Xerox 770, User Manual, Page: 139 / 268

Color Lines, Streaks, Spots, Smears, or Bands
Output contains color lines, streaks, spots, stripes (either dotted or continuous),
and/or has scratches or undefined edges.
Remedy:
• Run jobs with individual colors (yellow, magenta, cyan) in order to determine which
color drum may be damaged or light-shocked.
• Replace the appropriate color drum cartridge.
• If spots or bands occur every 188 mm, the Black Drum is damaged or light-shocked.
Replace the Black Drum Cartridge.
• Ensure that the paper tray guides are against the edges of the loaded paper.
Completely Black
Remedy: The fault requires further investigation. Contact the Xerox Welcome and
Support Center (go to
www.xerox.com and click on the Contact Us link for specific
contact information/telephone numbers in your area).
Output is totally black or gray over the entire paper.
Remedy: Before calling the Welcome and Support Center, write down your machine's
serial number.
Completely Blank
Remedy: If you are copying your original from the Document Handler, ensure that
your original is loaded face up and the document handler guides are against the edges
of the loaded originals.
Paper is delivered by the machine, but no image is present.
Remedy: If you are copying your original from the Document Glass, ensure that your
original is loaded face down and to the rear left of the document glass.
White Lines, Streaks, Spots, Bands or Deletions
Remedy: Ensure that the paper loaded is within machine specifications. Go to the
Paper and Media section for information on paper specifications and storage.
Output contains white stripes either dotted or continuous, has stratches or areas
of white where the original was a dark image.
Remedy: Load a new ream of paper into the selected paper tray.
Partially Blank or Half Image
Remedy: If you are copying your original from the Document Handler, ensure that
your original is loaded face up and the document handler guides are against the edges
of the loaded originals.
Remedy: If you are copying your original from the Document Glass, ensure that your
original is loaded face down and to the rear left of the document glass.
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Xerox
®
770 Digital Color Press
User Guide
Problem solving