High Page Yield - Package includes 1pc 56F1000 toner cartridge, toner coverage 5%, 6000 pages, efficiency has increased by 20%
100% Printer Compatible - 56F1000 toner cartridge is compatible with Lexmark MS321 MS421 MS521 MS621 MX321 MX421 MX521 MX622 laser printers
Laser-grade clarity + leak-proof design - 56F1000 adopts fine grinding toner + anti-fading technology, sharp text without burrs, natural and clear images
Warranty + 12 Stress Tests - The toner cartridges print 200 times continuously without degradation, which will not damage the printer
New Intelligent Chip - Containing a new intelligent chip, the toner cartridge is ready to install and use without debugging, so you can use it conveniently