(First ones give better quality
try to use
(a) any Lasejet 5 or older will print (worst - to default tray)
(b) get PPD file from Kyocera - it may be contained with their Win or MAC drivers and attach it to your generic postscript driver) - or to default tray without PPD
(c) rest are pin impact or even worse (and not of great speed - as they print BIG SQARES instead of pin impacts)
From PDF with FS9000 Tech specs:
Standard Emulation:
HP LaserJet 5M (PCL 6),
KPDL2 (PostScript Level 2),
IBM Proprinter X24E,
Epson LQ-850,
Diablo 630,
Line printer