Xerox Phaser 840 文件

After you clear a media jam, the printer automatically outputs a second, usually 
partial print to remove any image that may remain on the print drum; then it prints 
your original image. 

The lower tray is the default tray for media that the printer uses in self-cleaning. If 
you have one or two High-Capacity Paper Tray Assemblies, you can make the upper 
or middle tray the default tray through the printer’s front panel menu. Refer to “The 
Cleaning Page” on page 60 for instructions.

Use the following guidelines to prevent media jams inside the printer.

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Make sure that the printer is on a flat, level surface.

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Use the recommended media. Refer to “All about media” on page 7.

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Do not use three-holed paper, perforated paper, or odd-sized paper.

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When using the manual feed slot, always use two hands to load the media 
straight and evenly.

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Keep paper and other supplies clean and free from dust.

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Paper that has been sitting out of its sealed wrapper can become distorted, 
causing paper jams.  Keep paper sealed until you are ready to use it for 
printing.

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Do not use paper that has been creased or wrinkled.

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Fan media before loading it in the trays.  

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When using the manual feed slot, wait until a front panel message prompts 
you before feeding a second sheet of paper or transparency.

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Do not print on sheets of labels that are missing labels.