On March 31, Apex Microelectronics announced several replacement chips for cartridges used in Xerox and Fuji Xerox color and monochrome printers and MFPs. The Zhuhai, China-based chip manufacturer says it is first to market with replacement chips for cartridges used in the Xerox VersaLink B400 printer and VersaLink B405 MFP, the Xerox Phaser 6510 printer