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Xerox 490/980 Color Continuous Feed Printing System
Calculate Offset Specification and Logical Page Size Values
The following sample procedure uses the following hypothetical paper stock width, logical page
size (image area) and DPI settings:
•
Paper Stock Width: 8.3 in (457 mm)
•
Logical Page Size (image area): 5.6 in (142 mm) x 12 in (305 mm)
•
DPI: 300x300
To Calculate Logical Page Size Width
Multiply the width of the logical page size in inches by the DPI:
5.6 x 300 + 500 = 1680 = Logical Page Size Width
To Calculate Logical Page Size Height
Multiply the height of the logical page size in inches by the DPI:
12 x 300 = 3600 = Logical Page Size Height
To Calculate Offset Specification X-direction
1. Multiply the width of the paper stock in inches by the DPI:
8.3 x 300 = 2490
2. Divide the number calculated in the previous step by 2:
2490 / 2 = 1245
3. Divide the Logical Page Size Width already calculated by 2:
1680 / 2 = 840
4. Subtract the number calculated in step 2 by the number calculated in step 3:
1245 - 840 = 405 = Offset Specification X-direction
To Calculate Offset Specification Y-direction
This value is always equal to 0.
When finished with all calculations...
Add 500 dpi to the Logical Page Width:
1680 + 500 = 2180 = New Logical Page Width
Subtract 200 dpi from the Offset Specification X-direction:
405 - 200 = New Offset Specification X - direction
The Logical Page Settings should match the graphic below:
Printer Operator Guide
Appendix
A-3
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