Utax P-4030 MFP Service Manual page 476

When maintenance item U411 (Automatic adjustment in the scanner) is run using the specified original (P/N 302NM94340)
the following adjustments are automatically made:
Adjusting the scanner magnification (U065)
Adjusting the scanner leading edge registration (U066)
Adjusting the scanner center line (U067)
When maintenance item U411 (Automatic adjustment in the DP) is run using the specified original (P/N 302NM94330)
the following adjustments are automatically made:
* : When running this test chart, you first must clean the feed rollers with alcohol and ensure the DP width guides
are correctly positioned against the original.
Adjusting the DP magnification (U070)
Adjusting the DP leading edge registration (U071)
Adjusting the DP center line (U072)
Image quality
Item
100% magnification
Enlargement/reduction
Lateral squareness
Leading edge registration
Skewed paper feed
(left-right difference)
Lateral image shifting
2-3-18
2NM/2NX/2NY/2NZ/2P0/2P6-1
Specifications
Print: ±0.8%
Copy: ±1.5%
Using DP: ±2.0%
Copy: ±2.0%
Using DP: ±2.5%
Copy: ±2.0mm/200mm
Using DP: ±2.5mm/200mm
Print: 1.5 mm or less
Copy: 2.5mm or less
Using DP: 2.5mm or less
Print: 1mm /100mm or less
Copy: 1mm /100mm or less
Using DP: 1.5mm /100mm or less
Print: 2.0 mm or less
Copy: 3.0mm or less
Using DP: 3.0mm or less