2WA/2NJ/2RK-1
9-14
When maintenance item U411 (Automatic adjustment in the scanner) is run using the specified original (P/N 7505000005), the fol-
lowing adjustments are automatically made:
Scanner magnification adjustment in the sub scanning direction (U065)
Adjusts the scanner leading edge registration (U066)
Adjusting the scanner center line (U067)
Chromatic aberration in the main scanning direction
Chromatic aberration in the sub scanning direction
MTF correction
Input gamma in color mode
Color correction matrix
Input gamma in monochrome mode
When maintenance item U411 (Automatic adjustment in the scanner) is run using the specified original (P/N 302AC68243), the fol-
lowing 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.
*:DP adjustment original (ChartB)
Adjusting the DP sub scanning magnification (U070)
Adjusting the DP leading edge registration (U071)
Adjusting the DP center line (U072)
When maintenance item U411 (Automatic adjustment in the scanner: DP Auto Adj) is run using the specified original, the following adjustments are automatically made:
Adjusting the DP sub scanning magnification (U070)
Adjusting the DP leading edge registration (U071)
Adjusting the DP center line (U072)
When maintenance item U415 (Print Position Auto Adjust) is run using the specified original, the following adjustments are automatically made. (See page P.6-38)
Adjusting the printer leading edge registration (U034)
Adjusting the printer center line (U034)
Adjusting the printer margin (U402)
11
Adjusting the leading edge regis-
tration
(Adjustment of reading)
Changes the original scan start
timing.
U066
U071
Front
Front Head
Back Head
P. 6 - 5 6
P. 6 - 6 1
1. Press the Start key.
2. Press the System Menu key.
3. Place an original and press the Start key.
(Test copy output)
4. Press the System Menu key.
5. Select the adjustment content.
U066: [Front]
U071: [Front Head] or [Back Head]
1. By using the [Left/Right],[+/-]
cursor or the numeric keys,
change the setting value.
2. Press the Start key to set the
setting value.
Press the [Stop] key.
U066: When using on the contact glass
*When the setting value is increased, the image
moves forward.
U071: When using document processor
*Back adjustment selects [Back Head] at the
time of duplex mode.
*When the setting value is increased, the image
moves forward.
Adjusting
order
Item Image
Maintenance mode
Page
Setting procedure
Remarks
Item No. Mode Method Setting
Image quality
Items Specifications
100% magnification Printer: ±0.8%
Copy: ±1.5%
Using DP: ±2.0%
Magnificaiton Copy: ±2.0%
Using DP: ±2.5%
Lateral squareness Copy: ±2.0mm/200mm
Using DP: ±2.5mm/200mm
Leading edge timing Print: 2.0 mm or less
Copy: 2.0mm or less
Using DP: 2.5mm or less
Skewed paper feed
(left-right difference)
Print: 1.0mm /100mm or less
Copy: 1.0mm /100mm or less(table)
1.5mm/100mm or less(document processor?
Lateral image shifting Print: ±2.0mm or less(cassette)
±3.0mm or less(MP tray)
Copy: ±2.0mm or less(cassette)
±3.0mm or less(MP tray)
Using DP: ±2.0mm or less(cassette)
±3.0mm or less(MP tray)
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