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@

Posted on Jan 30, 2009


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when they say TONER , its refering to the INK CARTRIDGES , Color & black ,
CANON PIXMA MP780 & MP750 uses the same INK CARTRIDGES :
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please rate this solution , hope this helps

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