4 ms·
I have a Canon all-in-one inkjet. I almost always buy third-party cartridges off of Amazon. They seem fine, but I'm a basic user, printing only what's necessary
by bdcravens 4y ago
I have a Canon all-in-one inkjet. I almost always buy third-party cartridges off of Amazon. They seem fine, but I'm a basic user, printing only what's necessary. It always surprises me when I see the screen say it's an authentic Canon cartridge. How is this accomplished? Cloning the chips? Reverse engineering? Taking chips from recycled cartridges?
- nebula8804 4y agoDepends on the model. I used to tinker with tons of inkjet + laser models when I worked for my high school and then university IT departments. Some companies even sold bed of nail type programmers that would reset the chip on the fly. On many cartridges, the chip on the cartridge is just a simple SPI chip that maintains a print count. Easy to just erase and reset. This was common in the 00s and early 10s im sure newer printers have upped the ante. Things such as efuses, cartridges signing with a secret key could be possible and its probably inevitable if it hasn't happened already.