Xerox FaxCentre 2121 Service Manual page 185

Laser Emission Area
Main scanning direction
• The print start position is determined by the main scanning print start signal (/HSYNC) output
from the CPU and the width of the paper.
• The laser emission area is determined by the paper size. Areas with a width of 4 mm on both
edges are not, however, printed.
Sub-scanning direction
• The print start position is determined by the sub-scanning print start signal (/TOD) output from
the CPU and the length of the paper.
• The laser emission area is determined by the paper size. Areas with a width of 4 mm on both
the leading and trailing edges are not, however, printed.
FaxCentre 2121/2121L
Figure 3
11/06
General Procedures and Information
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