Office jet 5740 will not fax.

[DJJ55-_]

My office jet 5740 will not fax any more code 344. 
it does still copy, print and scan.  Please help! 👍🏼

[Jay_G24]

Hi @DJJ55-_,

I'd like to help!

I understand you are receiving fax error 344.

The fax error indicates a communication error between the two fax machines.

The error might be due to the following:

1. The remote machine failed to respond to a fax command from the local machine because the connection was interrupted. These errors can occur if the phone lines in the area to be faxed are old or there is noise (static on the phone line). Other reasons can include power outages and other power-related problems.

2. The call-waiting service can cause this error. The click heard for an incoming call, is actually a momentary disconnect of the line. 

Possible Solutions:

1. Retry the fax reception when telephone line conditions have improved. Call the telephone provider if line conditions fail to improve. 

2. Disable ECM. Errors might still occur and might result in degraded image quality on the received page. However, the ability to send the entire document improves.

3. Try sending at a lower transmission speed. 

For instructions, please refer to -http://h10032.www1.hp.com/ctg/Manual/c04426664.pdf

Hope this helps! Keep me posted. 

And, Welcome to the HP Support Community. 

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