8 If the printer does not meet the skew specifications, adjust the reference edge as specified in “Media aligner roller
adjustment” on page 283 or adjust the printhead as specified in “Polygon printhead mechanical registration
adjustment” on page 284 as needed.
9 Check the registration by looking at the dots at the edges of the page. Adjust as needed.
Copy skew correction
This test is critical when cut paper is being used to align the ADF skew during reworks. Pallets of quality paper may be
found with more than 2 mm of skew.
1 Check the media squareness. See “Media squareness check” on page 291.
2 Make sure the guides in the paper tray are properly aligned.
3 Check the base printer skew and registration.
4 Plug the printer into the power source and power the printer on in normal printing mode.
5 Measure CopyL1, CopyL2, CopyT1, CopyT2, CopyR1, CopyR2, CopyB1, and CopyB2 data points as shown in the
following image.
6 Determine the following calculations:
• CopyL2-CopyL1 = ___
• CopyR2-CopyR1 = ___
• CopyT2-CopyT1 = ___
• CopyB2-CopyB1 = ___
7463
Repair information
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