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4. Troubleshooting
Understanding the status LED

The color of the LED indicates the machine's current status.

• Some LEDs may not be available depending on model or country.
• To resolve the error, look at the error message and its instructions from the troubleshooting part.
• You also can resolve the error with the guideline from the computers’s Printing Status or Smart Panel program window.
• If the problem persists, call a service representative.
Status Description
Status LED Off The machine is off-line.
Green Blinking When the backlight blinks, the machine is receiving or printing data.
On • The machine is on-line and can be used.
Red Blinking • A minor error has occurred and the machine is waiting for the error to be cleared. Check the display
message. When the problem is cleared, the machine resumes. For some models that does not
support the display screen on the control panel, this feature is not applicable.
• Small amount of toner is left in the cartridge. The estimated cartridge life of toner is close. Prepare a
new cartridge for replacement. You may temporarily increase the printing quality by redistributing
the toner (see "Redistributing toner" on page 95).
On • A toner cartridge has almost reached its estimated cartridge lifea. It is recommended to replace the
toner cartridge (see "Replacing the toner cartridge" on page 97).
• The cover is opened. Close the cover.
• There is no paper in the tray. Load paper in the tray.
• The machine has stopped due to a major error. Check the display message (see "Understanding
display messages" on page 125).