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October 2000 © TOSHIBA TEC 3 - 1 MD-0101 OPERATIONAL DESCRIPTION
3. OPERATIONAL DESCRIPTION
3.1 General Operation
The ADU is a unit which turns over printed paper. Installation of the unit enables duplex printing on paper.
No paper can be stacked in the ADU.
3.2 Block Diagram
The ADU has three sensors and two motors as shown above. One-side-printed paper passes through
the ADU unit to be turned over and returned to the copier. The motor drive circuits (IC1, IC2) only are
installed on the ADU PWA.
The motor signals (EXM-A - D, FDM-A - D) are amplified by IC1 and IC2 and drive the motors. The signal
of each sensor passes through the ADU PWA and is connected as it is to the PFC PWA.
+24V
ADUFL
ADU
PWA
ADU paper jam sensor
(
Lower
)
ADUFU
ADU paper jam sensor
(
Upper
)
ADUCOVSW
ADU cover open switch
FDMA-D
ADU
EXMA-D
PFC
PWA
ADU motor
(
Lower
)
M
ADU motor
(
Upper
)
M
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ADU 03-02-01