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I have a new HP 6940 ink jet. I now need to change the print cartridge and cannot get the black cartridge out due to a small strip in front of where the cartridges sit. Please advise. Thank you Kate Brown

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  • Anonymous Apr 20, 2009

    I don't know how to change the printer ribbons on my HP6940 for the firts time either becaue of the white plastic piece in the way. I was trying to take it out (plastic piece), but it seemed to be attached underneath the cartridges.

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You can use a little bit alcohol to make it easy
move

Posted on Apr 29, 2008

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1 Answer

HP 6940 won't print black-new cartridge installed-prints color but no black


In all likelihood your print head has become clogged at the black ink outlet. Be aware that printheads can BURN OUT if you keep trying to print and there's insufficient ink reaching the printhead. The ink flow is relied upon to prevent overheating of the tiny resistors at the printhead. Best bet is to remove the cartridges from the printhead and then remove the printhead and try to clean it in warm water. You will find many youtube videos on suggestions for cleaning the printheads on HP printers. Do a google search for your model. If all else fails you can order replacement printheads for the part that has failed. They are not cheap so price compare. Oftentimes they will cost nearly as much as a new printer!

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I have a new black ink cartridge but my printer wont print because the color ink is empty is there a way to get it to print without refilling the colored ink since i only need black???


When printing in BLACK, a small amount of the COLOUR ink also is used.
This "trick" prevents the COLOUR ink-jets from clogging, due to not being used.

So, you need to have a "good" COLOUR ink-cartridge.

Mar 18, 2011 | Epson Stylus Multifunction Inkjet Printer/...

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Just changed my black ink cartridge and it won't print. color still prints fine


Ink cartridge has a plastic seal protector that has to be removes prior to installation in compartment. Ascertain that the seals are removed from color ink cartridge. Also, ensure that the device is firmly straped in place to achieve print.

Feb 03, 2011 | HP Deskjet 6940 InkJet Printer

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The black is printing dark redish brown


Dear friend, your Black Ink Cartridge is Empty thats why your printer is using the Colour Cartridge to produce the Black Colour. This is the reason you are having Dark Reddish Brown colour instead of Black.

Apr 08, 2009 | HP Deskjet 6940 InkJet Printer

1 Answer

I have a Deskjet 6940 printer and ive bought a HP348 photo colour ink cartridge. it wont fit in the slot!? Does it go in the colour slot?


Your printer doesnt support HP348 cartridge.
HP 99 Photo is the cartridge meant for 6940 which wud go in the slot for black cartridge. and you can print approx 130 photos .

Mar 28, 2009 | HP Deskjet 6940 InkJet Printer

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HP Deskjet 6940 not printing after replacing ink cartridge


My HP Deskjet 6940 is not printing. The color (left) low ink light is dark and the black (right) low ink light is flashing. I replaced the black ink cartridge with a new one but the low ink light continues to flash. No tears/rips in the circuit strip and all the copper leads appear to be connected

Sep 29, 2008 | HP Deskjet 6940 InkJet Printer

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Printer Toolbox Not Recognizing New Black Ink


The Deskjet 6940 will only show ink level for original HP cartrdgies. Refilled or reman cartridges will show as empty or unknown in the toolbox. This is not an issue with the driver, the cartrdige itself has information that it has been previously used and this is not resettable. You can continue to print with a cartrdige that has unknown ink levels, you will just not get low ink warnings.

Regards,
Bob Headrick, Micosoft MVP Printing/Imaging

Apr 24, 2008 | HP Deskjet 6940 InkJet Printer

1 Answer

Printer Toolbox Not Recognizing New Black Ink Cartridge


Pop out the cartridge and look inside the printer where the black cartridge goes. There may be punctures in the ribbon cable from the metal wire that rests against the catridge. I have lost 2 6940's to this problem.

Apr 24, 2008 | HP Deskjet 6940 InkJet Printer

2 Answers

REPLACED INK AND STILL NOT WORKING


Due to shiaty design, it is easy to accidentaly puncture the printed circuit with the sharp end of the retention spring while inserting a new cartridge. Use a flashlight too look at the white/copper sheet the cartridge makes contact with and look for a puncture (probably near the lower right side.)

Mar 15, 2007 | HP Deskjet 6940 InkJet Printer

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