Stack delivery operation
The stack is ejected each time 2-4 large sheets or 2-6 small sheets are offset on the processing
output bin. The swing motor turns and the swing guide descends causing the upper and lower stack-
delivery rollers to hold the stack. The stack-delivery motor turns the stack-delivery roller and return
roller. At the same time, the stack trailing-edge assist motor starts the stack trailing-edge assist guide,
and the stack held by the stack-delivery rollers is moved forward. When the stack trailing-edge assist
motor reverses, the stack trailing-edge assist guide returns to home position. The stack-delivery
motor then ejects the stack with the upper and lower stack-delivery rollers.
Figure 1-90 Stack delivery
Stack trailing-edge
assist guide
Return roller
Stack ejection roller
Swing guide
Offset operation
The job-offset operation offsets the paper stack to the front or rear when ejecting to sort the paper
stack. The forward/backward movement of the sheet delivered to the processing output bin is
controlled by the front-aligning plate and rear-aligning plate. The aligned copies are stapled or ejected
according to the signal from the product. When the power is turned on, the stacker controller PCA
drives the aligning plate front motor (M103) and aligning-plate rear motor (M104) to return the two
aligning plates to the home position. The name and function of motors and sensors used by the stack
job-offset function are shown below.
Figure 1-91 Motors and sensors for stack job offset
Paper
Light-shielding plate
Rear aligning plate
home position sensor (P107)
Front aligning plate
home position sensor (P106)
Light-shielding plate
(FRONT)
Front aligning plate motor (M103)
Rear aligning plate motor (M104)
Aligning plate
(front)
Aligning plate (rear)
134 Chapter 1 Theory of operation ENWW
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