5-15
Confidential
1.3.7 Operational check of control panel key (Function code 13)
<Function>
This function is used to check that the keys on the control panel operate normally.
<Operating procedure>
(1) Press the 1 and 3 keys in this order in the initial state of the maintenance mode. “00” is
displayed on the LCD.
(2) Press the keys in the order designated in the figure shown below.
The LCD shows the corresponding number in decimal notation each time a key is
pressed.
Check that the displayed number is correct by referring to the figure below. If the keys are
pressed in the incorrect order, the machine displays the “INVALID OPERATE” on the
LCD. Press the X key, and then press the correct keys.
(3) After the last number key is pressed, the machine returns to the initial state of the
maintenance mode. To cancel this operation and return the machine to the initial state of
the maintenance mode during the above procedure, press the X key.
■ Order to press keys
- Common to all the models
Fig. 5-5
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