asked Aug 15, 2008 at 7:49pm
Canon Canon Pixma MP750

Canon MP750 "Wrong Cartridge" Error

Hi guys I found this site on google, and was wondering if you guys had anything to say about my little predicament..

So a few days ago, i was printing a picture and the colors where all messy. Naturally I powered down my mp750, took out the printhead, and the ink. I gave my print head a routine warm water bath, waited for it to dry, plopped it in my mp750, and replaced the ink.

To my amazement the alarm was going off, so i read the lcd.. "Wrong Cartridge" I knew that canon trys to confuse people by calling the printing head a cartridge, so i remounted the print head and the ink. Restarted.. Nothing changed.. After a few mins of frustration (i kept remounting the printhead and restarting the printer) i starting running the "Cleaning and Deep cleaning" options from my computer. The first few times nothing happen, but one of the times im pretty sure it was a normal "cleaning" that the printer printed a page. i saw happy and shut the printer off. Next day, the error came back.. I have not gotten lucky since then. I have gone into service mode (which by the way for mp750/780 is menu-scan-copy-scan)
and reset counters, and i did the reset "all" option under the "clear" sub menu. the error will not go away. if i could get the printer to start printing it works fine, i just need a way to get the alarm to go away. Thanks guys

I am out with the same problem, haven't got the printer to
work after this msg "suddenly" showed up !!!
Done the same "repair's" as you describe. And waiting for
advices how to get around this problem !

rgds. Bjorn
by kaupang on Aug 18, 2008 at 12:13am Add comment
man, i am struggling here, wrong cartridge has come up on the screen, i have thrown it thru the bloody window, i have tried everything. please someone help me.
by tess on Nov 22, 2009 at 11:55pm Add comment
What the printer's really saying is: "One or more of the inks isn't getting from the cartridge to the face of the print head" If the head is new, it might be defective. If you've been printing awhile (and especially if you notice the prints getting "off"), the culprit is likely ink clog(s).
by wendygoerl on Jun 17, 2010 at 12:35pm Add comment
Help, message, "wrong cartridge", think one is clogged, how do I determine which one is clogged and how do I go about unclogging it
by catclaw1 on Mar 20, 2011 at 12:11pm Add comment