TITLE
    LaserWriter 8500: Toner Stains On Printed Output
Article ID:
Created:
Modified:
24606
9/14/98
2/5/99

TOPIC

    My LaserWriter 8500 recently began putting a light dusting of toner onto my printed output. The toner stays towards the center of the page and produces a band of 'background toner' that is 3 to 4 inches wide. The band always appears parallel to the direction of paper movement and appears to show a slight ghost image of items printed approximately 3 inches earlier on the page.


DISCUSSION

    When a fuser roller becomes contaminated with toner it can cause toner stains to appear on the printed output. A normal fuser roller contains a non-stick coating which is supposed to prevent the unfused toner particles on the sheet of paper from adhering to the heated fuser roller during the fusing process. If the fuser roller becomes contaminated with toner or other contaminants then the non-stick properties are diminished. The ghosting images that occur when unfused toner is picked up by the toner stained areas of the fuser and redeposited the next revolution of the fuser roller. The circumference of the fuser roller is approximately 3 1/8". Unlike most other LaserWriters, Letter and A4 paper typically feed long edge first on the LaserWriter 8500 which means that the ghosting repeats from the right to the left side of the page. Larger paper sizes feed short edge first so the ghosting will repeat from the top to the bottom of the page.

    Toner stains on the fuser roller typically cannot be cleaned off without further damaging the non-stick coating. Customers should contact their service provider for further assistance.

Document Information
Product Area: Printers
Category: LaserWriters
Sub Category: LaserWriter 8500

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