acf692a4_L__service_error_lights_5L__6L_atus_and_action_identification_Condition
[Cause] The HP LaserJet 5L or 6L series printer is in SleepMode, or the power has been disconnected or disrupted. [Action] To print, press and release the front panel button, or send the job to print. If there is still no response, try the following: 2. 3. 4. T5. Disconnect and reconnect the power cord at both ends. Plug the power cord directly into a wall outlet. Try a different power outlet. Try a different power cable (the power cable from a video monitor can be used). If there is still no response, contact HP or an authorized service provider for service information. [Condition] 
No lights are on or blinking.
hp error code indicator light 5L,6L, service error lights 5L, 6L
Condition