Improve scan quality, Check the scanner glass for dirt and smudges – HP LaserJet Pro M521 Multifunction Printer series User Manual
Page 204
Improve scan quality
●
Check the scanner glass for dirt and smudges
●
Clean the pickup rollers and separation pad in the document feeder
Check the scanner glass for dirt and smudges
Over time, specks of debris might collect on the scanner glass and white plastic backing, which can
affect performance. Use the following procedure to clean the scanner.
1.
Press the power button to turn the product off,
and then disconnect the power cable from the
electrical outlet.
2
2.
Open the scanner lid.
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.
190
Chapter 9 Solve problems
ENWW