I created a graph, but when tried to print it, nothing was printed. After some checking, I found that cupsys refused to convert the PostScript job (that the SQuirrel 2.5 submitted) to the printer's native format:
I [15/Apr/2007:13:44:17 +0300] Adding start banner page "none" to job 1293.
I [15/Apr/2007:13:44:17 +0300] Adding end banner page "none" to job 1293.
I [15/Apr/2007:13:44:17 +0300] Job 1293 queued on "Brother" by "arieh".
I [15/Apr/2007:13:44:17 +0300] Started filter /usr/lib/cups/filter/pstops (PID 20544) for job 1293.
I [15/Apr/2007:13:44:17 +0300] Started backend /usr/lib/cups/backend/socket (PID 20545) for job 1293.
E [15/Apr/2007:13:44:17 +0300] [Job 1293] No %%BoundingBox: comment in header!
E [15/Apr/2007:13:44:17 +0300] [Job 1293] No %%Pages: comment in header!
Then I printed the output to file. ps2pdf also reported "Unrecoverable error" during conversion.
gs-gpl (The GPL Ghostscript PostScript interpreter) was able to show the content of out.ps file properly.
Find the out.ps attached.
Printout of Graph module