Tray 3 door opening/closing sensor (SW1)
1. Open and then close the paper-feeder door to activate the sensor. The tab on the door (callout 1)
activates the senor (callout 2).
Figure 3-22 Test the Tray 3 door opening/closing sensor
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2. Check the control-panel display for sensor response.
3. If no response, replace the button switch.
310 Chapter 3 Solve problems ENWW