Device type &1 not defined.

What causes this issue?

The printer type specified does not exist.

System Response

The system displays an error message.

How to fix this error?

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

Procedure for System Administrators

Specify a printer type defined in the SAP spool administration.

Error message extract from SAP system. Copyright SAP SE.