One of the most common print quality issues with multifunction copiers are black streaks running through the page. This occurs because debris gets on the scanner glass, the CVT glass or the white plastic mylars that protect the glass. When the scanner flashes to copy the image, any debris on the glass blocks the light from hitting the paper. This results in a dark colored line moving through the copy.
The easiest way to resolve this is to clean the scanner glass, CVT glass, and the white mylar covers. Windex and a lint free cloth works wonderfully, though water and a lint free cloth will work fine as well.
- Lift the Duplex Automatic Document Feeder (DADF) to access the CVT Glass area. The CVT Glass is located to the left of the Document Glass when facing the front of the copier.
- Lightly dampen a soft, lint-free cloth with Xerox Lens and Mirror Cleaner, or an appropriate glass cleaner. Do not apply cleaner directly onto the glass.
- Wipe the CVT Glass areas clean, using the dampened lint-free cloth. Inspect the CVT Glass to make sure that all spots and marks have been removed.
- Wipe away any residue with a clean, dry cloth or paper towel.
- Clean the Upper Baffle on the DADF with the dampened cloth. Inspect the Upper Baffle to make sure that all spots and marks have been removed.
- Wipe away any residue with a clean, dry cloth.
- Lower the DADF. Run your original job back through the DADF to make sure the cleaning process has resolved the lines and streaking problem.
To prevent reoccurences, be careful of running originals with white out on them, avoid copying originals with toner dust falling off of it, and keep foreign objects away from the glass and top feeder assembly. In the case of white out and foreign objects, repairs may not be covered under a service contract but billed as misuse and abuse of the equipment.
