6-20 Phaser 6121MFP Service Manual
Adjustments and Calibrations
ADF Main Reg
Function
To adjust for variations in the accuracy of all parts and their mounting accuracy by
varying the scanning start position in the main scanning direction when using the
Automatic Document Feeder.
Use
When the Image Processor Board or the original glass is replaced, or when a new
Auto Document Feeder Unit is mounted.
Use this command after performing the Scanner Sub Zoom and the ADF Sub
Zoom adjustments.
Adjustment Specification
Adjust the amount that widths A and B in the copy of the Test Pattern 1 so that
the following specification is met.
Default Setting
0 mm
Adjustment Range
-5.0 mm to +5,0 mm, Step: 0.5 mm.
Settings/Procedure
1. Print Test Pattern 1 (page 6-32).
2. Enter the Adjustment menu in the service mode.
3. Select ADF Main Regist and press the OK button.
4. Place the test pattern into the Automatic Document Feeder and make a test
copy.
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