https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-MG7720-New-Ink-Cartridges-Not-Registering/m-p/232272#M25672 <P>I have a canon pixma MG7720 and I just replaced the Gray and Black ink cartridge that were completely empty with new ones and the are not registering what can I do</P> Tue, 22 Nov 2022 20:16:32 GMT alexa2018 2022-11-22T20:16:32Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-MG7720-New-Ink-Cartridges-Not-Registering/m-p/232272#M25672 <P>I have a canon pixma MG7720 and I just replaced the Gray and Black ink cartridge that were completely empty with new ones and the are not registering what can I do</P> Tue, 22 Nov 2022 20:16:32 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-MG7720-New-Ink-Cartridges-Not-Registering/m-p/232272#M25672 alexa2018 2022-11-22T20:16:32Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-MG7720-New-Ink-Cartridges-Not-Registering/m-p/242447#M25673 <P>Hello.</P><P>&nbsp;</P><P>Make sure that new, genuine Canon brand ink tanks are being used with the printer.&nbsp; Also, ensure that you are using the correct series of ink tanks for your product.</P><P>&nbsp;</P><P>If you continue to have difficulties, find more help at <A href="http://Canon.us/ContactLI" target="_blank">Contact Us</A>.</P><P>&nbsp;</P><P>&nbsp;</P> Thu, 03 May 2018 17:37:26 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-MG7720-New-Ink-Cartridges-Not-Registering/m-p/242447#M25673 Michael 2018-05-03T17:37:26Z