Epson Pro L30002UNL 30,000-Lumen HDR Pixel-Shift DCI 4K Laser 3LCD Large Venue Projector (White) - Manual (Page 293)

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Projector Light Status
The lights on the projector indicate the projector status and let you know when a problem occurs. Check
the status and color of the lights and look for a solution in the table here.
1 On/Standby light
2 Status light
3 Laser light
4 Temp (temperature) light
5 Filter light
On/Standby
(power) light Status
light Laser
light Temp light Filter
light Status and solution
Blue Off Off Off Off Projector is in standby mode or
network monitoring and control is in
progress.
Blue Flashing
blue Varies Off Off Warming up. Wait for an image to
appear.
Blue Blue Varies Off Off Normal operation.
Blue Flashing
blue Off Off Off Cooling down. All buttons are
disabled.