FujiFilm CR-IR341 Service Manual page 83

C 1 2
ONTENTS
7. Descriptions of Operations
7.1 Elevation Unit
Elevation Home Position Sensor
The elevation unit performs its up-down operation by transferring the driving from the MB3 to
the worm gear via the timing belt.
Operational requirements are imposed on the movement (up or down) of the elevation unit: it
can be operated when the suction cups are in their home position (HP) (in order to prevent
interference between the suction cup arm and the cassette set unit).
Home positioning of the elevation unit is detected by SA17 (elevation HP sensor) and SB3
(each shelf position sensor), and implemented during initialization.
When the elevation operation is permitted, MB3 is driven and SA17 sensor detection is
implemented (OPEN
CLOSE OPEN) to ensure that the elevation unit is located at the topmost shelf position.
Subsequently, 1-pulse driving is performed by MB3, and the home position is detected by
the SB sensor (OPEN
Actuator
SA17
Hole
Actuator
Hole
SB3
Each Shelf Position Sensor
When a cassette is inserted into the cassette set unit (first shelf through fourth shelf), MB3 is
driven to move the elevation unit to the cassette shelf where the cassette has been inserted.
The cassette set unit has an actuator installed for each shelf, so the shelf position is deter-
mined by SB sensor detection (OPEN
Hole
009-051-04
05.31.99 FM2460
3 4 5 6
CLOSE); then SB sensor detection is implemented (OPEN
CLOSE).
Actuator
SB3
CR-IR341 Service Manual
7 8 9 10
CLOSE).
FR1H0202.EPS
MD - 20
Timing belt
MB3
FR1H0201.EPS
MD - 20