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. I alcohol-swabbed the connections and still nothing.
Re: HP Deskjet 6940 not printing after replacing ink...
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
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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.
Check the ink levels by opening the HP Solution Center. Click on "Settings." Click on "Toolbox." Click on "Services." Click on "Service this device." Click on "Estimated Ink Levels." A graphic will appear showing the estimated ink level in each cartridge.
Verify that the unit is on. Open the print cartridge door allowing the print carriage to move to the far right side of the unit. Once the print carriage has stopped, lightly press down on a print cartridge to release it. Pull the print cartridge toward you out of its slot. To replace the tri-color print cartridge, remove the print cartridge from the slot on the left. To replace the black or photo print cartridge, remove the print cartridge from the slot on the right. Place the cartridge in a plastic bag as it may still contain some residual ink and may leak.
Remove the new print cartridge from its packaging. Remove the plastic tape by using the pull tab, being careful to not touch the copper-colored contacts or the ink nozzles under tape.
Slide the new print cartridge forward into the empty slot. Gently push the upper part of the print cartridge until it clicks into place. The tri-color print cartridge fits into the left slot. The black or photo print cartridge fits into the right slot.
Close the print cartridge door. If the print cartridge alignment sheet prints, load it on the left front corner of the scanner glass with the top of the page to the left. Verify that there is plain paper loaded in the input tray, and then press the "Scan" button to align the printer.
the moving ink frame is probably pointing to a symbol such as replace color ink( three dots on ink cartridge picture). Replace color ink. You are probably printing your black and white documents with colored ink--always select black or greyscale.
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.
The light you describe is the ink light. When that light is blinking, try this.
Turn on the printer. Open the front cover and look at the carrier for the ink cartridges. There is a white arrow right above the latch for the color cartridge. Once the carrier stops moving, the white arrow should be pointing to a symbol which represents the problem (the reason the light is blinking.) Examples are low ink black, low ink color, sick black ( replace ) , sick color ( replace ).
IF you have just replaced your black cartridge, you might need to replace your color cartridge too. This printer will not work without both ink cartridges installed and full. You cant print with a full black and an empty color cartridge unfortunately, even if you only want to print black.
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
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.