HP LaserJet MFP M234sdw PrinterSuper productive. Super compact with reliable wireless. A high productivity MFP with the fastest two sided printing in its class,[2] an automatic feeder, and the time saving HP Smart app.[6,7] Count on peace of mind from more reliable connections,[1] and a worry free experience with simplified setup. Dynamic security enabled printer Certain HP printers are intended to work only with cartridges that have a new or reused HP chip or electronic circuitry.