If you send a print job with the laser off, then the job will stay stuck in the print spooler. It will not auto-send once the laser is turned on. All successive print jobs will queue up behind the stopped job and nothing will happen. Rebooting the PC will NOT clear this. Telling the job to Resume/Resend or whatever didn’t help in Windows 7 and I don’t expect it to help in Windows 10.
You can open the print queue and delete all the pending jobs. At best, this may take an unexpectedly long time- perhaps minutes. In some cases, it doesn’t seem cases, they seem to stick around in the “deleting…” state indefinitely.
In that case you need to stop and restart the print spooler. Just google “restart print spooler Windows 10” and grab something like this: https://www.epson.eu/viewcon/corporatesite/kb/index/1918
the print spooler will then work as long as Red is powered up