A SERVICE OF

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I Cartridge-door open switch
Test the cartridge-door open switch (SW501)
1. Open the cartridge door to activate the sensor.
Figure 3-11 Test the cartridge-door open 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.
148 Chapter 3 Solve problems ENWW