Control Panel Power LED • Lights when the power supply is on. • Off when the power supply is off. • Flashes during the network to start up, when waiting for power off, or updating firmware. Do not turn on by using the power switch while waiting for the power to turn off (when the Power LED is flashing). Otherwise, it may not startup correctly. Error LED • Lights or flashes when an error occurs. (For information about the flashing patterns, see "Status and Errors" on page 21 .) • Lights after the power is turned on or after a reset (offline). Automatically goes out after a while to indicate that the printer is ready. • Off when the printer is in standard mode (online).
Paper LED • Lights when the roll paper is out. • Flashes to urge user to operate the Feed button. 18