Apex Microelectronics recently announced it has released a replacement chip for Lexmark toner cartridges after a firmware update by Lexmark interfered with the chips’ functionality. The replacement chip is designed for use in Lexmark’s MS310, MS410, MS510, MS610, and MS810 series of monochrome laser printers; the MX310, MX410, MX510, MX610, MX710, and MX810, MX811, and
