7. SWITCHES/ SENSORS IDENTIFICATION.
.
.
1
*
Printer, Duplex Unit.
.
s2
Interlock Switch
!33
Duplex Cover Switch (Option)
s4
2nd Paper Size Switch
PC1
Paper Take-up Sensor
PNEl Paper Near-empty
Se&&r
PE2
2nd Paper Empty Sensor
Detects paper empty of 2nd Cassette Unit. Active:
“E
PNE2-1
2nd Paper Near-empty
Sensor
PNE2-2 2nd
Paper Near-empty
Sensor
i
TEI
Toner Empty Sensor
Detects 50 sheets
ofpapesfor
2nd Cassette Unit.
Active:
‘33”
Detects 250 sheets of paper for 2nd Cassette Unit
Active:
“ET
Detects toner empty condition. Active:
‘z”
THl
Thermistor
TSl
I
I
Thermostat
Function
Turns
powex
ON and OFF.
Detects the paper exit
ofFus&
Unit Active:
‘WY
De&da paper in Duplex Unit. Active:
‘z”
Defects the timing of 2nd Cassette Unit. Duplex Unit:
‘z”
I
Detects paper empty condition. Active:
‘H”
Detects 50 sheets of
paper.
Active:
‘H”
Detects
the
kmperature of Upper Fusing Roller.
Cuts
OFF
the
current
to
Heater
Lamp when
temperature is
I