Xerox Phaser 8400 Service Manual

2-30 Phaser 8400/8500/8550 Color Printer
Duplex Printing
When duplex printing, the exit rollers pull the paper to a predetermined location, such
that the trailing edge of the paper is adjacent to the exit rollers. Then, the exit rollers
pull the paper back into the duplex path. The paper deskews against a non-rotating
deskew nip. From this point on, the print is processed through the paper preheater and
transfix system to the exit tray in the same manner as a single-sided print.
Phaser 8500/8550 printers include a preheater lift solenoid that increases the physical
spacing between the preheater plates when printing the second side of duplex prints.
The increased spacing prevents the paper from rubbing as hard against the plates,
which can cause smearing to occur. Since the Phaser 8500/8550 preheater operates at
a higher temperature than the Phaser 8400, the solenoid is not needed on Phaser
8400 printers.
s8500-028
Exit Roller
Duplex Roller
Preheater Lift Solenoid
(Phaser 8500/8550 Only)
Exit Sensor
Deskew Sensor
Preheat Sensor
Duplex Roller
Strip Sensor

Xerox Phaser 8400 Specifications

General

Brand	Xerox
Model	Phaser 8400
Category	Printer
Language	English