All 3 color toner cartridges suddenly report as missing.
Product Name: Phaser 6700
Operating System: macOS 11 - Big Sur
All are about 1/2 full and had been working without a problem since installed about 6 months ago. I have re-booted, unplugged for a time to clear memory, tried firmware updates, re-installed the cartridges, etc. without any change. I assume it is software or sensor/board related but am looking for insight on what to try next. Thanks!