I can do that as user of the AS/400 or do I need admin privileges? Maybe the AS/400 system is kicking me out of the PRTMVC1 queue because of paper size configuration isues. Sorry if I'm asking dumb questions but I'm really neophyte to AS/400's world.
Depends. The "super user" on the AS/400 (or iSeries or System i) is called QSECOFR. If you're a Linux/Unix guy, you're used to it being called "root", but it's QSECOFR (It starts with a Q because everything that comes shipped from IBM starts with a Q -- it's their naming convention. The rest of the name stands for "Security Officer").
That user, QSECOFR, can set up on the system any way he likes. He can give access to individual users, or he can deny them. It can be different on a file-by-file basis. It's very much like the permissions system on a Unix-like machine, but it's actually even a bit more feature-rich even than the Unix way of doing things.
Anyway, the point is, your print files may be accessible to you (and other users) or may not be. It all depends on how the system was configured. For sure, it's possible for the QSECOFR account to change the permissions so you have access if you don't already.
But, this is all kind-of moot. The error about not enough columns allowed really has nothing to do with lp5250d. It's an error between the operating system and the program. lp5250d only supplies the network communications -- if the data isn't being spooled, then it's obviously not getting as far as sending over a network!
Personally, I prefer to configure Host Print Transform and use that with lp5250d.