HP LaserJet Enterprise flow M830 Multifunction Printer series - Manual (Page 183)

Improve fax image quality
● Check the scanner glass for dirt and smudges
● Check the send-fax resolution settings
● Check the image-adjustment settings
● Optimize fax quality for text or pictures
● Check the error-correction settings
● Send to a different fax machine
● Clean the pickup rollers and separation pad in the document feeder
● Check the fit-to-page setting
● Check the sender's fax machine
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.
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