180 Theory of operation ENWW
normal mode. In continuous printing, the print mode remains unchanged from the one selected
for the first page, unless it detects a media different from the first page, when it judges it media
discrepancy.
● When in OTHER print modes than the above two: If a plain paper, gloss paper, or gloss film
is detected; the DC controller lets the printing process continue without changing the selected
print mode. If an OHT is detected, the DC controller judges it media discrepancy. The same
applies to the following pages in continuous printing.
Skew control mechanism
The skew control, which corrects the position of paper fed askew, is controlled by the registration
shutter.
The skew control performs the following sequence of tasks. (See Figure 5-59.)
1 The registration shutter stops the fed paper and evens up the edge of the paper along the
shutter.
2 As the feed roller continues rotating, the paper is pushed against the shutter and gets warped.
3 The force of paper being warped lifts up the shutter and the paper goes through the shutter.
This corrects the position of skewed paper.
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