See also:
Replacing the print cartridge
Tray <x> Empty
What this message means:
The specified tray is out of paper.
What you can do:
Load paper in the tray to clear the message.
Tray <x> Low
What this message means:
The specified tray is low on paper.
What you can do:
Add paper to the tray to clear the message.
Tray <x> Missing
What this message means:
The specified tray is either missing or not fully inserted into the printer.
What you can do:
Insert the tray completely into the printer.
USB <x>
What this message means:
The printer is processing data through the specified USB port.
Waiting
What this message means:
The printer has received a page of data to print but is waiting for an End of Job command, a Form Feed command, or additional data.
