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Paper Width Detection Potentiometer
Inserter Tray Sensor
Sub Tray Drawn Detection Sensor
Sub Tray Folded Detection Sensor
<9> Paper Width Detection Potentiometer (T_VR)
T_VR is a potentiometer.
The paper width is detected using the output voltage, which may vary
depending on the potentiometer's knob position.
The signal is transmitted to the CPU (IC6-Pin112) through the noise fil-
ters (R48,C12).
<10> Inserter Tray Sensor (T_SEN)
T_SEN uses the photointerrupter integrated with an LED and a pho-
totransistor.
The sensor detects a sheet with the lever actuator interrupting the light
path.
The signal is transmitted to the CPU (IC6-Pin126) through the noise fil-
ters (R46,C15).
The signal input to the CPU follows the logic: "L" when a sheet is
detected, "H" when not detected.
R52 is a load resistor for the sensor.
<13> Inserter Cover Open/close Switch (JCK_SW)
JCK_SW is the inserter cover open/close switch using the microswitch.
+24V is supplied to the switch. The contacts open when the JAM cover
is open.
When the switch turns on, +24V voltage is applied to the cathode of
ZD2, the base current flows to Q12, and Q12 turns on to transmit the
signal to the CPU (IC6-Pin111).
The signal is also used as the +24V conduction signal simultaneously.
The signal input to the CPU follows the logic: "H" when the JAM cover
is open, "L" when closed.
The +24V conduction signal follows the logic: "L" when the +24V volt-
age is conducted.
<11> Sub Tray Drawn Detection Sensor (TH_SEN)
TH_SEN uses the photointerrupter integrated with an LED and the
phototransistor in one unit.
The sensor detects state of the sub tray with the lever actuator inter-
rupting the light path.
The signal is transmitted to the CPU (IC6-Pin127) through the noise fil-
ters (R44,C14).
The signal input to the CPU follows the logic: "L" when the sub tray is
drawn.
R51 is a load resistor for the sensor.
<12> Sub Tray Folded Detection Sensor (TS_SEN)
TS_SEN uses the photointerrupter integrated with an LED and a pho-
totransistor.
The sensor detects state of the sub tray with the lever actuator inter-
rupting the light path.
The signal is transmitted to the CPU (IC6-Pin128) through the noise fil-
ters (R42,C13).
The signal input to the CPU follows the logic: "L" when the sub tray is
folded.
R50 is a load resistor for the sensor.
MX-CF10 ELECTRICAL SECTION 9 - 5
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