M-3
1-2. Paper Empty Detection
• There is a Paper Empty Sensor provided on the 2nd Drawer Control Board. It detects a
paper empty condition of the cassette.
• When paper is loaded, the actuator is raised and blocks the sensor.
• If there is no paper loaded, the actuator drops in the hole in the Paper Lifting Plate, thus
unblocking the sensor.
1-3. Cassette Type Detection
• The Paper Feed Cassette is provided with the Cassette Type Detection Switch.
• When the cassette is inserted into the printer, the switch pusher provided on the right-
hand side of the cassette pushes the lever according to the paper size, turning ON the
switch.
• The Cassette Type Detection Switch consists of three switches.
The combination of these switches that turn either ON or OFF allows the printer to deter-
mine the cassette type (paper size).
Actuator
4136M542AA
Paper Empty Sensor
When Paper is Loaded When Paper is not Loaded
4516M003AA
Actuator
Switch2
Switch1
Switch0
Paper Feed Cassette
4136M531AA
Cassette Type Detection Switch (SW1)
Switch Pusher
OFF
ON
4136M530AA
Lever
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