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2.6.2 Sensor Descriptions
The following table gives a brief description of each sensor and its function.
Code
Name
Detects
Sensor Type
DS1
Document sensor 1
Presence of document in feeder
Photo interrupter
DS2
Document sensor 2
Leading and trailing edge of
document
Photo reflector
DS3
Document sensor 3
Leading and trailing edge of
document backside
Photo reflector
DRS
Document resist sensor Detect timing for document resist
ration
Photo interrupter
DEXIT
Document exit sensor
Detect document discharge
Photo interrupter
HS
Mirror carriage home
position sensor
CIS position
Photo interrupter
APS
ADF permission sensor ADF ready
Photo interrupter
TXIL
Interlock switch
Scanner cover open or close
Photo interrupter
FCOVER
(FRNT_OP)
Front cover switch
Detects front cover is open or
close
Photo interrupter
PES
(PES1)
Paper empty sensor
Detects presence of recording
paper in the first paper
cassette
Photo interrupter
PDS
Paper discharge sensor Detects paper pass at paper exit
Photo interrupter
PRS
Paper resist sensor
Detects paper registrant timing
Photo interrupter
SWBK
Switchback sensor
Detects paper switching back at
paper exit area at duplex printing
Photo interrupter
OPEN
(CAS1)
Paper cassette open
sensor
Detects the first paper cassette
open or close
Photo interrupter
TOS_TC
Toner sensor
Detects toner empty at toner car-
tridge
Photo interrupter
TOS_DC
Toner sensor
Detects toner empty at drum car-
tridge
Photo interrupter
TRAYS
(PESM)
Tray sensor
Detects presence of recording
paper in the bypass tray
Photo interrupter
JAMC
(SIDE_OP)
Jam access cover sen-
sor
Detects the side cover open or
close
Photo interrupter
TEMP
Temperature
Detects temperature and humidity
TH1
(TH_F)
Thermistor 1
Fuser thermistor
INTRLCK
Inter lock
Interlock switch for printers
Mechanical Switch
PES OP
(PES2)
Paper empty sensor
Detects presence of recording
paper in the 2nd paper cassette
Photo interrupter
OPEN OP
(CAS2)
Paper cassette open
sensor
Detects the 2nd paper cassette
open or close
Photo interrupter
JAMC2
(JAM2_OP)
Jam access cover
sensor
Detects the 2nd paper cassette
side cover open or close
Photo interrupter
Summary of Contents for bizhub 25e
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