I’ve just set up a print server (using Ubuntu 14.04 Server). It has a Dell C1760nw printer connected via USB.
After much novice configuration effort, I was finally able to print from a client (which is this machine running openSUSE 13.2).
Now I can remotely print files from GIMP and other client applications on the server printer, but the CUPS Maintenance Print Test Page shows up in the print queue with the message shown in the thread title.
The Test Page prints fine using SSH on the client remotely logged in to the server, and when logged in physically at the server (with Links).
Any ideas how to fix this?