HP laserjet m712 Guide De Dépannage
Top (top-of-page) sensor (SR9)
1.
Open the cartridge door, and then remove the toner cartridge.
2.
Raise the registration shutter.
3.
Use a small screwdriver to activate the top sensor.
Figure 2-4
Test the top sensor
4.
Check the control-panel display for sensor response.
5.
If there is no response, replace the sensor.
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Chapter 2 Solve problems
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