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Stack Tray Unit
Stack Tray Shift Operation
The paper delivered from the processing tray by the assist guide is then stacked on the stack tray.
The stack tray is moved up and down by the stack tray shift motor (M6).
Before start of printing, the tray shift motor (M6) is driven to move the stack tray up/down to the position where the stack tray
paper height sensor (PS9) detects the stack tray top surface.
After paper is delivered from the processing tray, the stack tray moves down by the specified amount. Next, the stack tray is
moved up until the stack tray paper height sensor (PS9)
detects the stack tray top surface (top surface of the stacked paper).
The lower limit of the stack tray is detected by the stack tray lower limit sensor (PS10).
Stack Tray
Paper Height Sensor (PS9)
Stack Tray Paper Height Detection Control
The height of the paper stack on the stack tray is detected by the stack tray paper height sensor (PS9). After paper has been
delivered to the stack tray, the stack tray moves down by the specified amount.
Next, the stack tray moves up until the stack tray paper height sensor (PS9) turns on (the top surface of the paper on the stack
tray is detected).The tray is moved down once again and stopped where the stack tray paper height sensor (PS9) turns off.
The above operations are repeated each time paper is delivered to the stack tray to detect the paper height.
However, there are situations in which paper height detection is not performed depending on the print conditions.
Stack Tray
Stack Tray
Lower Limit Sensor (PS10)
Stack Tray
Paper Height Sensor (PS9)
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2. Technical Explanation
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