Question about HP 640 Inkjet Fax Machine

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My HP 640 will not print. Ran the test, no print.

My HP 640 will not print. Ran the test, no print. Performed the recommended cartridge maintenance, no print. Any suggestions?

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Generally speaking if paper is coming out blank you have a cartridge issue. To check if the ink in the cartridge is dried up in the print head take the cartridge out and blot the printhead (on the bottom of the cartridge ) on a paper towel - if there is no solid blob of ink it is dry or empty. You can soak the printhead in 1/4" of warm water in a dish for about 5-10 minutes and try again. If there is still no blob of ink you either need to go to and ink refiller and have them try to revive it or buy a new one and print something every week (2 at most) to keep it from dying out again. This method works for both black and color

Posted on Sep 16, 2014

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If these are new cartridges, make sure you removed all of the protective plastic wrap that comes when packaged.  usually its red , yellow or orange plastic tab that should be removed.
If these are not new cartridges, you may need to try another set. 
Try running the head cleaning utility under the printer utilities options HP is very good at having this utility available to trouble shoot most common problems.  If you don't have this utility, try updating your printer driver. (basically uninstall the printer and download the driver from the HP website, and reinstall the printer using the latest driver).
Hope this helps..
~enov8

Posted on Mar 07, 2009

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Posted on Jan 02, 2017

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1 Answer

MY HP FAXNUMER 640 WON'T RECEIVE FAXS AFTER I REPLACED TONER CARTRIDGE


The two aren`t related, you must have pressed a button that changed the `reception mode` to Manual from either `auto` or `tad`

Apr 04, 2012 | HP 640 Inkjet Fax Machine

1 Answer

When fax comes through paper is blank. I've tried 2 different cartridges


Replace the print cartridge
When you notice that the print becomes light or ink low or when install new ink
cartridge appears in the display, replace the print cartridge. The part number for
replacement cartridges is HP 701.
1. Take out a cartridge from its packaging and carefully remove the tape covering the
printhead.
Hold the cartridge by the colored top or black areas only. Do not touch the copper
area.
2. Press the Access Cartridge button on the control panel.
The cartridge carrier moves to the install position.
1 Access Cartridge
1
CARE AND
MAINTENANCE
CARE AND
MAINTENANCE
CARE AND
MAINTENANCE
CARE AND
MAINTENANCE
CARE AND
MAINTENANCE
CARE AND
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CARE AND
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Care and maintenance 45
Replace the print cartridge
3. Open the control panel and cartridge compartment cover (it will click and remain
open).
4. Push the cartridge down and remove it.
5. To load the cartridge insert the cartridge as shown below. When the cartridge is
pushed to the back of the cartridge carrier, push the top of the cartridge until it clicks
into place.
If the cartridge moves loosely in the carrier, it has not clicked into place. Repeat this
step.
1 Control panel
2 Cartridge compartment
cover
1
2
46 Care and maintenance
Clear jammed documents and paper
6. Close the cartridge compartment cover and control panel.
7. Press Start/Enter.
8. Press 1 for new cartridge, or 2 for the old one.
• When you put in a new cartridge, you must choose 1:New
• When you put in a used cartridge, choose 2:Used. This helps you to check the
correct amount of ink you have left.
TIP: If you mix up several used cartridges, it is not possible to check the correct amount
of remaining ink. Once you have put in a new cartridge, use it until it is completely
exhausted.

Nov 11, 2011 | HP 640 Inkjet Fax Machine

1 Answer

How do you get a refilled hp 701 cartridge to work in a hp 640 fax machine?


HP does not recommend using refilled cartridges because the electronics will prevent it from being used. They are designed to work only with fresh cartridges for their printers.

Jul 14, 2011 | Office Equipment & Supplies

1 Answer

Can this fax machine be used as a printer?


Lexmark is one of the industry leaders in printers. Over time with use your printer may require maintenance and you will need to replace the ink cartridges, print heads and ribbons in your printer. If your printer is displaying the 935 printhead error here are some things to look into.
you cannot use fax machine as a printer because it is different specific programmed.
please rate me by telling how helpfull it is.


Jan 02, 2011 | HP 640 Inkjet Fax Machine

1 Answer

Hp 1040 ran out of paper/after restocking now prints blank pages


Even though the toner was shown at 1/2, I had the fax machine operator install a new cartridge. Problem solved!

Aug 24, 2009 | HP Office Equipment & Supplies

1 Answer

HP 640 Fax series not printing


If it is a color printer, try printing just grayscale or black& white.  It is is already set to print just b/w, try printing in color.  Basically you may be out of ink.  Run the printer utility to clean the heads and see if anything changes.  A new set of cartridges should fix the problem, I believe.
Hope this helps...
~enov8

Feb 16, 2009 | HP 640 Inkjet Fax Machine

1 Answer

How can I get the fax and copy to print clearly?


Still sounds like a bad ink cartridge, try cleaning the bottom of the cartridge with a Kleenex and soapy water. Dry it off real good.

Look where the cartridge sits and clean the same way.

Ink jets are dead technology.

Nov 11, 2008 | HP 640 Inkjet Fax Machine

1 Answer

Fax


Check the toner cartridge. Try printing on different kind (weight) of paper. Check HP's site for newer drivers.

Mar 28, 2007 | HP 1040 Plain Paper Inkjet Fax

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