conveyance) changes its
rotating speed to high-speed. At this
time, as MC203 (registration) turns
off, the sheet is pressed against the
conveyance rollers /U/L to form a
loop. MC203 turns on when a
specified time has passed since
PS201/PS206 turned on, and the
drive force of M203 is transmitted to
the conveyance rollers /U/L. This
causes the sheet whose bend is
corrected by loop formation to be
conveyed into finisher.
When the sheet turns PS206 off,
MC203 turns off after a specified
time. With the same timing, MC203
changes its rotating speed to
low-speed and comes into feeding
operation for the next sheet.
d Detection of sheet size
VR201/VR202 (sheet size/U/L) detect
the sheet width.
Sheet length is detected by the
combination of PS203/PS208 (sheet
setting/U/L) and PS212 (sheet
size/L).
2 Signals
a Input signals
1 PS201 IN (PS201 to PIDB)
Detection signal of sheet passage on
upper tray
L: Sheet passed
H: Sheet not passed
2 PS202 IN (PS202 to PIDB)
Detection signal of no sheet on upper
tray
L: Sheet detected
H: Sheet not detected
3 PS203 IN (PS203 to PIDB)
Detection signal of sheet setting on
upper tray
L: Sheet detected
H: Sheet not detected
4 PS204 IN (PS204 to PIDB)
Detection signal of upper limit of
up/down plate/U
L: Positioned at upper limit
H: Not positioned at upper limit
5 PS205 IN (PS205 to PIDB)
Detection signal of lower limit of
up/down plate/U
L: Positioned at lower limit
H: Not positioned at lower limit
M203
(PI conveyance)
MC202
(conveyance/L)
PS210
(tray lower limit/L)
PS207 (no sheet/L)
SD202
(sheet feed/L)
PS209 (tray upper limit/L)
Up/down plate/L
M202 (tray up/down/L)
Width regulation
plates
VR201 (sheet size/U)
VR202 (sheet size/L)
VR212 (sheet size/L)
PS208 (sheet setting/L)
PS203 (sheet setting/U)