mx850

Many of laser printers and inkjet printers can deliver their printout counts via service mode, driver interface or their own programmes as I know. What about canon inkjet printers? I made a google search and looked the user manual but couldn't find any information about how to find the printout...

Can I use qy6-0067 printhead for my canon mx850. Some say that this printhead is same as qy6-0075 and and can be replaced but some say mx850 model printers work only with qy6-0075. I am confused any opinions?