I'm using a model with an SD card. Can I record to the SD card without printing to chart paper?

Yes. Start recording to the SD card using the following method.

1. Press the FUNC key.
2. Use the ▽△ keys to display Data_Save and press Enter.
3. With Start displayed, press Enter.

* The LED to the left of the SD card slot blinks green when the SD card is in use (saving, playback, etc.).