Xerox Phaser 4500 Service Manual page 73

Phaser 4500/4510 Service Manual
Paper Transport Path
When the stacker is installed on the printer, the paper is transported as shown
in the illustration on page 2-6. The main components that transport paper
through the stacker are shown in the diagram on page 2-4
Functional Components
Offset output is enabled by mounting the stacker on top of the 500-sheet
paper exit.
Stacker motor assembly
stacker roller, which transport printed paper to the stacker tray.
Offset motor assembly
cam.
Gate solenoid assembly
the standard and stacker paper output trays. When the gate solenoid
assembly activates, the solenoid armature pushes the stacker Gate Link to
operate the stacker exit gate, which reroutes the paper to the stacker paper
output tray.
Stacker PWBA
HVPS/engine logic board and information from sensors and switches, and
controls paper transport through the stacker.
Stacker rear cover switch
open.
Stacker sensor
stacker.
Stacker full sensor
when the stacker output tray is full, using the stack full actuator.
Offset Sensor
offset operation, using the actuator in the Offset Chute.
Lower stacker roller
Fuser to the Upper stacker roller.
Upper stacker roller
Lower stacker roller into the stacker paper output tray.
Offset chute assembly
and Cam gear to move right and left during paper output to offset the output of
the printer.
This motor drives the lower stacker roller and upper
This motor drives the offset chute assembly via the gear
This solenoid switches the output paper path between
The CPU on the stacker PWBA receives instructions from the
This switch detects when the stacker rear cover is
This sensor detects the presence or absence of paper in the
This sensor is located on the stacker PWBA, and detects
This sensor is located on the stacker PWBA, and detects an
This roller transports the printed paper coming out of the
This roller discharges the printed paper sent from the
This assembly is driven by the offset motor assembly
Theory of Operation
2-37