Just an update... I just plugged in my new brother ql-570 label printer into my dns-323. I first plugged it into my laptop to load the drivers.
Brother printer info: http://www.brother-usa.com/LabelPrinter/ModelDetail.aspx?ProductID=QL570&cid=YahooPPC&jkId=8a8ae4cc1be37c9a011be579c0596971&jt=1&jadid=10643134021&js=4&jk=ql-570&jsid=10686&jmt=1&utm_source=YSM&utm_medium=PPC&utm_term=QL_570&utm_content=QL-570&utm_campaign=Model_Campaign
I navigated to the status page and I noticed the UPS status section was still there. So far so good.
However, I noticed there is no printer section. A real bummer since, if I remember correctly, you can clear the queue with a press of a button.
I then browsed my nas and clicked on the lp icon and installed my printer driver (I installed it on the laptop first so the drivers will exist when I did this). I then was able to print labels with no issues.
I did not try out the ups, but I'm assuming it'll work. I'll try it later (pulling the plug) after I finish downloading my torrents.
So it looks like adding a UPS and a printer to the DNS-323 via a hub will work. I just need to verify the UPS part by unplugging my UPS and seeing if my NAS will shut down.
The only tweak that's needed is that the GUI should display the printer part in the status page, but I think that is more of a feature request since the original intent was you only have a printer or a UPS hooked up to that port. Would it be possible to add this "feature" to the next firmware as it does not seem to be a difficult change.
Gary
UPDATE: I just logged into my nas box today and noticed the UPS section has the [clear print queue(s)] button and the "Battery Charge: xx%" and "Status: On-Line" lines are gone... Looks like this:
Manufacturer: APC
Product: USB2.0 HubBack-UPS ES 550 FW:840.B2.D USB FW:B2
[clear print queue(s)]