Question about HP Photosmart C7280 Laser Printer

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Whats up with fax fail test

Your printer says an active phone line was not detected when one is there called comcast they said compatible any ideas?

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  • Anonymous Mar 17, 2009

    HP C7280 does not recognize Comcast digital phone line

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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.

Posted on Dec 28, 2008

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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.
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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.

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Hi,

I am afraid to inform you that Comcast does not support faxing.

Please click on the web link given below to get the answer.

http://www.comcast.com/customers/faq/FaqDetails.ashx?ID=2189

Have a great day!

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