Canon STAPLER STACKER SS-72, Руководство по обслуживанию

Страница: 52 / 130

F. Stapler Unit
Stapling is operated by the staple motor (M6), and one rotation of the cam completes one cycle
of stapling operation. The home position of the cam is detected when the stapling operation
home position switch (PT2) is turned ON.
The staple motor (M6) is controlled by the microcomputer (CPU) on the stapler stacker driver
PCB for clockwise and counterclockwise rotation.
When PT2 is off, the stapler stacker driver rotates M6 counterclockwise until PT2 is turned
ON and initializes the stapling operation.
The staples inside the staple cartridge are detected by the staple switch (PT1).
The stapler stacker driver does not drive the staple motor (M6) unless the swing guide close
detection switches (MS2, MS6) are ON (swing guide is closed). This is a safety protection func-
tion in case a finger is inserted when stapling.
The stapler stacker driver informs the option controller PCB of the staple motor trouble in the
following cases:
1. Home position detection does not finish in 0.5 sec. after it started.
2. Stapling operation home position switch (PT2) remains ON when 0.5 sec. passes since the
start of stapling operation.
Furthermore, during stapling operation if the Stapling operation home position switch (PT2) does
not turn OFF 0.5 sec. after it was turned ON, the stapler stacker driver judges it as staple jams
and rotates the staple motor (M6) counterclockwise until PT2 is turned ON. If PT2 is not turned
ON after 0.5 sec., it is regarded as a staple motor failure. It also informs the option controller
of the jams or staple motor failure.
Figure 2-2-20
2 - 26
CHAPTER 2
Staple motor
Support base
Staple press
head plate
Staping operation home position switch Staple switch
Cartridge
Cam