Sharp AR-810 Manual de servicio descargar pdf (Pagina 262)

AR-651/810 RADF (DOCUMENT FEEDER) 16 - 37

16. 7. Errors

Errors can be divided into the sensor adjustment error, EEPROM error and tray lift motor error.

(1) Sensor adjustment error

There are 4 kinds of sensor adjustment errors:

1) Original length sensor adjustment error

2) Read sensor adjustment error

3) Large original exit sensor adjustment error

4) Small original reverse sensor adjustment error

The D/A output voltage is adjusted so that the A/D input voltage for each sensor is kept within the

range between 3.16V~3.55V while carrying out the EEPROM initialization and all-sensor adjustment

at the adjustment mode. At this time, the sensor adjustment error occurs when the D/A output

voltage cannot be adjusted within the range between 0.04V~2.90V.

(2) EEPROM error

The EEPROM error occurs when the initialization value cannot be written on the EEPROM while

carrying out the EEPROM initialization and all-sensor adjustment at the adjustment mode or when

data cannot be read out from the EEPROM after turning ON the power.

(3) Tray lift motor error

The tray lift motor error occurs when a feeding jam because of which the upper limit/lower limit

cannot be detected within a specified time while lifting/lowering the tray takes place 3 times

continuously.

1 2 ... 257 258 259 260 261 262 263 264 265 266 267 ... 341 342

Sin comentarios

Sharp AR-810 Manual de servicio Pagina 262