HP LaserJet Pro 400 MFP M425 - 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.

From the Home screen on the product control panel, touch the Setup button, and then touch
the

Service

menu.

b.

Select the

Fax Service

menu.

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 report indicates the nature of the error and 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.

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.

100 Chapter 6 Fax

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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 101