6. After the completion of the staple operation, the stapler/stacker driver rotates M1302 clockwise
and moves the jogger guide to its home position. This allows the paper pile on the jogger guide
to fall into the delivery tray.
Home position
(Top view)
Print paper
Figure 4-54 Jogger operation
The home position of the jogger guide is monitored by the stapler/stacker driver and the jogger
home-position sensor.
NOTE Whether the fed paper is the last sheet of the job or not is determined by the
page information sent from the formatter. If it is the last sheet, the EOJ (End Of Job) is
recorded in its page information.
Jogger home-position detection
The stapler/stacker detects the home position of the jogger guide by monitoring the jogger home-
position signal (JOG-HP) sent from the jogger home-position sensor (PS1304).
A rib-shaped jogger home-position flag is attached to the jogger guide. The flag has a notch, and the
position of the jogger guide is detected by PS1304 passing the notch.
During the jogger-guide operation, PS1304 is interrupted by the jogger home-position flag and the
JOG-HP indicates “H”. However, PS1304 is not interrupted by the jogger home-position flag during
the jogger home-position detection. The JOG-HP becomes “L” and the stapler/stacker driver
determines that jogger guide is at its home position.
During the jogger home-position detection, the stapler/stacker driver rotates the jogger motor
(M1302) clockwise for a specified period of time. If JOG-HP does not change from “L” to “H”, the
driver detects a jogger-motor failure and stops the loads. Then it notifies the formatter of the failure.
182 Chapter 4 Theory of operation ENWW
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