HP laserjet m712 문제 해결 가이드
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Cartridge door switch (SW3)
1.
Open the cartridge door to activate the sensor.
Figure 2-2
Test the cartridge door switch
2.
Check the control-panel display for sensor response.
3.
If there is no response, make sure that the sensor-actuator tab on the door is not damaged or
missing.
If necessary, replace the cartridge-door switch.
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Chapter 2 Solve problems
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