The horizontal registration sensor moves to the start position (A4 detection position) when the main power switch is turned on or the front cover is closed, and

moves to a detection position to suit the size of paper expected in the lower feeding assembly. Its position of etection is "paper width +2 mm."

The paper detection mechanism starts when paper moved to the lower feeding assembly has moved past the confluence sensor (PI 15) and has been moved over a

specific distance (about 10mm past the horizontal registration sensor).

The position of paper is detected with reference to the start position and by finding out the difference between the start position and the actual paper position from

the number of drive pulses (1 pulse = about 0.16 mm) of the motor.

By the horizontal registration motor (M15)

By controlling the horizontal registration motor pulses (1 pulse = about 0.16 mm)

COPIER > ADJUST > FEED-ADJ > ADJ-REFE

E051: The home position cannot be detected within a specific period of time.

Horizontal registration motor (M15)

paper

Horizontal registration

sensor (PS18)

Moves through

the sensor.

F-8-50