GPP Series User Manual
90
Backlight
brightness
adjustment
In the System menu, press the F3 (Setting)
button followed by selecting the F2 (Backlight)
to adjust backlight brightness. There are three
brightness levels: High, Middle, and Low. Select
from pressing the F1 (Low) or F2 (Middle) or F3
(High) button.
In the System menu, press the F3 (Setting)
button followed by selecting the F3 (Beeper) to
turn on or turn off the buzzer beeper.
In the System menu, press the F3 (Setting)
button followed by selecting the F4 (Upgrade)
button to upgrade the machine to the latest
software version. For more details, refer to page
91.
In the System menu, press the F3 (Setting)
button followed by selecting F5 (Hardcopy) to
proceed to screenshot operation. For more
details, refer to page 92.
Restore to
Factory Settings
In the System menu, press the F5 (Preset) button
to restore to the factory default setting. For more
details, refer to page 86.
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