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You need to carry out alignment to correct the left cartridge, go to the setup on the printer, under maintenance, you will see align cartridge,perform this exercise to align the black and color cartridge and see if it will still prompt this message.
Resetting the Ink Counter When an ink tank is replaced, the ink counter must be reset. The low ink warning is only displayed properly if the ink counter is reset.
Message Prompting Confirmation of Ink Tank Replacement If an ink tank is removed, the printer will output a message prompting you to confirm replacement of the ink tank at the start of the next print job. When an ink tank has been replaced, follow the procedure below to reset the ink counter. The low ink warning is only displayed properly if the ink counter is reset. Important If infrared communication is performed in Windows XP or Windows 2000, the printer will not output the message asking for confirmation of ink tank replacement. Reset the ink counter from the printer driver when you replace the ink tank.
1 Check the message, and click Yes.
Note Mistakenly clicking No instead, will prevent the low ink warning from functioning properly. If this happens, be sure to open the driver's Properties dialog box and manually reset the ink tank counter in the Maintenance tab.
2 Select the replaced ink tank, and click OK. The dialog box allows you to select the replaced ink tank. When both black and color ink tanks have been replaced, select both Black and Color. If you have not replaced the ink tank with a new one, click Cancel.
Resetting the Ink Counter in Printer Properties dialog box
1 Open the Printer Properties dialog box and click the Maintenance tab. 2 Click Ink Counter Reset. 3 Select the newly installed ink tank, then click OK
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
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.
Your printer detects ink levels with an optical sensor that shines at the clear plastic in the center of the bottom of the cartridge. Once this area is no longer dark it will tell you to replace the ink. Since you installed full cartridges it could be that the sensor is cracking up. Another possibility is that you could have air in the ink lines that run between your cartridges and the print head. When this happens the printer cannot print the color that has air in the lines. You should be able to look in your printer to see the ink lines and see if there is air in the black one.
I just got off the HP help line. After changing my black ink cartridge a test page was printing each time I turned the machine on. This is very costly, in both time and ink as the cartridges themselves for this machine hold very little ink. I tried to learn from HP tech how to turn off the test-print while keeping my color cartridge empty. It turns out that you cant do it. HP requires you to keep buying and using cartridges whether you need them or not.If you buy the color ink it will use it up in its testings. And if you dont buy the color cartridge it will use up your black ink by printing the test each time you turn on the printer. The printer was inexpensive sure, but I'm paying for it in wasted ink.