Xerox 5760 参考指南

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 MAJESTIK 5760/5765 MATERIALS USAGE GUIDE
Hints, Tips & Testing Results
Xerox testing has shown the following:
All color copiers/printers experience a higher jam rate when 
performing duplex copying.  Paper jams can be caused by the 
curl created when running the side 1 image.  This unpredictable 
side 1 curl is the main reason that heavy-weight and coated 
papers cannot be recommended for two-sided copying.
Another cause of increased jams is the contamination of the 
feed rolls with fuser oil when running a large number of duplex 
copies.  This contamination may require more frequent cleaning 
of the rollers.  Your Xerox representative can give you 
information on performing these cleaning procedures (order 
number 700P98965).  To help reduce this contamination 
problem, and improve feeding reliability, mix one-sided copying 
jobs with two-sided copying jobs when possible.  During large 
Duplex jobs, periodically run 5 blank sheets from the Paper Tray 
Bypass in the Black Mode to help keep the feed rolls clean.
Image quality on side 2 will usually be equal to the side 1 image, 
but is more likely to have image mottle/light area problems 
caused by slight waviness in the paper and variable toner 
transfer.  Both of these factors are greatly influenced by the 
paper’s quality.  This is another reason that heavy-weight and 
coated papers are not recommended for duplexing.
If the Image Shift or Corner Shift feature is selected with two-
sided copying, change the horizontal shift direction on side 2 to 
the opposite of the side 1 position.
Example:  If you shift the side 1 image 0.5 inches (13mm) to the 
right, the side 2 image should be shifted 0.5 inches (13mm) to 
the left.  Top and bottom image shift positions do not have to be 
changed, however if the original document is rotated 90 degrees 
on the Document Glass, then the side 2 image should be shifted 
to the vertically opposite direction.
As mentioned above, heavy-weight and coated papers are not 
recommended for Duplex copying due to their variable curl on 
side 1, and image quality problems when running side 2.  In 
many cases, however, good results have been seen with 32 lb 
paper and even 90 lb Index.  The level of success depends 
largely on the exact paper being used, how it is loaded, the 
image being used, and the unique variables in each machine.  If 
attempting to duplex these materials, refer to the Hints and Tips 
sections for Heavy-Weight and Coated papers for more specific 
directions.  Results with these papers cannot be guaranteed 
and nothing can be done to improve performance if it is not 
satisfactory.