E-MALL Remanufactured Ink Cartridge Replacements for Lexmark 23 Black 18C1523 and Lexmark 24 Color 18C1524 Ink Cartridge for Lexmark Z1410, Z1420, X3530, X3550, X4530, X4550 Printers (1 Black, 1 Color) Black Lexmark 23 ink cartridge contains 18ml, yields up to 500 pages per cartridge @ 5% coverage. Color Lexmark 24 ink cartridge contains 18ml, yields up to 800 pages per cartridge @ 5% coverage. Compatible Printers: Lexmark X2500/X2510/X2530/X2550/X5070/X5075/X5320/X5340/X5410/X5490/X5495/Z845/Z1300/Z1310/Z1320 Print Effectiveness: Make printing smoother, natural looking images and fewer granularities, producing best looking prints ever. Inks stop to come out automatically when printing is over. Technology: E-MALL ink cartridges are adopted the leading Print Head Cleaning Technology, Print Head Testing Machine Technology, Eco Friendly Technology, Zero-energy Technology. The cartridges underwent an extensive process including, cleaning, testing the chip, ink vacuum refilling, totally pass to 27 production lines. All cartridges reach the standard when they are tested in any severe environment. Warranty: CE, TUV, ROHS, ISO9001, ISO4001 International Quality Certified.