Hello, I removed the plastic seal ball from my empty canon PGI-520 / CLI-521 cartridges and after filling them I used a self tapping flange screw in place of the ball to seal. The flange of the screw must be shallow enough not to foul ( don't use panhead screws, they are not shallow enough ) the mechanism.
I used a scalpel knife to trim up the seal breaks on the orange protective cap and the bottom of the cartridge to get a good seal held on tight by an elastic band.
Everything seems to have worked out fine but I'm not sure if I need re-seal the air hole on the cartridge for storage until I actually use the cartridge again as I have a spare set of cartridges. I didn't seal the air hole before I filled up the cartridge, I'm not sure if I should have or not.
Thanks for your help.
I used a scalpel knife to trim up the seal breaks on the orange protective cap and the bottom of the cartridge to get a good seal held on tight by an elastic band.
Everything seems to have worked out fine but I'm not sure if I need re-seal the air hole on the cartridge for storage until I actually use the cartridge again as I have a spare set of cartridges. I didn't seal the air hole before I filled up the cartridge, I'm not sure if I should have or not.
Thanks for your help.