HP laserjet m712 トラブルシューティングガイド
2.
Use a small flat-blade screwdriver to activate the door sensor.
Figure 2-29
Tray 4 door open sensor
3.
Check the control-panel display for sensor response.
4.
If there is no response, replace the sensor.
Tray 5 paper sensor (PS3203)
1.
Remove Tray 5 from the HCI.
2.
In the tray cavity, press and hold the tray presence switch (callout 1), and then lift the paper
sensor lever (callout 2).
Figure 2-30
Tray 5 paper sensor
2
1
ENWW
Tools for troubleshooting
141