NEC SuperScript 4400, User Manual

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110 SuperScript 4400 Series — User’s Guide
Black Line
A fine black line appearing in the printed image may indicate
that the Belt Cartridge surface is damaged or that there is
debris stuck in the Belt Cartridge area.
Solutions
• Clean or replace the Belt Cartridge if it is damaged or has
reached the end of its expected life.
• If problem persists call a service representative.
Vertical Line
A vertical line of any color appearing in the printed image
may indicate that there is debris on or near the transfer drum.
Solutions
• Clean inside the back of the printer especially the Paper
Discharger (see page 98).
Image Staggered Vertically
A printed image that staggers or repeats vertically may
indicate that the printer was bumped or vibrating during
printing. It may also indicate that the optical unit has failed.
Solutions
• Ensure that the printer was not bumped during printing
and that the surface it is placed on is not shaky or
wobbly.
• Call a service representative to check the printer, if you
cannot identify a cause.
Horizontal Banding
Horizontal banding in the image may indicate a transfer
failure.
Solutions
• Check Toner Modules.
• Replace the Belt Cartridge if it is getting to the end of its
life.
• If problem persists call a service representative.
Horizontal White Band
A white band appears horizontally in the print image.
Solution
• Call a service representative to check the printer.
Toner Spots
Toner spots or stains on the paper may be caused by toner
dropping inside the printer.
Solutions
• Clean the Belt Cartridge (see page 96).
• Call a service representative to check the printer.
Mixed Color Image
If a mixed color image appears on the page it may indicate a
problem with a Toner Module.
Solutions
• Confirm that all Toner Modules are inserted correctly.
• Make sure that the Front Cover is completely closed.
• Replace or redistribute Toner Modules if low.