Mac won't sleep

[Gary Herm]

My desk top mac has suddenly decided to not sleep anymore. Can anyone tell me how to fix this ? Thanks.

 

[Kaveman]

This normally means there is a Process keeping it awake.
Unless you changed the sleep settings.

Check Activity Monitor for any precess or old App that might be keeping it awake.

 

[Gary Herm]

Thanks Kaveman. What's the activity monitor ?

 

[Kaveman]

It's an App in your Utilities Folder.
Type activity into Spotlight is a quick way to find it.

 

[Gary Herm]

Thanks,
I found "1's" by Prevent Sys. Sleep named: pid 49 "org.cups.cupsd"
and byEnable Idle Sleep. Solution at this point ?

 

[Gary Herm]

Yeah !
I actually found out what it was. I had switched printers when the first one ran low on ink, and it was(foolishly) still trying to print the jobs I had sent it. I went back to the activity folder, and there is no longer a "1" there.
An old dog learned a new trick ! Thanks so much for your help !

 

[Kaveman]

Yep, spot on!