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Using the Control Panel
The Control Panel Display
The Control Panel's display performs two functions.
•It informs you of printer status conditions, such as when ink cartridges become low, when the paper tray is empty, when a job is in process, and so on. For example, when you turn on the printer, the following message appears on the display:
Ready
This message appears whenever the printer is online and ready to accept print jobs. The display will also show:
Busy PCL
when processing data, and:
Busy PCL
Supplies
in which the second line tells you that one of the print cartridges is low.