How do you or Can you shut down fans on ValueJet?

When I send a print to my 1304 and it's done the vac fans stay running for a long time maybe up to an hour. Then they will shut down. If I send another print they will turn on again and shut down about an hour after it's done. Now sometime during the night, I'm assuming it's got to do with a auto cleaning or something, they must come back on because when I come into the shop in the morning they are running and they will never shut off unless I print something then it will shut off in about an hour.

I've tried figuring out if there is a timer or something I'm not seeing in the menu, but no luck. They just don't need to run constantly and I can't believe they are supposed to.

Any ideas?

 

Ok, I figured out that the fans run as long as you have the Standby Heating is set for in the Media Type. But why do they come back on during the night and never shut off again after that?

 

Yeah, I know I can do that. I was just hoping there was a way to set it up to go into that standby mode on it's own. I don't always think about putting it into sleep mode when I leave at night.