Operational Description; General Operation; Block Diagram - Toshiba MD-0101 Service Manual

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

PFC
PWA
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.
October 2000 © TOSHIBA TEC
+24V
ADU
PWA
ADU
FDMA-D
ADU motor ( Lower )
M
EXMA-D
ADU motor ( Upper )
M
ADUFL
ADU paper jam sensor ( Lower )
ADUFU
ADU paper jam sensor ( Upper )
ADUCOVSW
ADU cover open switch
3 - 1 MD-0101 OPERATIONAL DESCRIPTION
ADU 03-02-01