The fitment of the original version of the Canon cartridges is poor. We have no influence on the installation design of these cartridges and subsequently the remanufactured versions suffer the same problem too.
First ensure that you have removed the clip and/or tape. Then place the cartridge in the position as normal. You may then need to slightly lift the cartridge until it clicks into position. You will feel resistance to the fitment.
Printer manufacturers often use the roll out of their printer firmware updates to prevent you from choosing the origin and type of supplies you use in your printer. This has been done is ways such as blocking the use of remanufactured/recycled cartridges entirely, applying a 'cartridge lock' system that locks a cartridge's usage to a printer and introducing a new 'generation' of the same cartridge model to stop older, remanufactured cartridges being re-used.
Most printer manufacturers will prefer you to set your printer to automatically download and install their updates for this very reason. We suggest that you disable the automatic update option to allow you to continue to use remanufactured cartridges and also to recycle your cartridge after it has been used. By allowing your printer to update the firmware automatically you are risking being locked into only using the more expensive and less environmentally friendly original branded cartridges.
So we highly recommend switching off your printer's firmware automatic updates and dismissing future messages asking you to update your printer. These steps are a general guide to how to stop the updates, but please note that they will vary slightly depending on your exact printer model.
This is true for both original and remanufactured Canon cartridges. The page yield displayed by Canon is based on a 5% page coverage life test. That is, if you only fill 5% of your page, your cartridge will print for the given number of pages. If you print photos, graphics or even a full page of text, you will be using more than a 5% page coverage. So with normal everyday printing, the page yield listed by Canon is unlikely to be the same page yield that you will get out of your cartridge.