User Guide

Duplex switchback sensor (SR1)
1. Remove the duplexer from the product.
2. Insert a sheet of paper in the duplexer until the sheet covers the sensor.
Figure 2-7 Duplex switchback sensor
3. Reinstall the duplexer, and then check the control-panel display for sensor response.
4. If there is no response, replace the duplexer.
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Tools for troubleshooting
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