🚀 go-pugleaf

UMAB-BIOPHYS writes:

   I recently acquired a HP C2089A Postscript Cartridge which I am
   using with a HPLasterJet III printer.  I also use a PacificPage
   Postscript Cartridge with HPLazerJet IIID printer.  [...]

   Can someone please post germane details or perhaps send me a model
   interface routine for a unix environment containing an example
   of how the software switching is done.

This works on our small Sun network, running Sunos 4.1.1, with an
HPIIp and a PacificPage Postscript cartridge.  The code detects
whether the file is Postscript or HP native-mode, and shifts the
printer state.  Don't forget to create the STATEFILE before running
the filter.

----------------------------[lpIIp.c]---------------------------
/* 
 * lpIIp.c
 * lpr (BSD or SunOS) "if" filter for lpIIp with Postscript cartridge
 * Reads opening characters of file, checks STATEFILE, and issues
 * sequence to shift to hp or postscript mode as needed.
 *
 * Use in /etc/printcap entry:
 * lp|printer|oga-printer:\
 *      :lp=/dev/ttya:br#19200:ms=-parity:sh:mx#2000:\
 *      :if=/usr/local/bin/lpIIp:lf=/usr/adm/lpd-errs:
 *
 * ron@mlfarm.com, 26 Jun 1991
 */

#include <stdio.h>
#define STATEFILE "/var/spool/lpd/STATEFILE"
#define HPTOPS	  "\033E\033&l5257.1058J" 
#define PSTOHP	  "\033&l1057.32259J"
#define HPTIMEOUT 30
#define HPRESET	  "\033E\033&k2G\033&l0l6d0E" /* reset, line-endings, */
					      /* portrait mode, 6 */
					      /* lines/inch, no top margin */
main()
{
  char  id[3], *mode, state[12];
  FILE  *sf;
  int   i, c, status = 0;

  for (i=0; i <=2; i++)
    id[i] = getchar();
  if (!strncmp(id, "%!", 2)) 
    mode = "postscript";
  else mode = "hp";
  if (!(sf = fopen(STATEFILE, "r")))
    strcpy(state, "unknown");
  else fgets(state, sizeof(state), sf);
  (void) fclose(sf);
  if (strncmp(state, mode, strlen(mode)))  
    {
      if (!strcmp(mode, "hp"))
	{
	  sleep(HPTIMEOUT);
	  fputs(PSTOHP, stdout);
	}
      else fputs(HPTOPS, stdout);
      fflush(stdout);
      if (!(sf = fopen(STATEFILE, "w")))
	perror(STATEFILE);
      else 
	{
	  fputs(mode, sf);
	  fputs("\n", sf);
	  (void) fclose(sf);
	}
      sleep(60);
      if (!strcmp(mode, "hp"))
        fputs(HPRESET, stdout);
   }
  for (i=0; i <=2; i++)
    putchar(id[i]);
  while ((c = getchar()) != EOF)
    putchar(c);
  if (!strcmp(mode, "hp"))
    fputs("\033E", stdout);
  else fputs("\04", stdout);
  exit(0);
}
------------------------------[eof]-----------------------------
-- 

				Ronald Florence
				ron@mlfarm.com