Color Calibration; Margin Calibration; Automatic Density Control (Adc) Calibration - Xerox Phaser 7400 Service Manual

Calibrations

Color Calibration

Color calibration procedures adjust the printer for optimal color output. Color settings
may need adjustment:
On initial printer setup.
When Toner Cartridges and Imaging Units are replaced.
When the printer environment changes.
If the printer has been stored for some time.
If the printer has not received significant use.
There are two procedures: lighten/darken colors and balance colors.
If the overall image appears either too light or dark, use the lighten/darken colors
procedure. If a finer adjustment of the primary colors, cyan, magenta and yellow, is
needed, continue with the balance colors procedure.
Print the Calibrate Colors Tutorial page from the printer's Control Panel
Troubleshooting
detailed on the page.

Margin Calibration

The Calibrate Margins menu allows you to adjust the printer's imaging area relative to
the edges of the paper. The imaging area is shown as a dashed rectangle on the front
side of the print, the printer will not print outside this rectangle. The dashed rectangle
should line up with the two solid lines printed on the back side of the page. Hold up to
strong light for verification.
Print the Calibrate Margins page from the
Problems menu and follow the instructions detailed on the page.

Automatic Density Control (ADC) Calibration

To insure optimal print quality, each color image must be predictable and repeatable.
Therefore, the print engine must know how much toner to use to create the proper
color density. The ADC sensor is built into the middle of the color registration sensor
assembly.
6-2
--> Print Quality Problems menu and follow the instructions
Troubleshooting
Phaser 7400 Color Printer Service Manual
--> Print Quality