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

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Whenever I replace the 3E black ink in my Canon MP780 printer, the printer quits printing.  I have tried all the cleaning remedies on the menu.

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Because the print heads are gummed up with old ink and need to be cleaned with some alcohol and an old rag. do not get the ink on your fingers its hard to get off...good luck...

Posted on Nov 13, 2009

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1 Answer

Will not print in black. will print in color. I


Sounds like a badly clogged nozzle. If you are using aftermarket/refilled cartridges, the changes are the ink is not up to manufacturer specs and has dried and clogged the nozzle. The best way to clear this is to take a new black ink OEM cartridge and run the deep cleaning a number of times (at least 3) to see if the nozzle can be cleared. If you continue to use non-OEM cartridges, I would keep a set of OEM cartridges around for nozzle clearing purposes. Also, take the aftermarket ink cartridges back to the vendor and either get an upgraded cartridge or refund.
Let me know if this corrects the problem. Thanks.

Mar 18, 2010 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Printer won't print black ink


The black is always the first to wear out on the printhead. If you are using a refilled cartridge check the side of the cartridge, if you can see ripples near the hole at the bottom then the blotter material has been pushed up inside and can't contact the filter in the printhead. If all is good you will need a new printhead, QY6-0049-000

Feb 25, 2010 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

My canon PIMXA MP780 is not printing from the large Black


The black is the first to wear out on these printheads, you will need a new printhead, QY6-0049-000.
You will only waste inks trying to clean or deep clean, the best bet is to replace the printhead and if all else is ok you will get many more trouble free prints and better quality color prints.

Feb 22, 2010 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Canon Pixma MP780


The printhead is plugged or burned out for the 3EBK. You need a new printhead, QY6-0049-000, around $40.00.

Jul 01, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

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I got a paper jam while printing.Know my brother mfc-290 will not print black

Apr 25, 2009 | Office Equipment & Supplies

1 Answer

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Try a "hard restart", which simply means unplugging the power cord and replugging it after a few seconds have passed. If that does not work, then rerun the CD you used when you originally installed the printer. Both techniques reprogram the printer to certain extent. Hope one of these methods works for you.

Jun 28, 2008 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Canon Pixma MP780 Printer - black 3e fails to print


installed a new Print-Head, but that was no changes. I use refill ink, and it seams the BlackInkTank is not exactly on the Printhead and it is Air in the Pipe, i take the Printhead and the Ink-Cardridge in the Bathroom, and press the Ink-cardrige on the Printhead and take a hard breath and blow in the Air-Holes of the Ink-Cardrige until black ink come out of the Printhead, reinstall in the Printer, end it works well.

sorry about my bad english

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

1 Answer

Black will not print


This may seem obvious but have you tried cleaning and refreshing the print heads? I've had a similar problem with only certain colors and the cleaning seemed to help.

Nov 06, 2007 | Canon PIXMA MP780 All-In-One InkJet...

2 Answers

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The black cartridge printhead needs to be cleaned or replaced. Follow your printer manual instructions.

Mar 18, 2007 | Canon PIXMA MP780 All-In-One InkJet...

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