[cups] Issue adding a Raw printer

[Helge Blischke]

> Am 09.09.2019 um 21:46 schrieb Subodh Vaidya <vaidya_subodh at hotmail.com>:
> 
> I am using Cups version 2.2.8 in which the Parallel backend is no longer available.
> I have a device that has a parallel port printer. I am trying to set it up in a raw mode so that I can send a formatted file to the printer
> The following are the steps I followed:
> 
> 1. Kill the cupsd daemon
> 2. Edit /etc/cups/cups-files.conf
> 3. Set FILEDEVICE Yes
> 4. Save changes & Reboot the system
> 5. lpadmin -p Parallel1 -D "Internal Printer" -m raw -v file:/dev/lp1
> 6. cupsaccept Parallel1
> 7. cupsenable Parallel1
> 8. lp -d Parallel1 -o raw file_name
>    request id is Parallel1-1 (1 file(s))
> 
> 9. lp -d Parallel1 -o raw file_name
>    request id is Parallel1-2 (1 file(s))
> 
> The response to the 'lp' command indicates that the request has been queues, but nothing is actually printed.
> If I do a  'cat file_name > /dev/lp1' the file is printed correctly.
> 
> Any help is resolving this issue is greatly appreciated.
> Thank you in advance
> SV
> 
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execute 
cupsctl —debug-logging
then execute the print command as usual
then execute 
grep 'Job xxx‘ /var/log/cups/error_log > /tmp/temp.txt
where xxx is the job ID displayed by the print command (e.g. the "2“ in "Parallel1-2“)
snf post the temp.txt file.

Helge