Question about HP 640 Inkjet Fax Machine

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HP 640 Fax...can't recieve faxes

EXT. Phone To RX displayed in window....can't recieve in coming faxes

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  • Cherie70 Sep 25, 2008

    I can send faxes on my hp 640 but when i get incoming faxes it always ends in recieving error.

  • Anonymous Oct 29, 2008

    HP 640 Fax disconnects and then won't hang up the line.

  • Anonymous Jan 04, 2009

    screen keeps saying paper jammed no paper is jammed cartridge kicks to middle when cancel is hit as suggested cannot recieve faxes machine used for communication with 87 year old deaf person so is very much needed thank you for your help

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You cannot use a four wire cable to connect the fax to the wall. You must use a two wire cable, like the one that came with the machine.  BTW, that means you can't you the EXT port to connect a two line phone or answering machine.

Posted on Nov 06, 2008

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Send me fax, for check again de fax number is 219 - 548-0175

Posted on Dec 10, 2008

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Try disconnectiong the handset completely

Posted on Sep 05, 2008

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1 Answer

I cant send or recieve faxes


Unplug the HP from the phone line. Connect any regular phone, do you have a calling signal? Can you outdial and receive calls? If so... Check if you're plugging the phone cable to the "LINE" not "EXT".

Mar 05, 2011 | HEWLETT-PACKARD HP 2140 Fax

1 Answer

HP 640 fax only displays bars nothing else will work


while the printer is powered on.....unplug the power module and then press and hold the # 3 button at the same time......while holding the two buttons reconnect the power module......will fix the problem.

Jun 01, 2010 | HP 640 Inkjet Fax Machine

1 Answer

HP 640 fax won't send fax but phone works


Unfortunately wer purchased two new hp office jet 7610 which do not come with cabling and we could not get the fax to work. I spent 3 days on the telephone with hp and British Telecom each of which blamed it on each other. After doing some research on the internet I discovered that hp require a strange cable formant which is called a 'cross-over cable' is required. I bought them from cabling4less.co.uk and the product code is BT-203X. They can be found on their web site www.cabling4less.co.uk The link is: http://www.cabling4less.co.uk/category.php?cat_id=237 This should resolve this frustrating problem.

Jul 23, 2009 | HP 640 Inkjet Fax Machine

1 Answer

Hp 640 cant send or receive fax(NO ANSWER FROM REMOTE FAX


Since the fax machine is about 4 weeks old, why not give it back to HP? Warranty still covers it.

May 22, 2009 | Office Equipment & Supplies

1 Answer

Problem with my hp 640 fax


once you dial the number you fax will automatically start sending the the Fax signal which sounds like short beeps. This is done so the receivers phone (when answered) will recognized the beeps and switch to fax receive mode.  If you are getting the recording that you mentioned above, that means the number you dialed was not successful in making the connection.  Once you dial the number you should hear the phone ringing followed by some churping noises when the other end answers the call... then other churping and gargle like sounds initially as the fax proceeds.  
sounds like your are having trouble with the number you are dialing.
Hope this helps..
~enov8

Feb 24, 2009 | HP 640 Inkjet Fax Machine

1 Answer

Fax will not recieve but will send fax


what does the display reed. To receive fax automatically the display needs to reed
( fax mode or auto ) . If in the manual mode you need to pick up the receiver listen for the tones then press start.

make sure the phone cord from the wall jack is from the wall to the line connection MOT THE EXT. CONNECTION on the fax ( nothing in between the wall & fax )

hope this works
C.W.H.

Dec 12, 2008 | Brother FAX-575 Plain Paper Thermal

1 Answer

Error code ext. phone to rx


Error : Ext. phone to receive

Here is the manual,
http://www.retrevo.com/search/v2/jsp/downloadPage.jsp?doc=02c3572ff6a11ac342ae55fe4e15c1a2&q=hp+1040+fax&e=1

check the conection in the back 1st (In HP fax basics)

Jul 05, 2008 | HP 1040 Plain Paper Inkjet Fax

1 Answer

Phone works fax won't


my fax not recieve faxes.

Apr 13, 2008 | HP 640 Inkjet Fax Machine

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