I NTRODUCTION1.6Understanding the Control PanelOn Line/Error( ) and Toner Save( )LEDsLED DescriptionIf the lights green, the printer is ready to print.If the lights red, the printer is experiencing an error,such as jammed paper, no paper, the open top or front cover,or the empty toner cartridge.See “Troubleshooting Error Messages” on page 5.17.If you press the button while the printer is receivingdata, the LED blinks red to cancel printing.In Manual Feed mode, if there is no paper in the tray, theLED blinks green. Load paper into the tray and the LEDstops blinking.If the printer is receiving data, the LED slowly blinksgreen.If the printer is printing the received data, the LEDblinks green fast.