12 | Introduction

UNDERSTANDING THE CONTROL PANEL
The color of the status and toner colors LED indicates the printer's current status.

LEDs

Stop button

STATUS TONER COLORS LED DESCRIPTION
lights green all LEDs off The printer is ready to print.
slowly blinks green all LEDs off The printer is receiving data from the computer.
fast blinks green all LEDs off The printer is printing data.
lights red all LEDs off • The printer is experiencing an error, such as open cover, empty paper, not installed waste toner
container, or full waste toner container.
• The printer is experiencing a service required error, such as LSU error, fuser error, or ITB error,
Contact your sales or service representative.
lights orange all LEDs off • The printer is experienci ng an error such as jammed paper.
• While the printer is booting up, do not open a top cover, since the printer may treat it as an error
such as paper jam. In this case, open a front cover and close it then, the printer will reboot up.
lights green each LED blinks red Each toner cartridge is near the end of its life.
blinks red each LED lights red Each toner cartridge is almost empty. You can print, but the quality is not reliable.
lights red each LED lights red • Each toner cartridge is totally exhausted. You cannot print anymore.
• Each toner cartridge is wrong.
lights green each LED blinks red in a
repeated order
The printer is warming up.
DESCRIPTION
Printing demo page In Ready mode, press and hold this button for about 2 seconds until the status LED blinks slowly, and release.
Printing configuration sheets In Ready mode, press and hold this button for about 5 seconds until the status LED blinks fast, and release.
Canceling print job Press this button during printing. The red LED blinks while the print job is cleared from both the printer and the computer,
and then the printer returns to Ready mode. This may take some time depending on the size of the print job.