Removal and Replacement
Bottom Assemblies
PSI Input Paper Sensor Arm
The PSI Input Paper Sensor Arm is located under the Feeder
Guide Assembly and High Voltage Shield.
1.
2.
3.
Remove the Printer Cover, the Fusing Assembly (Figure 6-27),
the Formatter Shield and PCA (Figure 6-13), the Power Switch
Assembly (LaserJet 4P/4MP only- Figure 6-23), the
DC
Controller Assembly (Figure 6-36), and the Feeder Guide
Assembly (Figure 6-44).
LaserJet 4L only: If necessary, remove the metal High Voltage
Shield by lifting it out.
Lift the Input Paper Sensor Arm out.
Figure 6-5-i Remioving the inputPaper.%wsw Am
To re-instalk
Be certain the Input Paper Sensor Arm and High Voltage Shield
are aligned correctly when replacing. Mis-alignment or excessive
force will break the delicate sensor arm.
6-56
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