Paper Size Detection - OKIDATA Okipage 20 Service Manual

The four tab pieces are driven according to the setting position of the paper guide through the cam
interlocked with the paper guide of the paper cassette.
When the paper cassette is inserted into the printer, the state of the tab pieces is detected by the
microswitch to recognize the paper size.
State of Microswitches
SW1 SW2
0 1
0 1
0 0
1 1
1 0
1 1
1 1
1 0
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SW3 SW4
1 1 Letter
0 1 Executive
1 1 A4
1 0 Legal 14
1 1 Legal 13
0 1 B5
0 0 A5
0 1 A6 (Not available)
Service Manual - OKIPAGE20
Chapter 2 Operation Description
Paper size
Page: 22