HP LaserJet Pro M521 Multifunction Printer series - Manual (Page 210)

2. Use a moist, lint-free cloth to wipe both pickup
rollers and the separation pad to remove dirt.
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.
3. Close the document-feeder cover.
Check the fit-to-page setting
If the product printed a fax job off the page, turn on the fit-to-page feature from the product control
panel.
NOTE: Make sure that the default paper size setting matches the size of the paper in the tray.
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. Touch the Fit to Page button, and then touch the On button.
Check the sender's fax machine
Ask the sender to darken the contrast setting on the sending fax machine, and then resend the fax.
196 Chapter 9 Solve problems ENWW