For most printers, it is on a sticker on the back or inside the printer near the ink cartridges ... subscribers get special discount codes and early access to sales. Canon Trade-In Upgrade ...

Epson even comes right out and says it, stating that EcoTank refills can be 90 percent more affordable than older ink cartridges ... The Canon PIXMA MG3620 Wireless All-In-One Inkjet Printer ...

When it comes to printers ... I surveyed 100 ink cartridges using publicly available information from the official websites of four major brands: HP, Canon, Epson, and Brother.