Canon Finisher-R1 Service Manual

Also see for Finisher-R1: INSTALLATION PROCEDURE Circuit Diagram General Timing Chart/General Circuit Diagram INSTALLATION PROCEDURE Service manual

Contents

Canon Finisher-R1 Service Manual Manual pdf 42 page image

Chapter 22-182.5 Stack Tray Operation2.5.1 Tray Operation 0003-4561This equipment has two delivery trays. The upper tray is called tray 1 and the lower tray is called tray 2. The upperand lower tray can move up and down independently.The trays are moved up and down by the tray 1 shift motor (M37) and tray 2 shift motor(M38).Tray 1 paper sensor (PI42) and tray 2 paper sensor (PI43) are provided to detect the presence of the paper stacked onthe tray.The home position of tray 1 is detected by the paper surface sensor (PI41) and the home position of tray 2 is detectedby the tray 2 paper surface sensor (PI48). The home position is the top surface of the paper if papers are alreadystacked on the tray, or the position where the edge of the tray is detected if no paper is stacked. When the power isturned on, the finisher controller PCB drives the tray 1 shift motor (M37) and tray 2 shift motor (M38) to return thetray to home position. If the tray is already at home position, it is moved out of the home position once and thenreturned to the home position once more. If both tray 1 and tray 2 are at home position, this is performed for tray 1and then for tray 2. If the tray specified by the host machine is tray 2, the finisher controller PCB shifts the tray sothat tray 2 is at delivery port.When paper is stacked on the tray, a prescribed number of pulses drive tray 1 shift motor (M37) or tray 2 shift motor(M38) and the tray is lowered. Then the tray returns to home position to prepare for the next stack.The upper and lower limits of the tray are detected by three area sensors (PS981, PS982, and PS983) on tray 1 andtray 2 shift area sensor PCB. The finisher controller PCB stops driving the tray 1 shift motor (M37) and tray 2 shiftmotor (M38) when it detects the upper or lower limit of the tray. Also, the ON/OFF combinations of the area sensors(PS981, PS982, PS983) are used to detect over-stacking according to the stack height for large size and mixedstacking. The following figure shows the items detected with the ON/OFF combinations of the area sensors (PS981,PS982, PS983).The finisher controller PCB stops supplying +24V to the tray 1 shift motor (M37) and stops the finisher operationwhen tray 1 switch (MS33) turns ON.