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1155SBM2002A
20-2. Turnover Control
The Turnover Motor is a step motor. Forward rotation transports paper downward,
while reverse rotation transports paper towards the lower-paper-exit tray/duplex unit
side.
The Turnover Feed Entry Sensor controls the timing of the Turnover Motor forward/
reverse switching. For the first sheet of paper, the Turnover Motor direction is
switched a specified interval after the sheet passes the Turnover Feed Entry Sen-
sor. (Specifically, the direction is switched at the point where the trailing edge of the
sheet moves beyond the turnover film.)
For subsequent sheets, the Turnover Motor direction is switched a specified interval
after the Turnover Feed Entry Sensor detects the sheet's leading edge.
In the event of a jam anywhere in the copier, the Turnover Feed Jam Sensor detects
sheets that are left in the turnover section of the copier.
= If Turnover Roller is separated from drive roller =
Turnover Feed
Entry Sensor
(PC11)
Forward
Turnover Motor
Brake
(M6)
Reverse
= If Turnover Roller is engaged with drive roller =
Turnover Feed
Entry Sensor
(PC11)
Forward
Turnover Motor
Brake
(M6)
Reverse
CONTROL SIGNAL UNBLOCKED
PC11
PC57
CONTROL SIGNAL
M6
H
First sheet
L
T1: 430msec
*Brake Time: 50ms
H
First sheet
L
T1: 430msec
*Brake Time: 50ms
PJ6B-14B
PJ6B-11B
PJ9B-6~9B
T1
T2: 570msec
T1
T2: 25msec
BLOCKED
L
L
ON
Pulse Output
M-126
Second sheet
T1
T2
1155T34MCB
Second sheet
T1
T2
1155T35MCB
WIRING DIAGRAM
H
E-1
H
F-1
OFF
WIRING DIAGRAM
G-1
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