Troubleshooting 6-9
Ready, Data, and Attention Indicators
The following indicators light during normal operation and whenever the 
printer needs attention. Depending on the status of lighting, each 
indicator has the following meaning:
Indicator Description
Flashing. Indicates an error that you can resolve. Refer to 
Error Messages on page 6-5.
On. Indicates that the printer is ready. The printer prints the 
data it receives.
Off. [Cancel] was pressed during Ready is displayed. 
Data can be received but will not be printed. To resume 
printing, press [Cancel] again. 
Printing is canceling.
Also, indicates when paper jam occurred, toner has run 
out, cover is open, and so on.
Flashing. Indicates that a data is being received.
On. Indicates either that data received is being processed 
before printing starts, or that data received is being written 
to or read from a RAM disk or USB flash memory.
Flashing. Indicates that the printer is ready to print when 
Please wait is displayed. Also indicates that the 
corresponding paper cassette is not installed.
Indicates that the printer requires maintenance such as 
adding paper, cleaning the printer, replacement of 
maintenance kit, preparing the toner container.
On. Indicates when paper jam occurred, toner has run out, 
cover is open, and so on. If the message includes Press 
GO, press [GO] to resume printing.
The ID or Password entered for the Security or 
Administrator is not correct. Check the ID or Password, and 
enter the correct ID or password.