[comp.sys.ibm.pc.hardware] Printscreen Problems

RFM@psuvm.psu.edu (09/26/90)

I have an IBM Proprinter hooked up to an IBM PC via an AST SixPack Plus
card. Printer works fine under WordPerfect, Lotus, etc., designated
as LPT1. When I try to Shift-Printscreen, however, the thing goes crazy.
All it prints are blocky graphics characters across the paper. Does
anybody know what's wrong, what I can do to fix this?
Thanks in advance,
Bob M., PSU-Harrisburg