Hello JieHao, Jeannette forwarded your email to the IRAF site support address,
iraf@noao.edu. The problem is that the IRAF SGI kernel has a maximum size
output buffer of 8.5 inches * 11.0 inches * 300 dots_per_inch. A higher
resolution device is simply not supported (for a full page plot). You will
need to modify graphcap, reducing the values of the reolution parameters as
if your device were only 300 dpi. Try this sgi_hplaserjet4 entry:sgi_hplaserjet4|HP LaserJet IV 600dpi laser printer:\
:kf=bin$x_sgikern.e:tn=sgikern:cw#.0125:ch#.0294:\
:ar#0.755
s#.2692:ys#.2032
r#2400:yr#3180:\
:XO#75:YO#75:XW#2400:YW#3180
X#2400
Y#3180:LO#1:LS#0: \
:BI:BF:MF#8:RO:NB#8:Let us know if you continue to have problems. We hope to have this
limitation removed in a future release of IRAF.Suzanne Jacoby