The HP OfficeJet Pro 1175 Cx uses compatible ink that replaces HP 45 (51645A), a standard black cartridge rated at about 1,100 pages, and HP 23 (C1823D), a standard tri-color cartridge rated at about 690 pages. The same ink also fits the OfficeJet Pro 1170, OfficeJet Pro 1170 Cs and OfficeJet Pro 1170 Cx. Same-day shipping on most orders.
