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HP LASERJET ENTERPRISE M855 - Page 187

HP LASERJET ENTERPRISE M855
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Hole puncher assembly
The stapler/stacker with hole puncher assembly has either one of the 2-hole/3-hole puncher
assembly or 2-hole/4-hole puncher assembly so that it operates two types of hole punching functions.
The puncher assembly has following two functions:
Side registration operation
Hole punching operation (2-hole/3-hole or 2-hole/4-hole)
Figure 1-109 Hole puncher assembly
PTR1
LED1
2
3
4
5
2
3
4
5
PTR1
LED1
2
3
4
5
2
3
4
5
2-hole/4-hole puncher assembly
Paper feed direction
Punch shaft
Punch motor
Punch
Off-centering cam
Punch home position sensor
Encoder
Punch motor clock sensor
Photosensor PCA
LED PCA
Photosensor PCA
LED PCA
Trailing edge sensor
Side registration sensor
PTR1
LED1
2
3
4
5
2
3
4
5
Punch slide ass’y
Side registration motor
Side registration home position sensor
Punch chip box
Punch chip box full sensor PCA
Punch feed motor
Punch feed roller
2-hole/3-hole puncher assembly
4-hole punch
2-hole punch
3-hole punch
2-hole punch
ENWW Stapler/stacker and stapler/stacker with hole punch 145

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