Minolta PagePro 1200 Series Service Manual page 48

PagePro 1200 Series Mechanical / Electrical
Cassette Type Detection
The Second Paper Cassette Unit is provided with a Cassette Type Detecting Switch that comes with
a lever.
When the paper cassette is slid into position, the projections on the right-hand side of the cassette
push the lever according to the size of the paper loaded in the cassette, thus turning off or on the Cas-
sette Type Detecting Switch.
The Cassette Type Detecting Switch consists of three subswitches. The combination, in which these
subswitches are turned on and off, allows the printer to determine the cassette type (or the paper
size).
Cassette Type Detecting Switch (SW21)
Paper Cassette
SW21settings for paper sizes
Cassette Type
A4
B5
Letter
Legal
Executive
No Cassette
(Undefined)
Lever
projections
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SW21-1 SW21-2 SW21-3
OFF OFF ON
ON ON OFF
OFF ON OFF
ON OFF OFF
OFF ON ON
OFF OFF OFF
ON ON ON
ON OFF ON
48
OFF
ON
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SW21-3
SW21-2
SW21-1