User Guide

Stapler/stacker
The dc controller PCA controls the stapler stacker by sending signals to the stapler/stacker PCA. The
stapler/stacker PCA controls the stapler/stacker motor, solenoids, sensors, and the stapler unit.
When the printer power is turned on, the printer low-voltage supply circuit supplies dc power to the
stapler/stacker. The stapler/stacker performs the power-on sequence 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.
Stapler/stacker feed and delivery
The stapler/stacker feed and delivery system consists of several feed rollers and guides that the
stapler/stacker motors and solenoids drive. Sensors along the stapler/stacker paper path detect the
arrival and passage of media and confirm the position of the jogger guide. The jogger guide helps to
align the pages before stapling and dropping them into the delivery bin.
The stapler/stacker has two modes. The staple mode staples sheets together and drops them into
the delivery bin. The stack mode drops the sheets directly into the delivery bin without stapling them
together.
Table 5-6 Stapler/stacker components
Component Purpose
Motor Paddle motor (M1101) ■ Rotates the paddle (clockwise)
■ Disengages the delivery roller
(counterclockwise)
Jogger motor (M1102) Shifts the jogger guide.
■ Widens the jogger guide (clockwise)
■ Narrows the jogger guide (counterclockwise)
Feed motor (M103) Rotates the feed and delivery rollers
Stapler motor (M1104) Rotates the staple cam
Solenoid Deflector solenoid (SL1101) Operates the delivery deflector
Clamp solenoid (SL1102) Operates the stapler clamp
Sensor Paper-inlet sensor (PS1101) Detects jams
Paper-delivery sensor (PS1102) Detects jams
Paddle home-position sensor (PS1103) Detects whether the paddle is in the home
position
Delivery-roller disengaging sensor (PS1104) Detects the disengaging the delivery roller
Jogger home-position sensor (PS1105) Determines whether the jogger guide is in the
home position
Delivery paper-full sensor (PS1106) Detects a full delivery bin
Switch Door-open switch (SW1101) Detects an open door
142 5 Theory of operation