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Re: whats up with fax fail test
Check to see if your phone operates on the same jack the printer is connected to. Is comcast your telephone service or internet provider? You need to have a landline phone service or VOIP for a fax to work.
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A) Run the fax test on the printer itself to see if it's connected properly and has an active phone line.. HP All-in-one printers still make a dial tone sound even if they aren't connected to a phone line.
To run the test 1)..Press the SETUP button. Press the down arrow button until "Tools" is highlighted then pres OK.
2) Press down arrow key again and select "Run Fax test"
The printer will then print out the results.
It will tell you if anything fails. If it does, the correct the problem it mentions.
IF everything passes, then the problem is likely your cable phone line which is a "Digital" and Fax machines still use an analog signal.
Here is what you can try to overcome the deficiencies in a cable phone system.
1) Set your fax speed to Medium
2) Turn your ECM (Error correction mode) OFF
To set your fax speed, Press the SETUP button again.. Press your down arrow again until you find "Advanced Fax Settings" and the press OK.. arrow down until you find "Fax Speed" and hit OK. Then choose Medium (14,400) and press OK
This will take you to your previous menu (Advanced Fax setings).. Find "ECM Choose OK again.. Then choose OFF and press OK. Press the X button on your printer's control panel and then Retry your fax.. Hope this helps
There is two things i can think of that can cause this. The number one is if you are using a voip carrier (like vonage or att voip or comcast digital voice) they are usually not compatable with fax machines. You will need either a dedicated fax line or you will need to whats called a fax line from vonage or comcast, or from your voip service. If you are using a phone line test to make sure you have it connected correctly buy simply dialing your cell phone or a friends cell phone (let him know you are going to test) once you do this you will hear a ring and an annoying fax machine tone buzzing in your ear. if this is the case and you do have everthing connected correcly i would put a trouble ticket in with your phone company, to test the line condition of your line (to make sure its not shorting or anything like that)
i hope this helps if there was more information i could do better but hopefully this will help out a bit.
Your cable modem is not normally a source for telephone line that the fax machine will support. If you have telephone service through Comcast, You need to contact them about proper hookup to configure your fax line.
Cox Cable is pretty much the same as comcast's and vonage's services. HP fax machines have had HUGE compatibility issues with those types of services, and may be that they did something to their service that caused your fax to stop working.....
Other than that call HP and see if they have any troubleshooting or Diagnostics that you can run, but I ran in to these problems with HP faxes all the time while installing comcast phone service, never knew WHY it didn't work, just that HP doesn't work on that type of service.....at least certain models...Also maybe call COX and see if they did anything recently that could cause it to stop working....
Do fax machines work with Comcast Digital Voice service?
Yes. However, there may be some equipment brands or models that are incompatible with Comcast Digital Voice® service. Click here to review a list of equipment that has been known to have compatibility issues with Comcast Digital Voice service.