Hi.
To enter training mode:
Turn key to X mode.
Press the CHRG button.
Turn the key back to REG (R) mode.
You can now start training. If you are in training mode, it will be printed on all receipts.
Training mode allows you to perform transactions without it affecting the daily totals.
To exit training mode, just do the same procedure as you did to enter it.
Let me know if you have problems.
Mark, October 2008