HP LaserJet Pro 400 color MFP M475 - No dial tone.

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No dial tone.

Make sure that the telephone cord is plugged into the correct port on the product.

Make sure that the telephone cord from the product is plugged directly into the wall telephone
jack.

Check for a dial tone on the phone line by using the

Start Fax

button.

Unplug the product telephone cord from the wall, plug in a telephone, and try making a voice
call.

Unplug the telephone cord from both the product and the wall and replug the cord.

Make sure that you are using the telephone cord that came with the product.

Plug the product phone cord into a jack for another phone line.

Check the phone line by using the

Run Fax Test

option from the

Service

menu on the control

panel.

a.

From the Home screen, touch the Setup

button.

b.

Open the

Service

menu.

ENWW

Solve fax problems

213

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c.

Open the

Fax Service

menu.

d.

Select the

Run Fax Test

item.