HP Color LaserJet Enterprise Multifunction M680 Printer series - Manual (Page 164)

3. Clean the scanner glass, the document feeder
strips, and the white plastic backing with a soft
cloth or sponge that has been moistened with
nonabrasive glass cleaner.
CAUTION: Do not use abrasives, acetone,
benzene, ammonia, ethyl alcohol, or carbon
tetrachloride on any part of the product; these
can damage the product. Do not place liquids
directly on the glass or platen. They might seep
and damage the product.
NOTE: If you are having trouble with streaks on
copies when you are using the document feeder,
be sure to clean the small strip of glass on the
left side of the scanner.
4. Dry the glass and white plastic parts with a
chamois or a cellulose sponge to prevent
spotting.
5. Connect the power cable to an outlet, and then
press the power button to turn the product on.
Visually inspect the toner cartridge
Follow these steps to inspect each toner cartridge.
1. Remove the toner cartridge from the product.
2. Check the memory chip for damage.
3. Examine the surface of the green imaging drum.
CAUTION: Do not touch the imaging drum. Fingerprints on the imaging drum can cause print-quality
problems.
4. If you see any scratches, fingerprints, or other damage on the imaging drum, replace the toner
cartridge.
5. Reinstall the toner cartridge, and print a few pages to see if the problem has resolved.
Check paper and the printing environment
Step one: Use paper that meets HP specifications
Some print-quality problems arise from using paper that does not meet HP specifications.
● Always use a paper type and weight that this product supports.
● Use paper that is of good quality and free of cuts, nicks, tears, spots, loose particles, dust, wrinkles,
voids, staples, and curled or bent edges.
● Use paper that has not been previously printed on.
● Use paper that does not contain metallic material, such as glitter.
152 Chapter 9 Solve general problems ENWW