HP Pro 4300 C9H70UT C9H70UT#ABA manual Stapler/stacker driver PCA block diagram

Stapler/stacker

The DC controller PCA controls the stapler stacker by sending signals to the stapler/stacker driver PCA. The stapler/stacker PCA controls the stapler/stacker motor, solenoids, sensors, and the stapler unit. When the printer power is turned on dc power from the printer’s low-voltage supply circuit is supplied to the stapler/stacker. The stapler/stacker performs the power on sequence (see figure 32 on page 102) and enters the standby mode. When the DC controller PCA sends a signal, the stapler/stacker driver PCA activates the motors and solenoids as needed to perform the staple and stack operation.

Figure 35. Stapler/stacker driver PCA block diagram

106 Theory of operation Q2431-90912