Re: Issue with PCL3GUI output

I think that sending binary data to networked HP printers is more complicated than netcat because some control characters need to be escaped. Try installing hplip or printing through CUPS.


https://support.hp.com/my-en/document/buu00659


http://hplipopensource.com/hplip-web/index.html

<http://hplipopensource.com/hplip-web/index.html>
Regards, William



________________________________
From: gs-devel <[email protected]> on behalf of Paul Goyette <[email protected]>
Sent: Saturday, July 22, 2017 6:32 AM
To: [email protected]
Subject: [gs-devel] Issue with PCL3GUI output

Hopefully this hasn't been asked before - I looked and didn't see it...


I'm new to ghostscript, so I might be doing things totally wrong.  But
I've got a "HP DeskJet Ink Advantage 2545" printer to which I am
connected via WiFi network.  HP is apparently notorious for not making
detailed specs available, but as far as I can tell this printer only
talks "PCL3GUI2".  I looked at the .ppd file available from HP for
"DeskJet_2540_Series" and it seems to confirm, with a line that says

         *hpPrinterLanguage: "pcl3gui2"

As a simple test, I tried to print some plain text using the following
shell script, using enscript to provide post-script input corresponding
to the plain-text:

#! /bin/sh

echo "This is a test." | \
enscript -Bh -q -p- | \
/usr/pkg/bin/gs -q -dSAFER -dNOPAUSE -r300 -sDEVICE=pcl3 -sSubdevice=unspec \
         -sPJLLanguage=PCL3GUI2 -sOutputFile=- -sPAPERSIZE=letter \
         -sColourModel=CMYK -dBlackLevels=4 -dCMYLevels=4 \
         -sPrintQuality=presentation -sMedium=plain -

The ghostscript command was suggested by a friend who uses ghostscript
(but has some unrelated flavor of printer).

The output of the shell script appears reasonable (although I certainly
didn't decode the embedded 2.5K graphic!).  Yet when the output is sent
to the printer (via netcat, for example), nothing gets printed.  The
paper feeds, stalls for a brief moment, and then ejects, but no ink gets
put to paper.  (I'm connecting to the printer via "raw" port 9100, so
there's no feedback nor any sort of diagnostic or error message from the
printer.)

I feel certain that there's something wrong with my script, but I really
haven't a clue where to go from here.  I have tried removing the last
two lines of the arguments, and I've tried PJLLanguage=PCL3GUI (without
the trailing 2), but neither of these changes makes any difference.

Does anyone out there have a "magic incantation" for this HP DJ-2545
printer?

Thanks in advance for any help you might offer.



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