Question about Canon PIXMA MP780 All-In-One InkJet Printer

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Crooked images on pixma mp780

My canon pixma mp780 keeps printing crooked about 30 to 70% of the time. I'm using cardstock for greeting cards. Its getting worse.I can't find any info on this problem.

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Re: crooked images on pixma mp780

Thats cause the board is too thick for the prinnter or your rollers might need servicing

thats the service manual

Posted on Dec 31, 2007

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I have a canon pixma 780. I hardly ever use colour yet the colour cartridges keep running out.

Every time you turn on your printer, it goes through a print head cleaning routine and the print head nozzles flush all the inks into the cleaning pads. This is why the inks are levels are dropping even though you have not printed anything.

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There seems to be a calibration problem. Follow the calibration test from the manual.

If you are using original cartridges, go to canon for repair.

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Canon Pixma MP780 - repeated paper jams, paper crumples up under print head.

Hello there
This may work for you, it has worked for many here I given this advice so gave it a try it could work for you. Generally when this happens, something has fallen into the printer, or a piece of paper has been jammed in there.

First step, remove the ink cartridge, and turn the printer upside down and gently shake it, see if anything comes out.

If nothing goes, or you can't hear anything rattling around, get a piece of cardstock paper (60lb or heavier) and gently push this through the printer, to see if it will help push out what might be stuck in there.

And gave the rode that the ink slides on a good clean and maybe a bit oil on cloth and wipe the rod with it.

Please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
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Feb 22, 2010 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Pixma MP780 that will not print


If you have installed the driver and can print out a test page that means your computer is communicating with your printer.

Try to use wordpad and before you print, hit on ctrl-p then choose the pixma as your default printer. then try to print the document, you can use microsoft word as well for testing.

keep me updated

Jan 08, 2010 | Canon PIXMA MP780 All-In-One InkJet...

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yes, first change the paper setting button to normal, then you can lower the image quality on copies.

Nov 10, 2009 | Canon PIXMA MP780 All-In-One InkJet...

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Can the Canon Pixma MP780 printer be made to print wirelessly


The MP780 is not a wireless printer. It must be connected via a USB cable. Please see the information here:

Canon MP780 Support

Thanks for using Fixya.

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check in the back of the printer, open the little door to see if there's still paper in there.

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try to print as T-Shirt transfer - the printer automatically mirrors the printout then

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Here is what I did and it now works just fine.I turned off the printer and unplugged the power cord, and unplugged it from my computer. I then removed all the ink cartriges and removed the print Head I got some rubbing alcohol put it on some toilet paper and wiped down the back and bottom of the print head.Plugged everything back in and It now works better then ever.

Feb 08, 2008 | Canon PIXMA MP780 All-In-One InkJet...

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