Question about Canon PIXMA MP750 All-In-One InkJet Printer

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Black ink not working

My canon pixma MP780/MP750 has a problem .If you press the black button the printing is so light you cannot read it. The colour button is working , it is still light but it can be read. even with new ink jets it still doesn't work

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  • dmb3412 Feb 17, 2009

    our printer the black ink will not work and we bought a new ink cartridge and put it in and it still dont work

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Increase the colour back and if this doesnt work try deep cleaning and if that fails its the cartridge ........i have had the same problem and deep cleaning on the printer via the computer program for printers solved it .
go to start..then to control panel look for printers and faxs icon right click it then gpo to properties and look for advanced and in you go direct the computer to printer deep cleaning and then try that first cheers... tids2u@ hotmail.com

Posted on Jan 30, 2009

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Posted on Jan 02, 2017

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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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May i know if you use an original ink for your printer..?

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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

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The Unset mistake:
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##342. Cleaning absorption waste ink capacity full
##343. Ink detection waste ink capacity full

1. Include the printer.

2. Press button Menu , then Scan , Copy and once again Scan (entry in service mode, on дисплее will appear #1 SSSW)

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1 Answer

Black ink in canon mp780 will not print black


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2 Answers

Toner


when they say TONER , its refering to the INK CARTRIDGES , Color & black ,
CANON PIXMA MP780 & MP750 uses the same INK CARTRIDGES :
BCI-3eBK for BLACK & BC-31C for color

please rate this solution , hope this helps

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1 Answer

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Whilst you rarely print in colour, its important to know that you should try to print in colour at least once a week. This will reduce the risk of your colour nozzles blocking up.

Many people have gone out to replace their 'hardly used' colour cartridges when they dont work, thinking that they have dried up, when infact its simply blocked nozzles.

If you want to keep your colour nozzles and ink ready to run, just do a full colour alignment every 1-2 weeks. Minimal ink usage there and you keep your Canon MP780 running well!

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