Toshiba SL-5300 Series - Manual (Page 169)

16. REGISTRATION MODE EO1-31009
16.2 Basic Operations
16-23
2. Place a commodity on the platter.
3. A label is issued (AUTO) or touch the [PRT/*] key (MANUAL).
4. If you desire to change the preset %tare, touch the [%TARE] key.
5. Input a new %tare and touch the [%TARE] key.
Example: 10%
%TARE key
TARE area
%TARE key