Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bionet!ig!ames!pacbell!att!homxb!mtuxo!att!alberta!calgary!spycal!sdscal!keith
From: keith@sdscal.UUCP (Keith Jones)
Newsgroups: comp.lang.postscript
Subject: Re: Setting emulation mode through software on a nec LC-890
Summary: SilentWriter LC 890, to postscript and back (to HP Laserjet)
Message-ID: <191@sdscal.UUCP>
Date: 21 Apr 89 17:50:36 GMT
References: <1240@cmtl01.UUCP>
Organization: Stream Data Systems, Calgary, Alberta
Lines: 49

In article <1240@cmtl01.UUCP>, mdorion@cmtl01.UUCP (Mario Dorion) writes:
> 
> ...
> Is there a way from HP or Diablo emulation mode to 'escape' into postscript so
> that I can change the mode back???
> 
> -- 
>      Mario Dorion          | E-mail: xios!mario@cmtl01.UUCP
>      XIOS Systems          |         ...uunet!attcan!cmtl01!xios!mario
>      Montreal, Canada      |
>      1 (514) 744-3410      |"All the young dudes carry the news ..." - Bowie

We also have an NEC LC 890 laser printer.  We are running Unix System V and
have the printer connected through the lp scheduler.  The interface file
that we have is designed to run jobs to the laserjet emulation (which is our
default setting).  Sending the option '-opostscript' to 'lp', we set it up
into postscript mode and can then dump postscript programs to the printer.

Here is the stuff that you will find relevant (I hope):

To run a postscript batch job (starting in HP Laserjet emulation):

	echo "\033\0177\c"
	echo "0end"
	echo "Wait 2"
	echo "\004\c"
	sleep 10
	echo "statusdict begin"
	echo "5 setsoftwareiomode"
	echo "end"

	... send postscript file to the printer ...

	echo "\004\c"

The first bit takes the (pseudo-) HP Laserjet printer into postscript mode,
signals end-of-job, and then it sets the job back to HP Laserjet mode.  As
documented in the manual, this change doesn't take place until the end of
the current job.

There are some problems with this in that HP Laserjet jobs and Postscript
jobs cannot be intermixed well without occasionally leaving the printer in
postscript batch mode.

Keith Jones		Stream Data Systems
			Calgary, Alberta, Canada
			1 (403) 233-0690

I have no .signature because my pen keeps scratching up my monitor.