5/2011
8-13
Phaser 4600/4620 Printer Service Manual
Major IOT Assemblies
Principles of Operation
Revision - Xerox Internal Use Only
Duplex Unit
The Duplex Unit provides an area in the media path to flip the printed sheet over, and reinsert
the sheet back into the registration area to receive an image on the reverse side. The Duplex
Unit includes a media size switch to select fed media and provides 2-sided printing for media
fed from all available trays except envelopes.
Figure 3 Duplex Unit
Exit Assembly
The Exit discharges the printed paper out of the printer, sending it either to the Output Tray or
when installed, the optional Mailbox or Finisher.
Figure 4 Exit Assembly
Exit Assembly components include:
• Exit Rollers
These rollers eject paper to the Output Tray or feed an installed option.
• Exit Gate
The exit gate switches the media path between the Output Tray and installed Finisher or
Mailbox. When the exit gate is in its resting position, media is fed to the Output Tray.
When actuated by the exit gate solenoid, media is fed into the installed option.
• Full Stack Sensor
This sensor detects that the Output Tray is full, using an Actuator.
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General
Weight and Dimensions
