HP Color LaserJet Pro M479 User Guide

● If you are using a DSL service, make sure that a lter is included on the phone-line connection to the
printer. Contact the DSL service provider, or purchase a DSL lter if you do not have one. If a DSL lter is
installed, try another lter because lters can be defective.
Solve general fax problems
Review suggestions and tips for resolving various fax-related issues.
Faxes are sending slowly
The printer is experiencing poor phone line quality.
Try the following suggestions to resolve the issue:
● Try resending the fax when the line conditions have improved.
● Check with the phone service provider to verify that the line supports fax.
● Turn o the Error Correction Mode setting:
1. From the Home screen on the printer control panel, swipe right and then touch the Fax icon.
2. Swipe right and touch the Setup icon.
3. Touch Preferences.
4. Scroll to Error Correction Mode and then touch the button to turn o the setting.
NOTE: This can reduce image quality.
● Use white paper for the original. Do not use colors such as gray, yellow, or pink.
● Increase the Fax Speed setting:
1. From the Home screen on the printer control panel, swipe right and then touch the Fax icon.
2. Swipe right and touch the Setup icon.
3. Touch Preferences, and then scroll to and touch Speed.
4. Touch the desired speed setting.
● Divide large fax jobs into smaller sections, and then fax them individually.
Fax quality is poor
Faxes are blurry or too light.
Try the following suggestions to resolve the issue:
● Increase fax resolution when sending faxes:
NOTE: Resolution does not aect received faxes.
1. From the Home screen on the printer control panel, swipe right and then touch the Fax icon.
2. Touch the Send Now icon.
3. Touch the Settings icon , and then touch Resolution.
Solve general fax problems
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