Control Of Paper Size - Xerox Phaser 4500 Service Manual

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Control of Paper Size

Phaser 4500/4510 Service Manual
Paper size switch assembly
indicates the paper size setting of the tray. Cams in the bottom of the tray are
positioned by the tray's end guide. At pre-defined paper lengths, actuators on
the side of the tray close or open the switches in a pattern that is defined in
the printer to correspond to one of the pre-set media sizes.
The following table provides the ON (1) or OFF (0) states of the switches in
the paper size switch assembly, corresponding to the paper sizes of the paper
tray.
Note
The switches in the paper size switch assembly are denoted by "SW1",
"SW2", "SW3", and "SW4", respectively, from the front side.
Paper size
No cassette
Executive SEF
B5(JIS) SEF
A5 SEF
Legal14"SEF
Letter SEF
A4 SEF
Legal13"SEF
The switches in this assembly send signals that
Paper Size Switch Assembly
SW1
SW2
SW3
0
0
0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
1
0
1
1
1
Theory of Operation
SW4
0
1
1
1
1
1
1
1
2-17

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