Denso BHT-1505B User Manual page 137

10.
Press the ENT key.
A 1-dot thick frame is displayed around the screen.
Press and hold the BS/C key to return to the previous screen.
Press and hold the BS/C key, or press the SF key and BS/C key
simultaneously to return to the TEST menu.
11.
Press the ENT key.
The buzzer sounds once, and the display returns to the TEST menu.
BARCODE Handy Terminal
125