Read Sharp AR-F12 (serv.man8) Service Manual online
8-11
CHAPTER 8 TROUBLESHOOTING
2.
Check of sensor operations 1
This is a mode 1 to check each sensor op-
eration separately.
1) Turn ON the power with pressing the con-
1) Turn ON the power with pressing the con-
trol panel mode key and start key. (The start
LED blinks in green.)
LED blinks in green.)
2) Press the mode key and set up the mode
LED2 to blink and mode LED1, 3, 4 to light
OFF, and press the start key. (The start LED
lights ON in green.)
OFF, and press the start key. (The start LED
lights ON in green.)
* With pressing the mode key for more than
1 sec., all the mode LEDs light OFF and
become able to be reset.
become able to be reset.
3) Check the ON/OFF status of each sensor
through the mode LED display.
* The display is switched whenever the start
key is pressed.
LED display
When the start switch is OFF:
When the start switch is OFF:
3.
Check of sensor operations 2
This is a mode 2 to check each sensor op-
eration separately.
1) Turn ON the power with pressing the con-
1) Turn ON the power with pressing the con-
trol panel mode key and start key. (The start
LED blinks in green.)
LED blinks in green.)
2) Press the mode key and set up the mode
LED1, 2 to blink and mode LED3, 4 to light
OFF, and press the start key. (The start LED
lights ON in green.)
OFF, and press the start key. (The start LED
lights ON in green.)
* With pressing the mode key for more than
1 sec., all the mode LED light OFF and
become able to be reset.
become able to be reset.
3) Check the ON/OFF status of each sensor
through the mode LED display.
* The display is switched whenever the start
key is pressed.
LED display
When the start switch is OFF:
When the start switch is OFF:
Mode LED
Display
Sensor status
LED1
Light OFF
Separation sensor OFF
Light ON
Separation sensor ON
LED2
Light OFF
Reverse path sensor OFF
Light ON
Reverse path sensor ON
LED3
Light OFF
Transport sensor OFF
Light ON
Transport sensor ON
LED4
Light OFF
DC 24V supplied
Light ON
DC 24V cut off
Mode LED
Display
Sensor status
LED1
Light OFF
Empty sensor OFF
Light ON
Empty sensor ON
LED2
Light OFF
Paper length sensor OFF
Light ON
Paper length sensor ON
Mode LED
Display
Sensor status
LED1
Light OFF
Joint sensor OFF
Light ON
Joint sensor ON
LED2
Light OFF
Tray open/close sensor OFF
Light ON
Tray open/close sensor ON
LED3
Light OFF
Transport cover 1 open/close
sensor OFF
Light ON
Transport cover 1 open/close
sensor ON
sensor ON
LED4
Light OFF
Transport cover 2 open/close
sensor OFF
Light ON
Transport cover 2 open/close
sensor ON
sensor ON
Mode LED
Display
Sensor status
LED1
Light OFF
Dip-switch 1 OFF
Light ON
Dip-switch 1 ON
LED2
Light OFF
Dip-switch 2 OFF
Light ON
Dip-switch 2 ON
LED3
Light OFF
Dip-switch 3 OFF
Light ON
Dip-switch 3 ON
LED4
Light OFF
Dip-switch 4 OFF
Light ON
Dip-switch 4 ON
Table 8-107
When the start switch is ON:
Table 8-109
When the start switch is ON:
Table 8-110
Table 8-108
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