Adjusting the Zoom Ratio of the Image

Depending on the paper type, the heat generated by the fixing unit may cause the paper to expand or shrink slightly. In this case, images may also be enlarged or reduced accordingly. This function enables you to set the zoom ratio of the image for each paper, or enlarge the reduced image to match the zoom ratio of the image on the second side of the paper. You can adjust the zoom ratio of the image either by entering the enlargement/reduction ratio, or by entering the value of the test page you measured manually.
You can also make the adjustment by using the guide sheet or test page.
- When scanning with the feeder Adjusting the Image Position Using the Test Page (When Using a Feeder)
- When scanning with the platen glass Adjusting the Image Position Using the Guide Sheet (When Using the Platen Glass)
1
Press <Change> for <Adjust Image Position>.
2
Press <Do Not Use Scanner> or <Adjust Manually>.
This procedure is not necessary if the optional “Duplex Color Image Reader Unit-P” and “Sensing Unit-B” are not installed.
3
Press <Output Test Page>.
To adjust the image position on long sheets, print out a long sheet test page. The adjustment can be made more efficiently than with the test page printed out by <Output Test Page> under <Adjust Image Position>. (The long sheet test page is available from the online manual site.)
4
Enter the number of test pages to make, and press <Next>.
If the image position varies greatly, the accuracy of correction may be improved by printing several test pages and using an average of the measured length.
5
Select a paper source that contains a custom paper size, and press <Start Printing>.
The test page is printed.
6
Return to the <Adjust Image Position> screen -> set the zoom ratio.
If you enter the enlargement/reduction ratio (%):
Set the enlargement/reduction ratio (%) for <Zoom (f)> and <Zoom (d)> on <Adjust Image Position> screen, and press <OK>.
<Zoom (f)>:
Enlarges or reduces the image in the direction that is parallel to the feeding direction according to the inputted ratio.
<Zoom (d)>:
Enlarges or reduces the image in the direction that is perpendicular to the feeding direction according to the inputted ratio.
As necessary, try printing the test page again and then check the correction amount.
If you enter the value of the test page you measured manually:
Measure the length of the 'f' and 'd' marks on the test page manually.
Default value: f = 360.0 mm, d = 250.0 mm (for the long sheet: f = 450.0 mm, 550 mm, 650 mm, d = 250.0 mm)
Standard size
Long sheet
Standard size
If you print the test page using paper smaller than 270 mm x 380 mm, you cannot measure the length of 'f' and 'd' as the entire image will not be printed on the paper. In this case, calculate the expanding/reducing percentage by comparing the measured length of 'f/2' and 'd/2' with the default values (f/2: 180 mm, d/2: 125 mm). By using the calculated percentage, adjust the zoom ratio.
Long sheet
If you print the long sheet test page using paper smaller than 270 mm x 762 mm, the entire image will not be printed on the paper. Calculate the expanding/reducing percentage by comparing the measured length of 'd/2' with the default value (d/2: 125 mm). If 'f' is not printed entirely, measure the length of 'f' that is closest to the tail edge of the paper, and calculate the expanding/reducing percentage by comparing the measured length with the default values (f=450 mm, 550 mm, 650 mm). By using the calculated percentage, adjust the zoom ratio.
Press <Adjust Using Test Page>.
Enter the length of the test page on front and back sides, and press <OK>.
For example, if the measured length of <f> is 360.4 mm, enter 360.4. The difference in length (0.4 mm in this case), is reduced, so that the image is printed in the correct size.
<f>:
Enter the measured length of 'f' mark on the test page.
For the long sheet: Enter the input value calculated from the measured length of 'f' mark on the long sheet test page.
Input value = ((default 'f' value: 360 mm)/measured 'f' position: 450, 550, 650 mm)) x measured 'f' value
<d>:
Enter the measured length of 'd' mark on the test page.
As necessary, try printing the test page again and then check the correction amount.
7
Press <OK>.
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