Xerox Phaser 6121MFP Service Manual page 294

Adjustments and Calibrations
Print Test Pattern
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Three test patterns are available for making adjustments. They are Pattern 1,
Pattern2, and Pattern3.
To make a test print:
1. In Service Mode, select Function > Prn Test Pattern.
2. Select the tray that you want to test, and then select the desired test pattern.
Pattern 1 Function
To print the test pattern for adjusting the image.
Pattern 1 Use
If there is tilt or when registration or zoom ratio adjustments are performed.
Pattern 1 Procedure
1. Select the paper tray.
2. Select Pattern1.
3. Press OK to print the test pattern.
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Phaser 6121MFP Service Manual