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Have a cannon mp730 multipass screen shows wrong cartridge cartridges are ok ?

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  • dj1766 May 10, 2008

    Just started to receive an error message - wrong cartridge" on my MultiPass MP730 machine. Nothing seems to resolve the problem. Cartridges are ok.

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1 Answer

MPC730
Resetting the Waste Ink Volume Counter
1) Enter SERVICE MODE.--- By pressing Menu-Copy-# 2) Select TEST MODE [set]. 3) Select [8] PRINTER TEST in TEST MODE 4) Select 3. [EEPROM CLEAR]. 5) Select 0. [INK COUNT]. 6) Press the [OK] key. 7) Press the [Stop/Reset] key (returning to the state of 3)), and then press the [ON/OFF] key.


If the printheads are badly clogged and the printer driver cleaning cycles aren't fixing it, you may try the 
following:
First effort: put a few drops of cleaning solution onto the park pad "sponge". This is that sponge-looking thing 
(actually a hard plastic foam) where the head sits when not printing. Just do whatever it takes on that printer to 
unpark the heads as if you were going to change cartridges, then close it up and let it sit for a day before you 
run a cleaning cycle and nozzle check again.
Extremely Thorough Cleaning: Take the head out, remove the cartridges. If you've saved the orange seals, tape them 
onto the cartridges, if not then wrap black electrical tape around so it covers the ink outlet and the little air 
inlet on top. Only pull it snug across the ink outlet, not tight, and fairly loose on the cartridge body to prevent 
tape creep.
I then just stick the head under a stream of hot tap water. I use a soft plastic eyedropper to squirt the above 
cleaning fluid into the ink inlet meshes on the head and to flush ink off the bottom of the head. Careful not to 
touch the nozzles!
As you squirt cleaning fluid into the screen, a lot will rush back out, that is fine as it is flushing ink and gunk 
back out rather than forcing it through the nozzles, which are far finer than a human hair.
When you see little or no more color in the water or cleaning solution, force some of the straight 
filtered/distilled water into the screens. Rinse the outside of the print head with straight isopropyl alcohol (99% 
is better than 50% for this) and pat dry with a clean cotton towel (-not- paper towels) and again, DO NOT TOUCH THE 
NOZZLES.
Patience is a virtue. I've bought a lot of Canon printers in thrift stores with full cartridges because the heads 
clogged, they bought new cartridges, that didn't fix it so they tossed it at Goodwill. I clean them up and for 
$12.95 I get $45 worth of brand new cartridges and a backup printer. I only had two heads be unsaveable, those 
would print on all nozzles but had sprung internal leaks between two colors, cyan and yellow. The symptom was 
yellow nozzle checks print green, and the ink inside the yellow cartridge slowly turns green.
---------
Re: Removing Canon MP730 Printhead  Please try at your own risk -- A word of caution: The Print head is sitting in a cradle. So do not confuse the cradle with actual print head. The cradle is the one 
that slides left and right on the metallic rod. Do NOT try to remove the cradle. Here is the link to canon to get 
some guide:
http://64.233.167.104
Make sure to use genuine Canon ink cartidges.
1) Unplug the power to the printer. Remove the USB printer cable. 2) Lift open the top cover by depressing the round button on the right side of the printer; exposing the printer 
ink cartridges. 3)Lift the grey lever on top of the cartridges. This dis-engages the printhead electrical connections. Remove all 
the 4 ink cartridges from the printhead. From the cradle hold the printhead from the top and lift the printhead by 
tilting it toward you. Make sure not to touch the electrical contacts in the back printhead. 4) Take a small plastic bowl and fill it with 1/4 inch or less with Rubbing Alcohol(70% Isopropyl Alcohol). Dip the 
bottom of the printhead in the alcohol. Soak printhead in the alcohol and shake it lightly so the dried ink 
clogging the printhead can come loose. Us paper towels to soak excess alcohol from the bottom of the printhead. 
Make sure not to damage the printheads. 5) Pour some alcohol from the top of the each inlet of the ink cartridge seat and again soak up any excess alcohol 
with paper towel. Let the print head dry up little. 6) Put the printhead back in the cradle and insert back the ink cartridges in their right seat. Lower the grey 
lever back into its position so the electrical contacts are made on the printhead. 7) Plug the power and USB port. 8) Print a picture or diagram with color in draft mode. You might have to do this couple of times, so that the inks 
starts flowing from the ink cartridge through the print head. Then print the same in high quality. If the heads are 
unclogged your printer should work as new.

Posted on Apr 05, 2008

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1 Answer

WRONG CARTRIDGE


Press the reset button if they can correct that problem. Maybe you can used the not genuine cartridge on your printer or it could be not properly inserted your cartridge. Try to power off the printer and check your cartridge then power on it again.

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Hello,

If you changed the toner cartridge before the previous one was completely empty, it is possible the machine simply did not reset.

Turn the power off and take the new toner cartridge out. Turn the power back on and wait for a message telling you there is no toner.
When you get the no toner message re-insert the new toner cartridge.

If this does not clear the message, you will need to find the button to press to manually reset the toner cartridge from Canon.

Thanks,

Pat

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Re cannon mp730 all in one -I keep getting ?wrong cartridge? error msg. when I followed the solutions that had been posted a month or two ago, removing the cartridge holder, etc. I found that the ink was...


Your print head may be damaged. You might consider replacing it.

Canon suggests pulling the ink wells and also pulling the print head and then reinstalling the whole assembly. They consider this a reset. It is also suggested to replace the printhead which the ink cartridges are housed in. I have done this to remedy bad printing and am considering this $50 purchase as I am dealing with "wrong cartridge" message also. Some have said replacing the printhead remedied this code problem. BUT, i did read one person who said this did NOT work. Right now I am debating whether I should put $50 dollars more into this machine....although this printer has been excellent and many agree.
Comments: Apr 17, 2010 - As a follow up I did fix my "Wrong Cartridge" message by replacing the printhead, I worked and worked at cleaning the old one but finally gave in and anted up the $50. This fixed it! Long live DIYers!

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QY6-0064-000 around $40.00

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