Why are my printers showing offline even though they are working?

Hello,

I have a strange issue where we recently moved buildings and we have a Windows 2008 standard server as a print server. We updated all the IP address on the printers, and configured the new IP addresses in the server properties on the server. For some reason a couple of printers say offline but they print normally. Usually if they are working I wouldn’t complain but it is confusing my users. Does anyone have any ideas on what might be causing this?

Thanks