The pickup roller unit is butted against the original, and the pickup roller is rotated to pick up an original. The pickup roller unit is moved up/down by the pickup

motor (M3), and the pickup roller is rotated by the separation motor (M4) and the separation clutch (CL).

Originals are separated by the separation roller and the separation belt with the help of the feeding roller. The rollers and the belt are driven by the separation motor

(M4) and the separation clutch (CL).

The separation assembly is equipped with a separation sensor (S4) and a skew sensor (S5) to monitor the movement of originals.

2.4.2 Moving Up/Down the Pickup Roller Unit

a. Outline

The DADF is equipped with two pickup roller units, each designed to move up/down between home position and the surface of the stack of originals. The pickup

roller unit is moved up/down by the pickup motor (M3).

The pickup roller unit stops at either of the following positions; positioning is controlled by means of pulses from sensors and the pickup motor.

Feeding roller

Separation sensor (S4)

Skew sensor (S5)

Separation belt

Manual set sensor (PI12)

Sensor flag

F-2-20

Pickup rollers

Separation roller

Feeding roller