Epson WorkForce WF315
Troubleshooting. Motor and Sensor
Motors
The resistance values for the CR motor and the PF motor are given below, however, the values cannot be used to check the motors status since they are DC motor and the resistance between the electric poles varies. Visually check the motors for abnormal operation and if it is hard to judge, replace the motor.
Motor resistance and check point
Motor | Motor Type | Drive Voltage | Resistance |
---|---|---|---|
CR motor | DC motor with brush | DC 42 V ± 5 % | 22.7 Ω ± 10 %*1 28.8 Ω ± 10 %*2 |
PF motor | 21.2 Ω ± 10 % | ||
Scanner motor | 2-phase, 96-pole PM stepping motor | 43.0 Ω ± 10 %*5 38.0 Ω ± 10 %*6 |
|
ADF motor | 4-phase 96-pole PM stepping motor | 29.3 Ω ± 7 %(per phase at 20°C) *3*5 28.0 Ω ± 7 %(per phase at 25°C) *4*7 |
Note
*1 :WokForce 310/520 series only.
*2 :WokForce 320/325 series only.
*3 :WokForce 310/320 series only.
*4 :WokForce 520/325 series only.
*5 :Manufactured by Oki Electric Industry Co., Ltd
*6 :Manufactured by MITSUMI ELECTRIC CO., LTD.
*7 :Manufactured by NMB Mechatronics Co.,Ltd.
Sensors
Sensor check point
Sensor name | Check point | Signal level | Switch mode |
---|---|---|---|
PE Sensor | CN15/Pin 1 and 2 | Less than 0.4 V | Off: No paper |
More than 2.4 V | On: Detect the paper | ||
Cover Open Sensor* | CN16/Pin 1 and 2 | Less than 0.4 V | Off: Cover Close |
More than 2.4 V | On: Cover Open | ||
ADF PE Sensor | CN18/Pin 1 and 5 | Less than 0.4 V | Off: Document not passing |
More than 2.4 V | On: Document passing | ||
ADF DOC Sensor | CN18/Pin 1 and 3 | Less than 0.4 V | Off: Detect the document |
More than 2.4 V | On: No document |
Note * :WokForce 310/520 series only.