I was excited to see these cartridges in my printers size. I have never used "knock off's" before but so many positive reviews so, I bought 5 sets of ea. color. (I have a canon mx870 model). NONE of these cartridges worked right with my machine. I started having major problems with my printer. Getting "error code 5100" which made me re-boot printer every time one sheet printed-some other issues were after installing a new cartridge the printer would not print at all. I ended up throwing all of them out. As soon as I used my OEM cartridges the printer worked like a charm? Very odd? I have been warned by other canon owners that CANON has a special code installed in their OEM cartridges to prevent users from buying non-canon cartridges? I will not be buying these-waste of money for my machine!!
- How accurate was the sizing? N/A