PS Products&trade; Remanufactured Ink Cartridge Replacements for Lexmark 4 18C1974 Black (Show Accurate Ink Levels) Model: Lexmark 4 18C1974 Black. Show Accurate Ink Levels. 200 Page Yield Black. PS Products Premium Quality Replacement Inkjet Cartridges are made in ISO 9002 Certified Factory. Our Remanufactured Lexmark Ink Cartridges are backed by Two-Year 100% Quality Satisfaction Guarantee. Compatible for printers: Lexmark X2690, X4690, X5690, Z2390, Z2490, Z2522.