CUPS error "Send-Document: server-error-internal-error " in RHEL

Issue

• Printer getting disconnected automatically. We have enabled it now. Want to know the reason for the automatic disconnection.

• Error in the CUPS error_log:

  D [17/Oct/2017:13:40:06 -0400] [Job 215] Send-Document: server-error-internal-error (Resource temporarily unavailable)
  E [17/Oct/2017:13:40:06 -0400] [Job 215] Unable to add document to print job.
  

• A print queue is getting disbled. The output of lpstat contains:

  printer lp123 disabled since Wed 15 Feb 2023 03:37:32 PM EST -
           Unable to add document to print job.
  

  and the error_log contains:

  D [20/Feb/2023:14:09:04 -0500] [Job 1403] Send-Document: server-error-internal-error (Success)
  E [20/Feb/2023:14:09:04 -0500] [Job 1403] Unable to add document to print job.