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‎07-19-2021 03:55 AM

HP Recommended

Hi guys,

 

My printe LJ MFP M575fn has a "heart simbol" in interface port, that is red light. I have never pay attetion on this simbol, but I took a look on manual instruction and didn´t see any information about it. 

phlord3_0-1626688541839.png

 

 

Any one knows what it means?

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‎07-19-2021 04:42 AM - edited ‎07-19-2021 04:45 AM

HP Recommended

That is a Heartbeat LED it changes colour and function depending on the printer initialization status. It's used for printer diagnostics. If it's solid ON and in red that's not good. The smiley face led (a little above)  is solid ON green that's good.

 

If the printer works you are fine ( smiley LED face is ON), if the printer doesn't work solid red heartbeat is for defective formatter board or memory.




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‎07-19-2021 04:42 AM - edited ‎07-19-2021 04:45 AM

HP Recommended

That is a Heartbeat LED it changes colour and function depending on the printer initialization status. It's used for printer diagnostics. If it's solid ON and in red that's not good. The smiley face led (a little above)  is solid ON green that's good.

 

If the printer works you are fine ( smiley LED face is ON), if the printer doesn't work solid red heartbeat is for defective formatter board or memory.




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