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

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The 3ebk nozzle check shows problems and prinitng is blurred

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You should remove all inks and then lift the lever to remove the printhead. You can dab the bottom on a paper towel damp with water to clean old ink and paper dust off the nozzle area. Re-intalll printhead and inks, do at least 2 deep cleans, if not improved you will need a new printhead. The part number is stamped on the side of the printhead.

Posted on Feb 05, 2010

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Hi,

First of all you take out your cartridge form printer and try to clean nozzle from tissue paper then insert the cartridge in your printer then take a print out. If it is still not working then you have change your cartridge.

Regards

Ashly

Posted on Feb 04, 2010

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1 Answer

How do i clean the printhead on my pixma mp750


If you open the preferences option for your printer there should be a maintenance tab with easy options for cleaning and checking the results. The alternative is to use the menu directly on the printer: 1. Press Menu twice to show "2. Maintenance" 2. The first option is NOZZLE CHECK 3. Press OK This should give you a print showing the current state of each colour. If there are any missing lines in 3eBK or lines in any colours then perform the head cleaning below. 1. Press Menu twice to show "2. Maintenance" 2. Press + to show "CLEANING" 3. Press OK Repeat the nozzle check after each clean. If not improved after three attempts try a deep clean as below (cleaning uses up ink) 1. Press Menu twice to show "2. Maintenance" 2. Press + twice to show "HEAD REFRESHING" 3. Press OK Repeat the nozzle check. If still not printing correctly there are various external solutions available to clean the print head such as http://www.printheadhospital.co.uk/canon-hp-printhead-cleaning-kit.html

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