Cause
Multi-purpose tray guide** has been closed.
What to Do
Open the operation panel, open the multi-purpose tray guide, and then insert the multi-purpose tray.
Then tap OK on the touch screen.
Do not open or close the multi-purpose tray guide while printing is in progress. Doing so may damage the printer.
Note
- To cancel printing, tap Stop on the touch screen.
**Tray Guide (A)is closed .. push down completely to open position.
TS9520 / TS9521C Support Page