11 - 15
CZ180 / CV1860 Rev. 1.0
CHAPTER 11: SCANNING SECTION
ADJUSTMENT
1. AF Scan Start-Position Adjustment
Checks and Procedure
1) Scan and print an Original with no white margin on the top.
2) Looking at the printed image, confirm that top 4mm plus or minus 2mm of the Original is erased.
3) If the area erased is out of the range, use following Test Mode to make the adjustment.
Test Mode No. 0381 [AF scan start-position adjustment]
This Test Mode adjusts the amount of the top image skipped in the scanning operation.
Adjustable range: -20 to +20 (1 = 0.1mm) + number increases the amount of the image erased.
Default setting: 0 (0mm)
2. AF Horizontal-Scan Position Adjustment
Checks and Procedure
1) Place B4-size papers on the paper feed tray (or larger papers if B4-size paper is not available),
making sure that the side guide plates are firmly against the papers.
2) Use Test Chart No.14 and make master and print.
3) Fold the printed paper in half (vertically) and confirm that the center-line of the image is within
plus or minus 3mm from the center fold.
4) If the center-line of the printed image is out of the range from the center fold of the paper, make
adjustment using following test mode.
Test Mode No. 0380 [AF Horizontal-Scan Position Adjustment]
This Test Mode adjusts the center position in scanning the Original.
Adjustable range: -30 to +30 (5 = 0.5mm) + number moves the image to the LEFT.
Default setting: 0 (0mm)
3. AF Read Pulse Motor Speed Adjustment (Elongation & Shrinkage)
Checks and Procedure
1) Use Test Chart No.14 and make master and print.
2) Compare the prints with the Original. Confirm that the elongation or shrinkage of the prints
against the Original is within 1.4% (Example: If length of 300mm is used for the comparison, the
elongation or shrinkage should be within 4.2mm)
3) If the elongation or shrinkage is more than 1.4%, make an adjustment using following Test Mode.
Test Mode No.0382
This Test Mode adjusts the speed of the Original scanning (speed of the Read pulse motor).
Adjustable range: -100 to +100 (1 = 0.1%) + number elongates the image.
Default setting: 0 (0%)
Rough guidance in changing 1 mm:
A3 : plus or minus 0.2%
B4 : plus or minus 0.3%
A4 : plus or minus 0.3%
Ledger : plus or minus 0.2%
Legal: plus or minus 0.3%
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