I'm answering my own query from Saturday 20 March 1999, in case someone else has the same problem (Epson Stylus Color 400 failed after Hamm -> Slink upgrade).
The problem was the filter /etc/magicfilterstylus_color_720dpi-filter, from magicfilter version 1.2-28. It's good for Ghostscript version 3.33, and possibly 4.03, but not 5.50 which I am running. I replaced the PostScript section of the filter by 0 %! filter /usr/bin/gs @stc.upp -sOutputFile=\|"cat 1>&3" - 3>&1 1>&2 -c quit 0 \004%! filter /usr/bin/gs @stc.upp -sOutputFile=\|"cat 1>&3" - 3>&1 1>&2 -c quit # PDF 0 %PDF fpipe /usr/bin/gs @stc.upp -sOutputFile=\|"cat 1>&3" $FILE 3>&1 1>&2 -c quit using options that I found in a sample gs command at http://eunuchs.org/epson/index.html.. With this change, the filter prints PostScript (formerly, it produced infinite page ejects). There is still a flaw in the printing of text by the final default entry: there is no page eject at the end. It's clear how to write a script using cat to take care of this, but there should be a more elegant solution. Mike O'Donnell
