Last week, Apex Microelectronics announced that functionality of its replacement chips for several OKI printers and MFPs has not been disrupted by a firmware update that OKI released on October 18. The Zhuhai, China-based chip manufacturer says it has tested its OKI-compatible chips and verifies that they work normally with OKI’s new A01.67-0-4 and A03.46-0-5