HP LaserJet Pro 400 color MFP M475 - Fax troubleshooting checklist

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Fax troubleshooting checklist

Several possible fixes are available. After each recommended action, retry faxing to see if the
problem is resolved.

For best results during fax problem solving, make sure the line from the product is plugged
directly into the wall phone port. Disconnect all other devices that are connected to the product.

1.

Verify that the telephone cord is plugged into the correct port on the back of the product.

2.

Check the phone line by using the fax test:

a.

On the control panel, open the Setup

menu, and then open the

Service

menu.

b.

Select the

Fax Service

option.

c.

Select the

Run Fax Test

option. The product prints a fax test report.

The report contains the following possible results:

Pass: The report contains all of the current fax settings for review.

Fail: The cord is in the wrong port. The report contains suggestions for how to resolve
the issue.

Fail : The phone line is not active. The report contains suggestions for how to resolve
the issue.

3.

Verify that the product firmware is current:

a.

Print a configuration page from the control panel

Reports

menu to obtain the current

firmware date code.

b.

Go to

www.hp.com

.

1.

Click the Support & Drivers link.

2.

Click the Download drivers and software (and firmware) link option.

3.

In the For product box, type the product model number, and then click the Go button.

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Chapter 12 Fax

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4.

Click the link for your operating system.

5.

Scroll to the Firmware section of the table.

If the listed version matches the version on the configuration page, you have the
most current version.

If the versions are different, download the firmware upgrade and update the
firmware on the product following the instructions onscreen.

NOTE:

The product must be connected to a computer with internet access to

upgrade firmware.

Resend the fax.

4.

Verify that the fax was set up when the product software was installed.

From the computer, in the HP program folder, run the Fax Setup Utility.

5.

Verify that the telephone service supports analog fax.

If using ISDN or digital PBX, contact your service provider for information about configuring
to an analog fax line.

If using a VoIP service, change the

Fax Speed

setting to

Slow (V.29)

or disable

Fast (V.34)

from the control panel. Ask if your service provider supports fax and for the recommended
fax modem speed. Some companies might require an adapter.

If using a DSL service, ensure that a filter is included on the phone line connection to the
product. Contact the DSL service provider or purchase a DSL filter if you do not have one.
If a DSL filter is installed, try another since these filters can be defective.

6.

If the error persists, find more detailed problem-solving solutions in the sections that follow this
one.

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Solve fax problems

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