Xerox 3450B Service Manual - Page 83
Print-Quality Problems Overview, Defects Associated with Specific Printer Components
UPC - 095205120011
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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 3450 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 ■ Streaks ■ Fine Lines ■ Banding in Process Direction ■ Uneven Density ■ Voids ■ Repeating Defects Transfer Roller ■ Toner on the back side of the printed page (simplex mode) ■ Light Prints ■ Repeating Defects ■ Spots on Image 5-2 Phaser 3450 Laser Printer Service Manual