Check Lcd Operation (Function Code 12) - Ricoh SP 230DNw Service Manual

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.
Display 1 Displays " ɥ "
Displays all dots
Display 2
Display 3 Displays 16 frames in a line
Display 4
Displays Lattice
Display 5
Displays no dots
Fig. 5-2
5-8
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