- HP All-in-One Printer Manual

Q2431-90912 Chapter 5 Theory of operation 113
Stapler unit
The major components of the stapler unit are the stapler motor (M104), the staple cartridge, the
staple-detection switch, and the staple-module home-position switch. The staple cartridge holds
a maximum of 1,000 staples. The stapler/stacker driver PCA controls the stapler unit.
Figure 44. Stapler unit I/O block diagram
Stapler unit
Stapler/stacker