THEORY GUIDE Scan/Erase
10DEC05
TG4825-1
Page
70 of 120
PLATE POSITIONING AY
The ARMS of the PLATE POSITIONING AY
keep the PLATE in the correct vertical
position for removal from the CASSETTE,
for scanning, and for inserting the PLATE
into the CASSETTE SHELL after scanning.
The PLATE POSITIONING AY has 2 ARMS
that each include:
• LOWER ARM - when the EXTRACTION
BAR moves down to the position
immediately before scanning starts, the
LOWER ARM moves forward to touch
the back of the PLATE, which is partially
out of the CASSETTE SHELL. The
LOWER ARM keeps the PLATE
SCREEN from touching the WALLS of
the CASSETTE when it moves out of the
CASSETTE.
• UPPER ARM - after the LOWER ARM
moves forward to touch the back of the
PLATE, the UPPER ARM also moves
forward. It keeps the larger PLATES
steady during scanning and when they
move out of and back into the
CASSETTE.
LEAD SCREW
The LEAD SCREW is connected to the MOTOR SHAFT. When the LEAD SCREW rotates, it
moves the EXTRACTION BAR up and down.
H194_5013GC
H194_5013GCB
PLATE
POSITIONING
AY
EXTRACTION
BAR
PLATE
UPPER ARM
LOWER ARM
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