Control PanelOnline, and state of the Control PanelNot printing Printing in progress (receiving orprocessing print jobs)Display Screen• Top Level of the Display ScreenThe printer status is displayed here. The selected paper source is indicated by an icon in the upper-rightcorner.Any warning messages are displayed here on lines 2-4. Take action as needed. (→P.629)• Middle Level of the Display ScreenThe rst and second lines display the paper type and size.• Bottom Level of the Display ScreenHere, the remaining ink level is indicated. (→P.564)Control Panel• Online lampLit when the printer is online.• Data lampFlashes when print jobs are being received or processed.• Message lampLit when warning messages are displayed.26 Printer Parts