Xerox 721P83071 User Manual

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PRODUCT DIFFERENCES/USER CONSIDERATIONS
For A4 paper, the formula is: 
Printer alignment in scan direction +69 
If any part of an item begins more than this number of dots
before the leading edge of the physical page, the item falls off
the system page and does not print. 
Registration shift and skew
The registration of a printed image can appear shifted or skewed
on a page if the sheet of paper is misaligned as it enters the
printer.  Because of the design of the LPS feeder, the image
registration on each page can vary slightly both horizontally and
vertically by up to 0.65 mm.  The image can also be slanted or
skewed slightly by 3.97 milliradians.  (Refer to figures 5-3 and
5-4, Landscape and portrait shift and skew.) Note that the
following figures are the same specifications merely rotated to
show portrait and landscape orientations.  The shift and skew
variances described here are within allowable specifications, but
as this can affect the registration of variable data in preprinted
forms and the placement of images close to the edge of the
page, it is important to make allowance for this condition.  
Figure 5-3 illustrates the landscape orientation shift and skew. 
Figure 5-3.
Landscape orientation shift and skew (8.5 by 11
inches) 
XEROX 4635 LASER PRINTING SYSTEM PRODUCT REFERENCE
5-19