Network Postscript

[Helge Blischke]

Andrew wrote:
> 
> I am currently in the process of configuring some pc's to replace some
> old WYSE terminals. I need to organise a single key press which will
> print a screenshot of the screen to a network printer(HP Laserjet 1100).
> 
> To print the screenshot I have tried
> 
> xwd -display localhost:0 -root | xwdtopnm | pnmtops | lpr
> 
> and
> 
> xwd -display localhost:0 -root | xwdtopnm | pnmtops > /home/tmp/tmp.ps
> gs -dBATCH -sOutputFile=\|lpr /home/tmp/tmp.ps
> #in this case the above creates the proper postscript file, and
> #the print job gets sent to the server where page_log also shows
> #the job, however still nothing comes out of the printer.
> 
> This will print if done from the print server, but not over the
> network.
> 
> Cups error log on the server shows that the job is being sent to the
> printer, however nothing gets printed.
> /var/log/cups/error_log
> 
> AcceptClient() 7 from 192.x.x.x:631.
> ReadClient() 7 POST /printers/HPLaserJet1100 HTTP/1.1
> ProcessIPPRequest: 7 status_code=1
> ReadClient() 7 POST /printers/HPLaserJet1100 HTTP/1.1
> print_job: request file type is application/postscript.
> CancelJob: id = 1918
> check_quotas: requesting-user-name = 'remroot'
> print_job: requesting-user-name = 'remroot'
> Adding start banner page "none" to job 2416.
> Adding end banner page "none" to job 2416.
> Job 2416 queued on 'HPLaserJet1100' by 'remroot'.
> Job 2416 hold_until = 0
> StartJob(2416, 0x8307890)
> 
> [Job 2416] Printer: HPLaserJet1100
> [Job 2416] PPD file: /etc/cups/ppd/HPLaserJet1100.ppd
> [Job 2416] Printer model: HP LaserJet 1100 Foomatic/hpijs
> (recommended)
> 
> blah blah blah(searching for header options)
> 
> [Job 2416] Renderer process finished
> [Job 2416]
> [Job 2416] Closing foomatic-rip.
> UpdateJob: job 2416, file 0 is complete.
> CancelJob: id = 2416
> StopJob: id = 2416, force = 0
> StopJob: printer state is 3
> 
> The network printing works fine if
> a) text file is sent
> b) ksnapshot or other program sends a postscript file
> 
> It appears only to be a problem with postscript sent over the network
> from a command line/shell script.
> 
> I have also tried the following
> 
> xwd -display localhost:0 -root | xwdtopnm | pnmtops > /home/tmp/tmp.ps
> gs -dBATCH -sOutputFile=\|lpr /home/tmp/tmp.ps
> #in this case the above creates the proper postscript file, and
> #the print job gets sent to the server where page_log also shows
> #the job, however still nothing comes out of the printer.
> 
> Can anyone see what I am missing, or is there some bug/feature I am
> unaware of.
> 
> Lost and confused
> 
> Andrew

Post (URLs to) sample files procuced by the respective components. I
suspect
the created PS file is empty (my pnmtops e.g. complained about the color
depth 
specification in the pnm file (65535 in this case)).

Helge

-- 
Helge Blischke
Softwareentwicklung
SRZ Berlin | Firmengruppe besscom
http://www.srz.de
tel: +49 30 75301-360