What file type does the AS400 support? Spool files native the iSeries are SCS, AFPDS, IPDS, LINE, and USERASCII. SCS are the standard text documents and there is a constant battle trying to receive SCS documents on the Windows side of the network.
Preserving the SCS formatting coming off the iSeries is a concern for many [...]

The primary benefit to moving SCS rendering off the host computer is reduced CPU time. AS/400 and RPM Remote Print Manager users have reported print times reduced from minutes to seconds, though results will vary depending on the host utilization.
The secondary benefits include:

The ability to capture to disk using an RPM filter queue
Support for country-specific [...]