This error happens to both my Lulzbot Taz 6 and Lulzbot Mini 1. Any time a job is manually canceled through the 3dprinteros interface, attempting to start a subsequent job will show the following error,
> Printer error: 260 : Error: already printing - unable to start a new print
The only way around it that I’ve been able to find is to reboot the Raspberry Pi that’s connected to the printer. Rebooting the printer itself has no effect. This has been a consistent error for over a year, across many versions of 3Dprinteros, on various different Raspberry Pi’s, but currently a RPi 3 running 3dprinteros 7.3.15. The Taz6 is running Marlin 126.96.36.199.
Has anyone else seen this and are there any workarounds besides rebooting the Pi?