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

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Error: Wrong Cartridge

Copier/fax will not work at all - I've replaced ink cartridges. Can only fax outbound. Cannon MP780 printer posts a wrong cartridge message. Will not print, copy, etc. Turned on and off, replaced cartridges, tried to re-calibrate heads. Please Advise?

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  • jazper6 Aug 10, 2008

    I have the same problem. Any suggestions?

  • Anonymous Aug 11, 2008

    Mine started this this morning

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Yup I had the same problem and there is only 1 valid solution. Change the print HEAD. its a removeable item that is easily replaced. all you need to do is remove the ink cartridges (All) and flip up the lever where the cartridges are . This will allow for the removal/replacement of the head assembly. You can alays try cleaning this head assy with (Ammonia D) just in case you are one of the lucky one just to have a defective connection. Note: Worked for me and everyone else I ever saw with this error. (I bought my head on ebay)

Posted on Jun 09, 2009

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U162 error on black ink cannon printer


This error occurs when printer fails detecting ink level or printer assume that no ink in the cartridge. We cannot use print, copy,scan, and fax function before the problem fixed. It's recommended for you to replace ink cartridge. To continue using the printer without replacing the cartridge we must deactivate ink level detection function. Be aware that printing in this condition can damage the printer while sending fax or scan is not problem.


If you need any technical help on printer then you can reach at http://www.vtechsquad.com/

This error occurs when printer fails detecting ink level or printer assume that no ink in the cartridge. We cannot use print, copy,scan, and fax function before the problem fixed. It's recommended for you to replace ink cartridge. To continue using the printer without replacing the cartridge we must deactivate ink level detection function. Be aware that printing in this condition can damage the printer while sending fax or scan is not problem.

This error occurs when printer fails detecting ink level or printer assume that no ink in the cartridge. We cannot use print, copy,scan, and fax function before the problem fixed. It's recommended for you to replace ink cartridge. To continue using the printer without replacing the cartridge we must deactivate ink level detection function. Be aware that printing in this condition can damage the printer while sending fax or scan is not problem.

Original source: http://ij-forum.blogspot.com/2008/12/error-message-check-ink-u162u163.html#ixzz2Cpr4Be1K

This error occurs when printer fails detecting ink level or printer assume that no ink in the cartridge. We cannot use print, copy,scan, and fax function before the problem fixed. It's recommended for you to replace ink cartridge. To continue using the printer without replacing the cartridge we must deactivate ink level detection function. Be aware that printing in this condition can damage the printer while sending fax or scan is not problem.

Original source: http://ij-forum.blogspot.com/2008/12/error-message-check-ink-u162u163.html#ixzz2Cpr4Be1K

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

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