Panasonic Workio DP-C305, Service Manual

Page: 786 / 920

786
DP-C405/C305/C265
FEB 2008 Ver. 1.1
12.1.2.4. Delivery Tray Operation
12.1.2.4.1. Outline
The Machine has a delivery tray in the Finisher Unit, and a bind tray in the Saddle Unit.
The Bind Tray in the Saddle Unit is of the fixed type, and all the folded paper stacks are delivered to this
tray. This tray has a bind tray sensor (PI13) to detect presence/absence of paper.
The Delivery Tray in the Finisher Unit is moved up and down using a shift motor (M6).
The Finisher has a tray paper sensor (PI8) to detect presence/absence of paper on the Stack Tray.
The Home Position Sensor of the Delivery Tray is detected by the Paper Surface Sensor (PI19). When
paper has already been stacked on the Delivery Tray, the home position is on the top surface of the stacked
paper. When paper has not yet been stacked on the Delivery Tray, the home position is at the position
where the edge of the Delivery Tray is detected. At power-on, the Finisher Controller PCB drives the Shift
Motor (M6) to return the Delivery Tray to the home position.
When the paper coming from the Processing Tray is stacked on the Delivery Tray, the Shift Motor is driven
a specified number of pulses, causing the Delivery Tray to descend. Clock pulses are detected by the Shift
Motor Clock Sensor (PI17). Then, the Delivery Tray returns to the home position for the next stacking
operation.
The upper limit of the Delivery Tray is detected by the Shift Upper Limit Sensor (PI15). When the Shift
Upper Limit Sensor (PI15) is turned ON, the Finisher Controller PCB stops the Shift Motor (M6) that is
ascending.
The lower limit of the Delivery Tray is detected by the Shift Lower Limit Sensor (PI16). When the Shift Lower
Limit Sensor (PI16) is turned ON, the Finisher Controller PCB stops the Shift Motor (M6) that is descending.
The Finisher Unit has a full stack sensor (PI24) to detect overstocking of large-size or mixed paper
according to the stack height.
Fig. 2-035
Shift Upper Limit Sensor
(PI15)
Shift Lower Limit Sensor
(PI16)
Paper Tray Sensor (PI8)
Shift Motor Clock Sensor
(PI17)
Paper Surface Sensor (PI9)
Edge
Delivery Tray
Full Stack Sensor (PI24)
Shift Motor (M6)