- HP All-in-One Printer Manual

Q2431-90912 Chapter 5 Theory of operation 111
At a specific time after the paper inlet sensor (PS1101) detects the trailing edge of the media, the
stapler/stacker driver PCA activates the clamp solenoid (SL1102). The clamp keeps the page
from being pushed out of position by the pages that follow.
Figure 40. Staple mode feed and delivery diagram (4 of 6)
The stapler/stacker now operates according to the following conditions.
● Is this the last page in the staple job
• No. The feed motor (M1101) changes speed and another page enters the stapler/
stacker. The stapler/stacker driver PCA activates the jogger motor and the jogger
guide moves to align the media stack horizontally. The stapler/stacker driver PCA
activates the paddle motor and the paddle pushes the page up against a guide to
align the media stack vertically. The delivery deflector moves into position to allow
the next page to enter the stapler/stacker.
• Yes. The feed motor (M1101) turns off. The stapler/stacker driver PCA activates the
jogger motor and the jogger guides move inward to align the media stack
horizontally. The stapler/stacker driver PCA activates the paddle motor and the
paddle pushes the page up against a guide to align the media stack vertically. Then
the pages are stapled.
Figure 41. Staple mode feed and delivery diagram (5 of 6)
Upper
delivery
roller
Lower
delivery
roller
Jogger guides
Waiting position
PS1101
SL1102
Paddle
Lower
delivery
roller
Jogger guide
authentically
aligns the
media stack
Jogger guide
Media
Paddle vertically
aligns the media
stack
Staple