Xerox Phaser 6180 Manuel d'entretien - Page 13

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Print-Quality Troubleshooting

Print-Quality Problems Overview

Defects Associated with Specific Printer Components

Laser Unit

5-2

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, eliminate as

many variables as possible. The first step is to generate prints using

information pages embedded in the printer on laser paper from the approved

media list. Refer to "Media and Tray Specifications" on page 1-22 for

supported and specialty media that have been tested and approved for use in

the Phaser 6180 Color Laser Printer. Use paper from a fresh ream that is

acclimated to room temperature and humidity.

If the print-quality defect is still present when printing on approved media from

an unopened ream of paper, then investigate software applications and

environmental conditions.

Print the Configuration page to determine the temperature and humidity under

which the printer is operating. Compare this to the "Environmental

Specifications" on page 1-15. Extreme temperature and humidity can

adversely affect the xerographic and fusing characteristics of the printer.

When analyzing a print-quality defect, first determine if the defect occurs in all

colors or only one color and if it is repeating or random occurrence.

Continuous defects in the process direction, such as Voids and Lines, are the

most difficult to diagnose. Inspect the visible surfaces of all Rollers for obvious

defect. If no defects are found, replace the Print Cartridge, Laser Unit,

Transfer Unit, and Fuser one at a time until the defect is eliminated.

Some print-quality problems can be associated with specific assemblies; the

most common problems and the associated assemblies are listed in this

section. Refer to the specific print-quality troubleshooting procedure for detail

information.

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Light or Undertone Print

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Blank Print (No Print)

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Black Print

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Vertical Blank Lines

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Horizontal Band, Voids, or Streaks

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Vertical Stripes

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Horizontal Stripes

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Partial Band

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Random Spots

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Repeating Bands, Lines, Marks, or Spots

Phaser 6180 Color Laser Printer Service Manual