Contamination Check Test Prints - Xerox Phaser 6128MFP Service Manual

Print-Quality Troubleshooting

Contamination Check Test Prints

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This check produces five pages that are useful for analyzing repeating defects such
as lines or spots that occur at regular interval. By measuring the size of the interval
it is possible to determine which printer component is causing the problem.
Pages 1 through 4: Vertical and horizontal scale patterns on a 20% density
background of one color; for evaluating regularity and intervals.
Page 5: A Pitch Chart that lists repeating defect intervals and their associated
components.
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Phaser 6128MFP Service Manual
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