Ink in wrong chamber

Same thing just happened to my fairly new 7520 Hp.

I shut my machine first with the shut off button and then unplugged
it for about 5 minutes. Sounds like you tried this and I believe this did not work for me either so I just went into the HP official site and downloaded my printer again. Downloading your printer from their
site is easy and quick instead using the cd. It automatically removed my old printer and installed the printer again. The problem has not returned.

Another problem I just had and because I think one of my new
cartridges (yellow) is somehow damaged. I got a black line down
my pages with a note that my yellow ink is missing. Had black line only when printing and not copying. I reinserted the yellow ink and took a light damp qtip and slightly wiped the machine screen on each ink cartridge.(this screen meets the new opening from each
new cartridge. The black line left.

Hope this helps.
.

Hi,
Type "print nozzle test" in the search box and click Search. Perform a nozzle test, and if the colors match what are on the instructions, your print head and inks are OK.

(1) If the print head and inks check out OK, type "wrong colors on print" in the search box, and you will see several troubleshooting steps you can try.

(2) If the nozzle test colors are off, confirm that you are using BCI-6 inks for all three colors and the small black tank. You should only have a BCI-3 tank in the large black position. If you have all the correct inks, your machine probably needs to be serviced/ repaired.

Thank

maybe the cartridge is wrong, release it and clean the electrical contacts, put them again one by one, if notting happen, try this
Solution As the printer operates, it moves ink from the ink cartridges into a printhead reservoir. The printer does not deliver a message when an ink cartridge goes empty, because it still has ink in the reservoir. The printer continues printing until the ink level in the reservoir falls to a first trigger point - then a message appears advising the printer owner to Replace Cartridges Soon . At this point, other cartridges that are empty but have not reached the trigger point are also mentioned in the message, to save trips to the retailer. After the first trigger point, the printer can continue printing until ink levels in the reservoir reach a second trigger point. At the second trigger point there is only enough ink left to perform vital servicing tasks, and a new message appears, saying Ink Cartridges Empty . The options offered depend on the usable inks remaining. If no options are offered, the cartridges indicated must be replaced before printing can continue. The Ink Cartridges Empty options are described in the table below: Ink colors out Option Print mode possible All Cancel None Black

AND

Cyan, Magenta, or Yellow (any or all) Black only Continue with other colors Cyan/Magenta/Yellow mode (composite black)

Text and photo quality will differ from those printed when all colors are available Light Cyan or Light Magenta (either or both) Cyan, Magenta, or Yellow (any or all)

(Black still available) Print with black ink only Grayscale

Most printers use a little of all inks in their functioning, just to keep all the inks flowing, so while it is not printing yellow, it uses it in the startup mode to verify function and cleaning mode to clean the nozzles. Manufacturers usually do not put in a bypass for this, because they make money mostly on selling you ink cartridges.

Try remove all cartridges then put back it one by one.Make sure the color cartridges are not empty too.The printer need all cartridges not empty to initialized and working.

The ink cartridges on your Canon Pixma MP500
print head not problem your yellow cartridge &black
problem

Your print head is already clog, if you can find chemical solution in your area,you can try to soak it without removing the print-head, on its parking put some solution then let it be there for 24 hrs then try printing,do this for three days if nothing happens,buy a new printer, because buying a print head is not practical, it almost cost the same as a new one.

its ok I solved it! I didn't realise that all the photo cartridge does is gloss over the colour picture produced by the colour cartridge. I simply had to replace the colour cartridge which had run out, so now its all working perfectly!!

cleaned off the computer chip and it works fine now. . ..
THANKS

I had the same problem with the yellow cartridge. Yellow quit printing, put in a new yellow and still would not print yellow. I had a help file, don't know where I got it, but it suggested replacing the black ink cartridge also, even though the black wasn't low yet. Replaced the black, ran a few nozzle cleans and everything worked fine. Don't know why. Try it