THEORY GUIDE Cassette Handling
10DEC05
TG4825-1
Page
53 of 120
1. When the DUPLEX CAM rotates from position 1 toward position 2, the HOOK CAM
presses down on the HOOK CAM FOLLOWER.
2. The HOOK YOKE FOLLOWER presses down on the HOOK YOKE AY, making the HOOK
YOKE WHEELS press down on the HOOK YOKE LEVERS of the EXTRACTION BAR.
3. The HOOKS move up into the 2 SLOTS in the PLATE.
4. When the DUPLEX CAM moves to position 2, the LATCH inside the PLATE releases the
SCREEN from the CASSETTE SHELL.
5. The spring-loaded HOOKS fasten to the PLATE.
6. The EXTRACTION BAR holds the PLATE when the PLATE is removed from the
CASSETTE SHELL, moved through the scan/erase operation, and inserted into the
CASSETTE SHELL again.
7. When the PLATE is inserted, the DUPLEX CAM rotates to positions 3 and 4, releases the
HOOKS and locks the PLATE inside the CASSETTE.
Component Description
HOOK CAM When the DUPLEX CAM moves through positions 1 - 4, the HOOK
CAM begins the actions to release the PLATE from the CASSETTE
and fasten it to the EXTRACTION BAR. For more information, see
DUPLEX CAM AY.
HOOK YOKE
FOLLOWER
Transfers the motion of the HOOK CAM to press down on the HOOK
YOKE AY. The HOOK YOKE FOLLOWER, HOOK CAM, and HOOK
YOKE AY are not visible in the graphic.
HOOK YOKE AY Moves the HOOK YOKE WHEELS and HOOK YOKE LEVERS to
start moving the HOOKS that fasten to the PLATE. HOOK YOKE
WHEELS are not visible in the graphic.
EXTRACTION BAR Removes the PLATE from the CASSETTE, moves the PLATE
vertically through the scanning and erasing operations, and returns it
to the CASSETTE. Includes:
• HOOK YOKE LEVERS - release the LATCH that fastens the
PLATE to the CASSETTE SHELL
• HOOKS - fasten the PLATE to the EXTRACTION BAR
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