What it does
Run the engine without paper to hear a noise or watch a drive.
Do not free-run a machine with a standing fusing SC.
How to enter it
1. 5801#
Covers in a safe position. Start free run. Stop from SP — do not just yank the cord.
Nibbles move by serial. Raicoh is a field companion — if the screen is not what this card says, stop and open the FSM.