Operational Description, General Operation

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	CN203		CN211
PFC
PWA	CN204	+24V	CN212
	CN204		CN212

ADU PWA

CN216 CN215

CN217 CN214 CN213

ADU

FDMA-D

M ADU motor (Lower)

EXMA-D

M ADU motor (Upper)

ADUFL

ADU paper jam sensor (Lower)

ADUFU

ADU paper jam sensor (Upper)

ADUCOVSW

ADU cover open switch

ADU 03-02-01

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.

3 - 1

MD-0101 OPERATIONAL DESCRIPTION