Chapter 7 Wiring Diagrams and Signal Information
7-381
♦ Outline of SWITCH ASSY SIZE
The paper size is determined by a combination of ON/OFF statuses of the upper, middle, and lower
switches of SWITCH ASSY SIZE.
Signal line name Description
TRAY1 SIZE0 SWITCH
ON(L)+3.3VDC ON/OFF detection signal of SWITCH ASSY SIZE upper SW
TRAY1 SIZE1 SWITCH
ON(L)+3.3VDC ON/OFF detection signal of SWITCH ASSY SIZE middle SW
TRAY1 SIZE2 SWITCH
ON(L)+3.3VDC ON/OFF detection signal of SWITCH ASSY SIZE lower SW
TRAY1 NO PAPER
SENSED(L)+3.3VDC
Cassette paper detection signal by SENSOR PHOTO (No Paper
Sensor)
TRAY1 LOW PAPER
SENSED(L)+3.3VDC
Cassette residual paper detection signal by SENSOR PHOTO
(Low Paper Sensor)
TRAY1 FEED SOL ON(L)+24VDC ON/OFF control signal of SOLENOID FEED (Tray 1)
TRAY1 TURN CL ON(L)+24VDC ON/OFF control signal of CLUTCH ASSY TURN (Tray 1)
Paper size Switches
Upper Middle Lower
LEGAL14" (SEF) ON ON ON
LEGAL13" (SEF) ON ON OFF
EXECUTIVE (SEF) ON OFF ON
B5 (SEF) ON OFF OFF
A4 (SEF) OFF ON ON
LETTER (SEF) OFF OFF ON
A5 OFF ON ON
No cassette OFF OFF OFF