Colorunion is a global market leader in the field of toner cartridge for canon . Colorunion has created a number of successful series, and printer cartridges for brother is one of them. our company black toner cartridge has undergone the electromagnetic compatibility(EMC) test including electromagnetic interference test and electromagnetic susceptibility test. The product has been improved to its resistance to the electromagnetic influence of electronic products and weather condition such as thunderstrike. Its production strictly follows the ISO 9001 international quality certification system.
we aims to build its toner cartridge for samsung printer series into an international famous brand. Ask online!