Xerox MajestiK 5760 Reference Manual

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Xerox MajestiK 5760 Reference Manual Manual pdf 28 page image

APPLICATIONS24 MAJESTIK 5760/5765 MATERIALS USAGE GUIDEHints, Tips & Testing ResultsXerox testing has shown the following:• All color copiers/printers experience a higher jam rate whenperforming duplex copying. Paper jams can be caused by thecurl created when running the side 1 image. This unpredictableside 1 curl is the main reason that heavy-weight and coatedpapers cannot be recommended for two-sided copying.• Another cause of increased jams is the contamination of thefeed rolls with fuser oil when running a large number of duplexcopies. This contamination may require more frequent cleaningof the rollers. Your Xerox representative can give youinformation on performing these cleaning procedures (ordernumber 700P98965). To help reduce this contaminationproblem, and improve feeding reliability, mix one-sided copyingjobs with two-sided copying jobs when possible. During largeDuplex jobs, periodically run 5 blank sheets from the Paper TrayBypass 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 problemscaused by slight waviness in the paper and variable tonertransfer. Both of these factors are greatly influenced by thepaper’s quality. This is another reason that heavy-weight andcoated 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 tothe opposite of the side 1 position.Example: If you shift the side 1 image 0.5 inches (13mm) to theright, the side 2 image should be shifted 0.5 inches (13mm) tothe left. Top and bottom image shift positions do not have to bechanged, however if the original document is rotated 90 degreeson the Document Glass, then the side 2 image should be shiftedto the vertically opposite direction.• As mentioned above, heavy-weight and coated papers are notrecommended for Duplex copying due to their variable curl onside 1, and image quality problems when running side 2. Inmany cases, however, good results have been seen with 32 lbpaper and even 90 lb Index. The level of success dependslargely on the exact paper being used, how it is loaded, theimage being used, and the unique variables in each machine. Ifattempting to duplex these materials, refer to the Hints and Tipssections for Heavy-Weight and Coated papers for more specificdirections. Results with these papers cannot be guaranteedand nothing can be done to improve performance if it is notsatisfactory.