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ManualsBrandsEpson ManualsComputer equipmentLX-300II - LX-300+ II Impact Printer
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EPSON LX-300+ Revision A
Troubleshooting Troubleshooting 62
3.2.4.2 Motor Check
By measuring the direct current resistance of the motor coil, you can check if
the motor is all right.
3.2.4.3 Sensor Check
When the sensor is connected mechanically, you can check the sensor by its
conductivity.
Table 3-11. Motor Check
Item Operation Specification
CR motor
1. Set the multimeter to the resistance measuring
range.
2. Connect the one side of the probe to 1 or 2 pin.
3. Connect the other side of the probe to 3 or 4 pin.
5.7
Ω
±10%
(at 25°C/phase)
PF motor
1. Set the multimeter to the resistance measuring
range.
2. Connect the one side of the probe to 1 or 2 pin.
3. Connect the other side of the probe to 3 or 4 pin.
16.0
Ω
±10%
(at 25°C/phase)
CS motor
(option)
1. Disassemble the CS unit.
2. Set the multimeter to the resistance measuring
range.
3. Connect the one side of the probe to brown
[TBD] harness.
4. Connect the other side of the probe to other 4
harness.
150
Ω
± 5%
(at 25°C/phase)
Table 3-12. Sensor Check
Item Operation Specification
HP detector
1. Set the multimeter to the
resistance measuring range.
2. Connect the one side of the probe
to CN3 1 pin.
3. Connect the other side of the
probe to CN3 2 pin.
When switching the
sensor actuator, it
should be switched
ON/OFF.
RPE detector
1. Set the multimeter to the
resistance measuring range.
2. Connect the one side of the probe
to CN4 1 pin.
3. Connect the other side of the
probe to CN4 2 pin.
When switching the
sensor actuator, it
should be switched
ON/OFF.
Release detector
1. Set the multimeter to the
resistance measuring range.
2. Connect the one side of the probe
to CN5 1 pin.
3. Connect the other side of the
probe to CN5 2 pin.
When switching the
sensor actuator, it
should be switched
ON/OFF.
BPE detector
1. Set the multimeter to the
resistance measuring range.
2. Connect the one side of the probe
to CN6 1 pin.
3. Connect the other side of the
probe to CN6 2 pin.
When switching the
sensor actuator, it
should be switched
ON/OFF.
PG detector
1. Set the multimeter to the
resistance measuring range.
2. Connect the one side of the probe
to CN3 7 pin.
3. Connect the other side of the
probe to CN3 7 pin.
When switching the
sensor actuator, it
should be switched
ON/OFF.