We have a line of some of the best IBM laser toner cartridges that are compatible with all IBM laser printers. We offer black ink laser toner cartridges that are very affordable and can work well with your printer. The other type of color variant that we offer is the MICR black ink cartridge or the Micro Black ink. As compared to the regular black ink, Micro black ink cartridges are more cost-efficient because they don?t use up as much ink. They have a special feature that allows them to detect how much ink to use for optimal results. They also prevent any ink spillage and leakages.