![background image](https://i.printerdoc.net/HP LaserJet Pro MFP M521 series/en/HP LaserJet Pro MFP M521 series_en216.png)
Perform a fax diagnostic test
From the product control panel, you can run a diagnostic test that provides information about the
product fax settings.
1.
From the Home screen on the product control panel, touch the Setup button.
2.
Open the following menus:
●
Service
●
Fax Service
3.
Touch the
Run Fax Test
button to start the test. The product prints a test page that shows test results.
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Chapter 9 Solve problems
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