MAIN TRAY Q5686A/Q5687A 2.2 Operation 2.2.1 Tray up/down control A. Tray up/down operation The up/down wire is wound up by the driving force of a worm gear provided on the shaft of the tray up/ down motor (M703). The main tray goes up or down depending on the wind-up direction. The main tray goes up when the up/ down pulley /L rotates clockwise as seen from the front, and goes down when it rotates counterclockwise. II UNIT EXPLANATION B.
Paper detection The tray upper limit sensor (PS702) and the stapler paper exit upper limit sensor (PS707) maintain the dis- tance between the top face of paper in the main tray (the top face of the main tray when there is no paper exit) and the paper exit opening constant to prevent uneven paper exit. reaches the maximum loading capacity for each paper size. While in continuous copy, finisher soft counts the number of sheets discharge, and copy stops when it However, when discharged paper is removed while in copy, the tray goes up and the counter reset sensor (PS715) turns on. This resets the soft counter, thus allowing an unlimited paper exit.
The tray lower limit sensor (PS703) detects the lowest limit of the tray. And while in intermittent copy, PS703 is used to control the number of copies since the total number of sheets are not accumulated in the soft counter. C. Tray up/down control The up/down operation of the main tray is made by the clockwise or counterclockwise rotation of the tray up/down motor (M703). M703 is controlled by the finisher control board (Finisher CB). An finisher operation signal from the finisher allows the tray up/down motor (M703) to raise the tray until (1) Non sort/sort/group modes the tray upper limit sensor (PS702) turns on.
When paper passes through the main tray paper exit sensor (PS706), M703 lowers the tray. A specified period of time after PS702 turns off, M703 raises the tray again and stops it when PS 702 turns on. Repeat the above for each paper. [1] [2] Paper exit to the main tray Finisher operation start signal ON 2-12 [2] Main tray paper exit sensor (PS706) Main tray paper exit sensor (PS702) Tray up/down motor (M703) UP DOWN [1]