HP Deskjet 6940 InkJet Printer Logo
Anonymous Posted on Apr 03, 2017

Hi, I have a 6940 deskjet printer. When trying to print the printer attempts but nothing comes out. First the black ink cartridge light was blinking, we had already reset the cartridges and checked their ink a few times. I ran some HP updates "critical communication.." and the ink light stopped blinking, but now the On light and the Down Arrow blinks.... where is some easy steps for checking what the meaning is for all the lights... I looked thru the on-line pdf manual in troubleshooting. Also is there a way to disable the HP Assistant which seems to just supply a few resolution messages but doesn't really seem to help all that much. Thanks!!!

5 Related Answers

Anonymous

  • 9 Answers
  • Posted on Oct 29, 2007

SOURCE: HP PSC 1350v Check Print Cartridge Light

Check the date on your ink cartridge.  I bet it has expired. If you put in a "new"cartridge but it is even an HP one with an older date, it may not work.
I had my printer stop in the middle of a print job.  It was printing fine and suddenly would not print.  So I refilled the cartridge with an ink kit I had on hand and reinserted it--no go!  Then I opened a remanufactured cartridge (office depot) I had bought some time ago and inserted it.  No go, despite the fact I could see ink coming from the jets.  I finally gave up and bought a new HP ink cartridge, and it worked just fine.  But it bugged me why the new one would work and the other two that seemed just fine would not.

Later I learned that HP has a chip that reads the expiration date on the cartridges and that is what keeps those old ones from printing.  I found one trick of setting my date on my computer back to a year earlier than the exp date on the cartridge.  I saw the date on the remanufactured one I had tried earlier was 2005, so I set my computer date to today date but year 2004.  After forcing me to do print alignments several times and take the remanufactured cartridge out and put it back, I got it to print just fine.  And that 2005 cartridge that would not work earlier is what I am printing with right now.
Be advised, though, if you try the date setback, that HP printer will buck and try every way to not let you use that old cartridge.  You must say no to reflashing if HP tries to pull that on you.  And you will take out and put back that same cartridge multiple times and keep printing alignment sheets 3 or 4 times before you are successful.  But, if you persist, you can get it to work.

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Anonymous

  • Posted on Feb 12, 2008

SOURCE: HP Deskjet D2360 Printer

i want the printer drivers HP deskjet D2360

Anonymous

  • 2 Answers
  • Posted on Oct 22, 2008

SOURCE: 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

Anonymous

  • 73 Answers
  • Posted on Apr 14, 2009

SOURCE: HP 6940 color cartridge light will not stop blinking

Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Hi,
I might have an idea why this is happening....The print cartridges might need cleaning...
Follow the steps below to do this....


Step one: Remove the black, photo print cartridge, or the gray photo print cartridge

NOTE:
The black, photo print cartridge, or the gray photo print cartridge is in the right side of the carriage. -Lower the cover of the product.
-If the print cartridge status light flashes, proceed to Step two: Replace the print cartridge.
If the print cartridge status light is off, proceed to Step three: Manually clean the print cartridge.
Step two: Replace the black, photo print cartridge, or the gray photo print cartridge and remove the tri-color print cartridge
- Remove plastic tape from new ink carttridge CAUTION:
Do not touch the print cartridge ink nozzles or copper contacts. Touching these parts will result in clogs, ink failure, and bad electrical connections. Do not remove the copper electrical contacts.



NOTE:
The tri-color print cartridge is in the left side of the carriage.
-Lower the cover of the product. -If the print cartridge status light stops flashing, proceed to Step three: Manually clean the print cartridge.
If the print cartridge status light still flashes, replace the tri-color print cartridge. If the issue continues, service the product.


Step three: Manually clean the print cartridge
1. Gather the following items to clean the print cartridge and carriage:
o Clean distilled water. Use bottled or filtered water if distilled water is not available. Tap water can contain contaminants that damage the cartridge.
o Clean cotton swabs or any soft, lint-free material that will not stick to the cartridges (coffee filters work well).
o Sheets of paper or a paper towel to rest the cartridges on during cleaning.
2. Open the product cover, and wait until the carriage stops moving.
3. Remove the print cartridge, and place it on a piece of paper with the nozzle plate facing up.

NOTE:
Clean the contacts quickly so that the print cartridge is not outside of the product for more than 30 minutes. If the cartridge is outside of the product for too long, the ink can dry and clog the nozzles.
4. Unplug the product.
5. Dip a swab in the clean water, and then squeeze it to remove most of the moisture. The swab should be only slightly damp.
6. Clean the print cartridge contacts. Do not touch the nozzles.
7. Clean the contacts in the carriage, inside the product.8. Either let the print cartridge sit for ten minutes to allow the cleaned area to dry, or use a new swab to dry it.
9. Reinstall the print cartridge.
10. Plug the product back in.
11. Close the product cover.


Good Luck!
If there is anything more I can do for you please let me know if not and the problem is solved please rate it, Thanks, JCE

Anonymous

  • 3153 Answers
  • Posted on Aug 12, 2009

SOURCE: cartridge empty light

A few basic causes.

1. The cartridges you bought iwere not proper HP ones and many "clone" cartridges are known to have problems with the ink level chips

Take them back and get them replaced with a different brand

2. They are original cartridges but may still be faulty (rare but possible)

Take them back and get them replaced

3. Your print head is clogged or faulty

Run your printerthrough the head cleaning process a few times and see if it clears up.

4 your cartridges are out of alignment

Run your printers alignment test

I would suspect number 1.


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