Xerox Phaser 6121MFP Service Manual page 279

Phaser 6121MFP Service Manual
Procedure
1. Print Test Pattern 1 from Tray 1 using letter or A4 media.
2. Place the test pattern vertically on the platen and make a copy.
3. Check the copy against the print.
4. If the widths of A and B are out of specification (0 mm ± 2.0 mm), adjust the
value.
Note
If the width of A is less than the width of B on the copy of TP 1 compared
to the printed version, increase the setting.
5. Press the OK button.
6. Using the Up or Down Arrow buttons, adjust the setting, then press the OK
button.
7. Check registration adjustment by repeating steps 1 through 6. Continue
adjustment until the specification is met.
Scan Sub Regist
Function
To vary and adjust the print start position in the sub-scanning direction.
Use
If the image on the copy deviates in the sub scan direction, or when the Laser Unit
or original glass has been replaced.
Note
Perform after the Prn Main Regist adjustment has been performed.
Adjustment
Adjust the width of C in the printed Test Pattern 1 so that the following
specification is met.
Specification
20 ± 2.5 mm
B
A
s6121mfp-321
Adjustments and Calibrations
6-17