We’ve reviewed a number of OKI printers on Office Hacks. Most of them, however, have been A4 printing devices. In fact, all our reviews till now have been for A4 printers. We’re now moving on to A3 printing machines in the market and will be reviewing as many as we can one by one from here on out. The OKI B820N happens to be the first A3 printer that we’ll be focusing on. The OKI B820N is a monochrome laser printer from the Original Equipment Manufacturer (OEM) that is known for being one of ... Keep Reading