HP 123 Tri-colour Ink Cartridge Approx. Page Yield ~ (colour) 100 pages - Approximate average based on ISO/IEC 24711 or HP testing methodology and continuous printing. Actual yield varies considerably based on content of printed pages and other factors. For details, see http://www.hp.com/go/learnaboutsupplies. Compatible Printers: HP DeskJet 1110 Printer HP ENVY 4513 All-in-One Printer HP ENVY 4520 All-in-One Printer HP ENVY 4521 All-in-One Printer HP ENVY 4522 All-in-One Printer HP ENVY 4523 All-in-One Printer HP ENVY 4524 All-in-One Printer HP ENVY 4525 All-in-One Printer HP ENVY 4527 All-in-One Printer HP ENVY 4528 All-in-One Printer HP OfficeJet 3830 All-in-One Printer HP Officejet 3831 All-in-One Printer HP OfficeJet 3831 All-in-One Printer HP OfficeJet 3832 All-in-One Printer HP OfficeJet 3833 All-in-One Printer HP OfficeJet 3834 All-in-One Printer HP Officejet 3835 All-in-One Printer HP OfficeJet 4650 All-in-One Printer HP OfficeJet 4651 All-in-One Printer HP OfficeJet 4652 All-in-One Printer HP OfficeJet 4654 All-in-One Printer HP OfficeJet 4655 All-in-One Printer HP OfficeJet 4657 All-in-One Printer HP OfficeJet 4658 All-in-One Printer *Blister pack is a term for several types of pre-formed plastic packaging used for small consumer goods