Specifications

10.5 PAPER SIZE DETECTION
10.5.1 1st Feed Station
The paper size switch (SW3) [A] in the cassette entrance detects the paper
size. The paper size switch has five microswitches (SW3-1 through 3-5)
inside. The paper size switch is actuated by an actuator plate [B] on the rear
of the cassette. Each paper size has its own unique combination of notches
in the plate. The CPU receives a LOW signal from the microswitches
activated by the actuator and determines which cassette was inserted.
[B]
[A]
1 2 3 4 5
SW3–
1 December 1990
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