9-20 Key Operator Mode
Key Operator Mode
Panel Contrast / Key Sound Adjustment [7]
Use this feature to adjust the level of brightness of the touch screen portion of the control
panel, and also the volume of the touch key.
Key Operator Mode Screen Panel Contrast/Key Sound Adjustment Screen
1 Press [HELP] to display the Help Screen, then touch Key Operator Mode.
Enter the 4-digit Key Operator password, then touch OK to display the Key Operator
Mode Screen. (See note 1.)
2Touch [7] Panel contrast/Key sound adj. to display the Panel Contrast/Key Sound
Adjustment Screen.
3 Adjust the Panel contrast, Backlight contrast, or Buzzer volume, as desired.
Touch Dimmer to make the panel or backlight contrast dimmer than currently displayed,
or touch Brighter to make the panel or backlight contrast brighter than currently
displayed.
Touch Small or Big to regulate the buzzer volume of the touch keys.
4Touch OK to complete the setting and return to the Key Operator Mode Screen.
5Touch RETURN to return to the Basic Screen and perform printing operations.
NOTES: 1If an invalid password is entered, enter the valid 4-digit password.
2The control panel contrast feature can be adjusted from the Help screen, provided the feature setting
is activated by your service representative. When the Control panel contrast key is pressed, the Con-
trast Adjustment Screen will be displayed. Contact your service representative if the feature is
required.
