Troubleshooting The Motors And Sensors - Epson Stylus SCAN 2000 Service Manual

EPSON Stylus Scan 2000

3.6 Troubleshooting the Motors and Sensors

This section only covers motor and sensor checkpoints.
Table 3-15. Motor Resistance and Measurement Procedure (TBD)
Motor Name Location
CR Motor CN7 (MAIN board *)
PF (Pump) Motor CN8 (MAIN board *)
Table 3-16. Sensor Check (TBD)
Sensor Name Location
Paper End Sensor CN5/Pins 1 & 2
Carriage Home
CN4/ Pins 1 & 2
Position Sensor
ASF HP Sensor CN6/ Pins 1 & 2
Black Cartridge
CN9/Pins 1 & 19
Sensor
Color Cartridge
CN9/Pins 2 & 19
Sensor
Thermistor CN9/ Pins 2 & 19
Troubleshooting
Check Point Resistance
Pins 1 & 3,
±
7.8 Ohms 10%
Pins 2 & 4
Pins 1 & 3,
±
7.8 Ohms 10%
Pins 2 & 4
Signal Level Sensor Status
Close: more than 2.4V No paper
Close: more than 2.4V Out of home position
Close: more than 2.4V Out of home position
Black cartridge
Off: more than 2.4V
installed
Color cartridge
Off: more than 2.4V
installed
Change the VH
voltage of charge
Analog data
pulse for common
driver circuit
Troubleshooting the Motors and Sensors
Revision A
82