I have two different HP printers and they each use different model numbers for replacement cartridges. With each of the cartridges I print a third less than a few years ago. It's sad when a company saves on the production of its product but doesn't reflect that change in its prices.
HP 902XL Magenta Ink Cartridge for π¨οΈ HP OfficeJet 6900 & Pro 6900 Series, T6M06AN
11 Review
HP 62XL Tri-color High-yield Ink, Compatible with HP ENVY 5540, 5640, 5660, 7640 Series, HP OfficeJet 5740, 8040 Series, HP OfficeJet Mobile 200, 250 Series, Instant Ink Eligible, C2P07AN
12 Review
Brother TN436BK Super High Yield Toner, Black - Retail Packaging
11 Review
H&BO TOPMAE Remanufactured Ink Cartridges Replacement for HP 61XL 61 XL β Envy 4500 5530 5535 Deskjet 1000 1056 1510 1512 1010 1055 OfficeJet 2620 4630 Printer (1 Black 1 Tri-Color) - Enhanced SEO
13 Review