5-8
Confidential
1.3.4 Check LCD operation (Function code 12)
<Function>
This function is used to check that the LCD on the control panel is operating normally.
<Operating Procedure>
(1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE
12” on the LCD, and press the [OK].
(2) Each press of the [Go] cycles through the displays as shown in the figure below.
(3) When you press and hold the [Go] for five seconds, the machine returns to the initial
state of maintenance mode, regardless of the display status.
Fig. 5-2
Display 5
Display 4
Displays all dots
Displays 16 frames in a line
Displays no dots
Displays Lattice
Display 1 Displays “
ɥ”
Display 2
Display 3
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