Help with printer: MX870

[Corban227]

Hey i have a quick question about my printer. Its a canon MX870 multi-function printer and has worked fine for the past year. I just replaced the ink in it yesterday but green is not printing. I checked the cartridges which are all working fine, but other than that i do not know what to check.

 

[Corban227]

bump

 

[Tsuyoi]

define "checked the cartridges and all are working fine".

If it's not printing green, I don't see how you can verify how the cartridge is working fine, short of putting it in another printer.