Automatic Thickness (Ats) Calibration - Xerox Phaser 7400 Service Manual

Automatic Thickness (ATS) Calibration

The thickness of media being printed on can affect print-quality. The Phaser 7400
measures the thickness of print media and adjusts the Fuser temperature and print
speed accordingly. Perform ATS calibration if the NVRAM, Media Thickness Sensor,
or Registration Assembly are changed.
Warning
In order to properly calibrate the Media Thickness Sensor, you MUST use
Phaser 35-Series Premium Transparencies. Using any other transparency can
cause significant damage to the Fuser and fail the adjustment.
ATS 4-Sheet Calibration
1. Enter Service Diagnostics.
2. Scroll to Adjustments/Calibrations, and press OK.
3. ATS 4-Sheet
Select
4. Edit Thickness
Select
5. Select Microns, and press OK.
6.
The printer enters the Edit Thickness Data menu.
7.
Change the thickness value to 140, using the Up Arrow / Down Arrow buttons
to change the first number to 1. Press the Help (?) key to move the cursor to the
second digit, then the third digit. Once the value is set to 140, press OK.
Note
The value set in Step g, 140 microns, is the average thickness of Phaser 35-Series
Premium Transparencies. Using another type of transparency produces
inaccurate results.
8. On the Control Panel, select Execute Thickness Calibration, and then press the
OK button.
9. When prompted open Tray 1 (MPT) and load 5 sheets of Phaser 35-Series
Premium Transparency.
10. The printer indicates that it is ready to run the calibration and picks 3 consecutive
sheets of media from Tray 1 (MPT), using them to calculate a reference
thickness.
11. After the reference is set, the printer picks and measures the fourth sheet to test
the calibration. If the fourth sheet falls within the expected thickness range, the
printer displays Thickness Calibration Passed.
12.
If the fourth sheet does not measure as expected, the calibration displays
Thickness Calibration Failed. Perform the ATS 4-Sheet Calibration again.
Perform the calibration procedures until they pass.
Note
If a failure occurs, you may need to power cycle the printer to recover.
6-4
Calibration, and press OK.
Data, and press OK.
Phaser 7400 Color Printer Service Manual