Xerox Phaser 7300B, Service Manual

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4-118 Phaser 7300 Color Printer Service Manual
Automatic Thickness Sensor (ATS)
Calibration Procedure
The thickness of media being printed on can affect print-quality. The Phaser 7300
printer has the ability to measure the thickness of print media and adjust the fuser
temperature and print speed accordingly.
This procedure is part of the ATS sensor disassembly/reassembly procedure. The
Anvil “adjustment” is performed prior to reinstalling the Pickup Plate and Pickup
Cover Assemblies. After reinstalling the Pickup Plate and Pickup Cover Assemblies,
the 4-Sheet Calibration procedure must be completed through service diagnostics.
Warning: In order to properly calibrate the ATS Sensor, you MUST
use Phaser 35-Series Premium Transparencies. Using any
other transparency will cause significant damage to the
fuser and fail the adjustment.
1. ATS Anvil Adjustment
a. Open the Right Cover - Door A and manually feed a sheet of
transparency through the MPT up to about 12 mm (.5 in.) past the
Registration Rollers A, see diagram below.
b. To adjust the anvil, loosen the screw and slide it up or down as
required, until the anvil just touches the transparency. The anvil should
be tight against the bottom of the transparency, without causing the
sheet to bow.
Warning: If the anvil is set too high, media jams at registration
rollers can occur. If the anvil is set too low, the sensor can
measure an incorrect media thickness.
Note: Ensure the Transfer Unit Belt Entrance Sensor does not
interfere with the transparency sheet, holding the Anvil
out of proper adjustment.
S7300-115