Frontend printing not possible from background processing.

What causes this issue?

A command to print immediately was sent to a frontend printer during
background processing. This command was not successful as there is no
frontend connection during background processing.

System Response

Request reset.

How to fix this error?

Call Transaction SP01 and "Restart frontend printing" to transfer all
frontend print jobs not yet printed to this terminal. If you receive
the message "Frontend printing currently processing", try "Restart
frontend printing" again a little while later.
If you want to use print immediately during background processing,
choose another printer instead of a frontend printer.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.