Chapter 88-31F-8-50The 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, andmoves 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 aspecific 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 fromthe number of drive pulses (1 pulse = about 0.16 mm) of the motor.Drive By the horizontal registration motor (M15)Position measurement By controlling the horizontal registration motor pulses (1 pulse = about 0.16 mm)Related service mode COPIER > ADJUST > FEED-ADJ > ADJ-REFERelated error code E051: The home position cannot be detected within a specific period of time.Moves throughthe sensor.paperHorizontal registrationsensor (PS18)Horizontal registration motor (M15)
