Printer issues - Samsung on Linux 18.04
 

I have uninstalled everything shut things off and back on and still have issued. Last time I tried to print the cups error log had - Backend returned status 113 (unknown)
I have probably spent 16 hours trying to get this to work. It did work fine until an automatic update of linux. Printer worked before automatic update linux-modules-4.15.0-52-generic:amd64 (4.15.0-52.56, automatic),

Welcome to LinuxQuestions.org. CUPS printing issues can take a bit of debugging to nail down sometimes. Put CUPS into debug mode (for more verbose logging) with
then try sending a print job. You could print a test page via the CUPS web interface (using your favourite browser) for example. To do that, navigate to

localhost:631/printers

select the printer > Maintenance > Print Test Page

Examine the CUPS error log (/var/log/cups/error_log) for errors. It's a lengthy file, so use the time stamps and/or job ID to observe/capture the most recent print job, and you're looking for backend or filter related errors. If necessary copy/paste output to https://pastebin.com/ and post the link that it generates here so that we can advise further.

Tip: If the file is too long, consider removing it before printing, so that the entire output concerns the most recent print job

I updated to cups-2.3rc1-source.tar.gz and it works!

Also, may be tell us a bit about your current printer configuration eg

Thanks for the update. Nice when it is simple! :)

Still not working
 

The update to cups worked for one page. Since then no printing. I set cups back and now I get Unsupported format "application/postscrip when I try to print a test page.

Please show the output of the requested information in post #4. If you're using a postscript driver then make sure that /usr/share/cups/mime/mime.convs is present (usually supplied as part of the cups package). It contains an entry
AFAIU, check pstops (eg /usr/lib/cups/filter/pstops) is present on your system perhaps.


You should probably disclose the distro you're using (although from your mention of "18.04" I assume that you're using Ubuntu).

response re Samsung on ubuntu
 

https://pastebin.com/jb5Fub6m
I checked mime.convs and pstops
and yes Ubuntu 18.04.2 LTS
cups 2.2.7

We need to examine the filter chain as logged by CUPS in /var/log/cups/error_log when attempting to process a print job for a given printer. It's not clear to me why the postscript filter (application/postscript) would be involved in any way for your Samsung printer.

Check out and report back with output from

Some general debugging info for CUPS...

CUPS can put into debugging mode with
This results in more verbose logging output that can help with problems like this.

The error_log can be quite lengthy, containing history from previous print jobs. Sometimes it is useful to remove it prior to sending a new print job when trying to identify a particular issue. Then one knows that the log contains only information relating to the current print job. To remove it do

Cancel any stale/stuck print jobs with
and attempt to print again, then examine /var/log/cups/error_log for any errors.

error_log
 

Did all of the above https://pastebin.com/iC8HZjDH
If I try to print a document it says cannot start printer please check your printer configuration

better paste bin
 

error log after trying to print a document
https://pastebin.com/AP87NFh6

Do you have the cups-filters package installed? If not, install it. Actually, now that I come to think of it, this package should be reinstalled after a cups upgrade.

As Hazel mentions it's clear from the filter errors reported in /var/log/cups/error_log that the 'cups-filters' package is not present. Install that package and report back.

It must surely have been there before as this is apparently a new problem. My belief is that this is some kind of version mismatch. The filters are not being found.