Xerox Phaser 3425, Руководство по обслуживанию

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5-2 Phaser 34 25 Laser Printer Service Manual
Print-Quality Problems Overview
Print-quality defects can be attributed to printer components, consumables, media,
internal software, external software applications, and environmental conditions. To
successfully troubleshoot print quality problems, as many variables as possible must
be eliminated. The first step is to generate prints using printable pages embedded in
the printer on laser paper from the approved media list. The paper should be from an
unopened ream that has been acclimated to room temperature.
See the approved media list from, "Xerox Supplies" on page 9-25 for media that has
been tested and approved for use in the Phaser 34
25 Laser Printer. If the print quality
defect is still present when printing on approved media from an unopened ream of
paper, then components, software applications, and environmental conditions need to
be researched.
When analyzing a print-quality defect, first determine if the defect is repeating or
random. Repeating defects can often be associated with a particular component. The
visible surfaces of all rollers should be inspected for obvious defects.
Defects Associated with Specific Printer
Components
Some print quality problems can be associated with specific assemblies, the most
common problems and the associated assemblies are listed below. Also, refer to the
specific print quality troubleshooting procedure for more information.
Print Cartridge
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Streaks
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Fine Lines
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Banding in Process Direction
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Uneven Density
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Voids
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Repeating Defects
Transfer Roller
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Toner on the back side of the printed page (simplex mode)
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Light Prints
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Repeating Defects
■
Spots on Image