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12.2 Prohibited Simultaneous Opera-
tion of the Beeper*, Illumination
LED (Laser Source**), and LCD
Backlight
(* Beeper and vibrator in the BHT-6500/BHT-7000/BHT-7500)
(** Laser source in the BHT-6500/BHT-7500)
■ BHT-3000
The BHT-3000 is so designed that the beeper, illumination LED, and LCD backlight will not
work simultaneously to save power consumption at peak load. There are priority orders
among them; that is, the beeper has the highest priority, the illumination LED has the next
priority, and the LCD backlight has the lowest priority. To beep the beeper when the LCD
backlight is on, for example, the BHT-3000 turns off the LCD backlight once and then
beeps.
■
BHT-5000
The BHT-5000 is so designed that the beeper and illumination LED will not work simulta-
neously to save power consumption at peak load. There is a priority order between them;
that is, the beeper has the priority over the illumination LED. To beep the beeper at the
time of bar code scanning, for example, the BHT-5000 turns off the illumination LED when
beeping.
■
BHT-6000
The BHT-6000 is so designed that the illumination LED and the LCD backlight will not work
simultaneously to save power consumption at peak load. There is a priority order between
them; that is, the illumination LED has the priority over the LCD backlight.
■
BHT-6500/BHT-7000/BHT-7500
The BHT-6500/BHT-7000/BHT-7500 is so designed that the beeper (and vibrator), illumina-
tion LED (laser source in the BHT-6500/BHT-7500), and LCD backlight will not work simul-
taneously to save power consumption at peak load. There are priority orders among them;
that is, the beeper (and vibrator) has the highest priority, the illumination LED (laser source)
has the next priority, and the LCD backlight has the lowest priority.
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