Check in this order:
- License: in Settings › Devices › Printers, the printer must have a license. Without a license, it does not receive jobs.
- Wizard: it must be open or installed as a system service on a computer on the same network.
- Printer status: check that it is not paused, out of labels or with the printhead open. The Wizard shows the status the printer reports.
- Pending jobs: in Printers › Queue, check whether there are stopped jobs or jobs with errors.