Trouble with IPDS: Load Type1 Font

[hhahn]

I have some trouble with IPDS.
I want to upload a Type1 font via IPDS to a printer (IBM Infoprint
1422). But the printer crashes on writing text (SIGSEGV illegal access
...)

Following commands are sent to the printer:
- Load Code Page Contol (LCPC)
- Load Code Page (LCP)
- Load Font Character Set Control (LFCSC)
- Load Font (LF) (with PFB-File as object data)
- Activate Resource (AR)
- Load Font Equivalence (LFE)

All commands are acknowledged successful. The font seems to be
activated correct,
Request Resource List (RRL) for the font returns a size > 0.

But writing text (BP, WT, EP) fails. The printer crashes with SIGSEGV

Anybody there who knows what I did wrong?