On September 14, Apex Microelectronics announced that it has released replacement chips for cartridges used in OKI A4 color single-function printers and MFPs. Apex says its replacement chips are for cartridges used in OKI’s C332dn, C532dn, MC363dn, and MC573dn models sold in North America, Europe (except the C332dn), the Middle East, and Asia Pacific, as
