The colors of the Sleep button and indicator lights on the control panel signify a printer status or condition.
The printer is off or in Hibernate mode.
The printer is warming up, processing data, or printing.
The printer is on, but idle.
The printer requires user intervention.
The printer is off, idle, or in Ready state.
The printer is in Sleep mode.
The printer is entering or waking from Hibernate mode.
Blinking amber for 0.1 second, then goes completely off for 1.9 seconds in a slow, pulsing pattern
The printer is in Hibernate mode.