HP LaserJet Pro M521 Multifunction Printer series - Manual (Page 208)

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.
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.
2
Check the send-fax resolution setting
If the product was unable to send a fax because the receiving fax machine did not answer or was busy,
the product attempts to redial based on the redial-on-busy, redial-on-no-answer, and redial-on-
communication-error options.
1. From the Home screen on the product control panel, touch the Setup button.
2. Touch the Fax Setup menu.
3. Touch the Advanced Setup menu.
4. Open the Fax Resolution menu.
194 Chapter 9 Solve problems ENWW