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HP LaserJet Enterprise MFP, HP OfficeJet Enterprise MFP, HP PageWide Enterprise MFP, HP Managed MFP - Problems with sending faxes

This document lists common problems that can occur when sending faxes, and provides information about the cause of the problems and how to resolve them.

Problem: Faxes are transmitting very slowly

Causes and Solutions

Cause

Solution

You might be sending a complex fax, such as one with many graphics.

Complex faxes take longer to transmit.

The receiving fax machine might have a slow modem speed.

The fax accessory only sends the fax at the fastest modem speed that the receiving fax machine can use. Wait for the fax transmission to complete.

The resolution at which the fax was sent (or is being received) is very high.

A higher resolution typically results in better quality, but also requires a longer transmission time.

Decrease the resolution and change the Optimize Text/Picture option.

If there is a poor phone-line connection, the fax accessory and the receiving fax machine slow down the transmission to adjust for errors.

Cancel and resend the fax. Ask the phone company to check the phone line.

The document might have a gray background, which can increase fax transmission time.

Use the Image Adjustment feature to clean up the background shading.

Problem: Fax quits during sending

Causes and Solutions

Cause

Solution

The receiving fax machine might be malfunctioning.

Try sending to another fax machine.

The phone line might not be working.

Disconnect the fax accessory from the phone jack, and connect a phone. Try to make a phone call to ensure the phone line is working.

The phone line might be noisy or poor quality.

Try using a slower fax speed to improve the reliability of transmission.

Use the Fax Dialing Settings menu to set the fax speed for sending faxes.

A call-waiting feature might be active.

Verify that the fax telephone line does not have an activated call-waiting feature.

A call-waiting notice can interrupt a fax call in progress, which causes a communication error.

Problem: The fax accessory is receiving faxes, but not sending them

Causes and Solutions

Cause

Solution

If the fax accessory is on a PBX system, the PBX system might be generating a dial tone that the fax accessory cannot detect.

Disable the detect-dial-tone setting.

There might be a poor phone connection.

Try again later.

The receiving fax machine might be malfunctioning.

Try sending to another fax machine.

The phone line might not be working.

Disconnect the fax accessory from the phone jack, and connect a phone. Try to make a phone call to ensure the phone line is working.

Problem: Outgoing fax calls keep dialing

Cause and Solution

Cause

Solution

The fax accessory automatically redials a fax number if the Redial on Busy option is on, or if the Redial on No Answer option is on.

This is normal operation.

If you do not want the fax to retry, set the Redial on Busy option to 0, set the Redial on No Answer option to 0, and set the Redial on Error option to 0.

Problem: Faxes that you send are not arriving at the receiving fax machine

Causes and Solutions

Cause

Solution

The receiving fax machine might be turned off or might have an error condition, such as being out of paper.

Ask the recipient to verify that the fax machine is turned on and ready to receive faxes.

A fax might be in memory because it is waiting to redial a busy number, or there are other jobs ahead of it waiting to be sent.

If a fax job is in memory for either of these reasons, an entry for the job displays in the fax log.

Print the fax activity log, and check the Result column for jobs with a Pending designation.


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