Question about Canon MX700 Office All-In-One InkJet Printer

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Ink Cartridge I change the ink cartridge on my Canon MP780 and it still isn't printing in black, all the cartridges are full i do not understand why it is not working

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  • stephie444 Mar 03, 2009

    I have the same problem with the black ink not printing--it sounds like it's working, but the paper comes out blank. I've deep cleaned many times and cleaned the printer head many times.

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I replaced a black ink cartridge and now it wont print. I have a Canon mp780 inkjet. I have used the maintenance function to clean the head, align the head, and do a nozzle check. Any ideas? Thanks Ron


One possibility is the cartridge you put in is a third party without the chip. If the printer is trying to read how much ink is in the cartridge and either there is no chip or the chip is faulty the printer will think there is no ink in that slot and not print.

That solution would be either to go back to canon ink or purchase from a trusted third party seller.

Jul 27, 2011 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Canon Pixma MP780. Recently my color ink


Have you checked to see if the jet area on the bottom of the ink cartridge has a blackish sludge on them? It might be that the area that the print cartridges are purged/cleaned to one side of the printer (sometimes called a service station, or spitoon) has built up excess ink that has gotten thick and high enough that as the carriage goes over that area the bottom of the cartridge gets polluted with the blackish sludge. It will work slightly into the jets where the ink comes out and cause discoloration, even after you change the color cartridge. Open the unit to look inside with a flashlight for build ups and clean it (if you find some) with disposable things like cotton swabs, coffee stirrers, whatever you have that wont damage anything inside. Another cause could be mixing of the cyan and magenta and yellow somehow inside making a dark color representing black - but replacing the cartridge would cure it immediately.

Jun 19, 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...

2 Answers

My black ink will not print. Do I have to have


The larger of the two black cartridges is used for text only printing.

The saller cartridge is used for black in graphic images or pictures.

This saves you color ink . It allows you to put the black ink on the image without making the color inks blend the black ink.

Don

Jan 31, 2010 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

I have a Canon MX850, I don't understand why my big black ink cartridge is full and it uses only the small one, how can I change to use the big one?


The printer use big PGI-5bk cartridge to print documents and text.When you print photos or some other pictures printer use small CLI-8bk cartridge because this cartridge has a photo ink.If you print text and it print blank page that mean the nozzle on PGI-5 cartridge is clogged.Try cleaning test on maintenance menu on printer.

Oct 29, 2009 | Canon PIXMA MX850 Multifunction Printer

2 Answers

Canon MX850 will not print from small Black Ink Cartridge - 8BK. It only uses the large black ink cartridge and I have a drawer full of small 8BK cartridges. How can I get it to use the small black...


Canon PIXMA MX850 Multi Function Printer Printer Canon MX850 will not print from... Answer Canon MX850 will not print from small Black Ink Cartridge - 8BK. It only uses the large black ink... (More) Canon MX850 will not print from small Black Ink Cartridge - 8BK. It only uses the large black ink cartridge and I have a drawer full of small 8BK cartridges. How can I get it to use the small black cartridge and not the large black cartridge? Thanks

Sep 30, 2009 | Canon PIXMA MX850 Multifunction Printer

1 Answer

Black ink in canon mp780 will not print black


take cartridge to a ink refill store(cartridge world,etc)they can test for free,also make sure that your contacts are clean were cartridges mate with machine,clean with alcohol,qtip,and canned air!! GOOD LUCK!!!

Jun 22, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Won't print in black


open your list of printers. r/click on the 780 and open properties. fo to the last tab "maintenance" and run cleaning 2 or 3 times then run deep cleaning 2 or 3 times. and see how this helps. If you've never done it before you might want to take out the print head and clean it with alcohol. Take out all the ink like you were changing them then reach in and gently pull out the container that holds the ink. This is the print head. Clean it and replace it, then run clean and deep clean again. run Nozzle check to see how clean it's become and you'll definetly see a difference in your printing. good luck

Sep 13, 2007 | Canon PIXMA MP780 All-In-One InkJet...

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