Question about Canon PIXMA MP760 All-In-One InkJet Printer

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Grid pattern on Canon MP760 test print is patchy and cleaning process does not fix it.

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  • chrisath Jun 20, 2009

    many thanks i will try this fix.

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  • Canon Master
  • 365 Answers

You can try to remove the print head and ink cartridges.
Soak the head in an ammonia10-20% solution with warm water for 30-45 min.
Dry the head completely and re-install.Now run your grid patter,
It sonds like(from the grid reference)that only the black is clogging.This is a pigmented ink and tend to dry if not used for months at a time.

Posted on Jun 20, 2009

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Why is my Canon Pixma 4820 suddenly leaving lighter lines through color pictures.


Worn print head. And for what they charge for a stinking print head you can get a new printer for less with a warranty to boot!

Mar 24, 2017 | Office Equipment & Supplies

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Canon IP 1980 resetting


- The service mode functions are same as those of the previous models.
1) Test pattern 1: Service test print pattern 1 will be printed.
2) Test pattern 2: Service test print pattern 2 will be printed.
3) Test pattern 3: Service test print pattern 3 will be printed.
4) Cleaning at the service test print: Check the Cleaning box and perform the service test print.
Cleaning will be performed before the service test print is printed.
5) EEPROM initialization at the service test print: Check the EEPROM Clear box and perform the
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Aug 22, 2011 | Canon Office Equipment & Supplies

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Nozzle test does not show pattern for either BLACK output; deep clean does not correct problem. both catridges have plenty ink. color displays are ok.


CANON MP780 BLACK DOES NOT PRINT

This is what works for me. Try at your own risk. I cleaned both areas.


CLEAN PRINTHEAD:

Perform a nozzle check using the Canon software under "maintenance." If the nozzle check prints successfully, the problem is most likely not with the printhead. Otherwise, 1) Lift up the lever above the ink cartridges. Take the ink cartridges out. Put them in a plastic zip lock bag. 2) The container in which the ink cartridges sit is removable. The container is inside the moving mechanism. The container is the printhead. Tilt it slightly and pull up. This should come out easily. 3) There are round pads under which the ink cartridges sit in the printhead you removed. The large one is black. On the underside of the printhead are small slits. The **** separated from the others is black. Fill a syringe with Windex. a. Run warm water over the printhead until no more ink comes out. b. Fill the areas where the round pads are with Windex. c. Set the printhead on some paper towels. The liquid will soak through and come out the underside along with the ink. Repeat steps a-c until no more ink comes out, but at least 10 times. 4) Let the print head sit and dry for two hours. Put everything back in the printer. Unplug the printer. Plug in the printer. Turn the printer off. Turn the printer on. Do a clean cycle.


CLEAN PURGE MECHANISM:

You will need a light. 1) Unplug the printer and move the printhead all the way to the left. On the far right are two rectangular basins. The smaller one is black. Take your fingernail or a tweezers and lift out the sponge pad (do not drop it). Soak the sponge pad in Windex until it turns white. Plug in the printer. 2) Fill a syringe with Windex. a. Fill the basin with liquid. b. Let it soak for 5 minutes. c. Turn the printer off. d. Turn the printer on. Repeat steps a-d until you see a small hole in the basin. e. Put the syringe over the hole and fill the basin, pushing the liquid into the hole. f. Let it soak for 5 minutes. g. Turn the printer off. h. Turn the printer on. Repeat steps e-h 5 to 10 times. 3) Put the sponge pad back in using your fingers (do not drop it). Unplug the printer. Plug in the printer. Turn the printer off. Turn the printer on. Do a clean cycle.

Nov 01, 2010 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

When printing the result is patchy do the heads need cleaning and if so how do I do this


Go into your printers properties and do a nozzle check. To do this follow the following steps.

***Click "START"

***Go to "Printers and Faxes"

***Within this new window "right click" your printer and select "properties"

***You will now see a bunch of tabs at the top click on the one that says "maintenance"

*** then click on "Nozzle check" this will pop up a box that will give you 3 options.

***click on "Print check pattern" this will do a print out and if the grids show missing lines then you will need to do a printhead cleaning.

*** click the option that that says cleaning. Your printer will then clean the printheads and once its done it should ask you if you want to do another pattern test. Run it and see if things change.

If they dont then you will need to do another printhead cleaning. If the nozzle check printout doesnt get any better you might need to replace the cartridge or cartridges.

Best of luck..
Please take the time to rate my solution to your printers problem.

Jul 06, 2010 | Canon i350 InkJet Printer

1 Answer

Even lines right across my photographs


There may be dried up ink on the side of the waste well where the head parks. You will need to get several q=tips ans lightly wet them with water. Then clean anywhere there are smaers or globs of ink. You will have to have the printer unplugged and the head will need to be moved to the other side of the printer from where it normally parks. It often takes a lot of cleaning.

Apr 06, 2010 | Cameras

1 Answer

Have Pixma MP760. Problem with magenta print nozzle, which is not functioning properly. All others functioning fine. Repeated cleaning has improved the print colour but still patchy on the nozzle check...


Are you using aftermarket/refilled cartridges? To do a complete cleaning of the nozzle, you need to use a new OEM ink cartridge. Run the deep cleaning at least 3 times. This will clear the nozzle. You will eventually have the same problem with the other nozzles as long as you continue to use aftermarket/refilled cartridges. The inks used in them are not as highly quality controlled as the OEM inks so you will end up with clogged or partially clogged nozzles. The new OEM cartridges method usually clears the problem.
Let me know if this clears the problem. Thanks.

Mar 19, 2010 | Canon Office Equipment & Supplies

1 Answer

Printing in yellow tones, all ink cartridges are full and grid pattern ok and nozzles cleaned


Possibly the print head is getting plugged or the color map settings are changed. Try removing the printer and reinstalling the drivers as well as clicking the "default" settings button after. If this does not fix it, possibly the head itself is ok on a test pattern with low ink but on printing is not delivering full ink in all colors, only yellow, indicating the head is plugging. Possibly cleaning with alcohol would help, place a drop on each place the cartridge inserts on the ink tubes and also clean the head surface where the ink comes out with a Q-tip and alcohol and then do a regular head clean.

Aug 29, 2009 | Canon PIXMA MP760 All-In-One InkJet...

1 Answer

Changed the print head in my Canon MP760 but now printing is blurred and very faint


Try cleaning the felt pads where the print head would rest when not printing. They get full of ink and cause more printing problems. I use water to clean them.Don't loose them, they are needed to keep the print head from drying out.

May 31, 2009 | Canon PIXMA MP760 All-In-One InkJet...

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