HP LaserJet MFP M139-M142 Reference Guide - Page 2

English Control panel Printer display* Shows numerical information for copy settings and event codes. Copy Options button* Press to access (Number of Copies), (Lighter/Darker), or (Reduce/Enlarge) copy options. Start Copy/Resume button Cancel button Supplies light Power button Attention light Wireless button and light* ID Copy button* Up/Down button* Press to change copy setting value. *Wireless model only. Light patterns Ready Processing Initializing, cleaning, or cooling down Error, manual feed, manual duplex, or out of paper Cartridge error Cartridge very low Printer display codes These codes may flash after initially turning on the printer. Complete setup using the HP Smart software to resolve them. Code Printer State Action Er/01 Er/11 The input tray is empty. There is an issue with the cartridge. Load paper in the input tray. Remove orange tab and cover from the cartridge, then reinstall. For a complete list of printer display codes and light patterns, refer to user guide on: hp.com/support. 1