User manual

95.08.23.11.30
Color LaserWriter 12/600 PS Basics & Theory 1–102
Gripper
Control
The opening and closing of the gripper are controlled by the gripper
drive signal (
GRIPON) sent from the mechanical controller.
When the GRIPON signal turns “H,” the gripper solenoid (SL4) is
turned on, and the gripper drive cam is pressed. Meanwhile, the gripper
drive arm in the transfer drum rotates around the transfer drum shaft
along with the transfer drum rotation. When the gripper arm is pressed
against the cam projection, it pushes up the gripper lever to open the
gripper.
The gripper drive cam projection separates from the drive arm in accor-
dance with the rotation of the transfer drum, closing the gripper. More-
over, since the cam is separated from the gripper arm while the
GRIPON
signal is “L,” the gripper does not open.
Paper
Gripper
Gripper lever
Projection
3
1
2Gripper Solenoid
(SL4)
Gripper
Drive
Arm
Gripper Drive Cam