Epson WorkForce 600 - Troubleshooting; Motor and Sensor Troubleshooting

EPSON WorkForce 600/EPSON Stylus OFFICE TX600FW/BX600FW/EPSON Stylus SX600FW/ME OFFICE 700FW Revision A
TROUBLESHOOTING Troubleshooting 47
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3.2 Troubleshooting
3.2.1 Motor and Sensor Troubleshooting
 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.
Note *1: Manufactured by MITSUMI ELECTRIC CO., LTD.
*2 : Manufactured by Oki Electric Industry Co., Ltd
 Sensors
Table 3-1. Motor resistance and check point
Motor Motor Type Drive Voltage Resistance
CR motor
DC motor with
brush
DC 42 V ± 5%
28.8 Ω ± 10 %
PF motor 21.2 Ω ± 10 %
Scanner motor
2-phase, 96-pole
PM stepping motor
38.0 Ω ± 10%
*1
or
43.0 Ω ± 10%
*2
ADF motor
4-phase, 96-pole
PM stepping motor
28.0 Ω ± 7 %
Table 3-2. Sensor check point
Sensor name Check point Signal level Switch mode
PE Sensor CN7/Pin 1 and 2
Less than 0.4 V Off: No paper
More than 2.4 V On: Detect the paper
Cover Open
Sensor
CN8/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 2 and 5
Less than 0.4 V Off: Document passing
More than 2.4 V On: Document not 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