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AR-M550/M620 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 9
HUS-TC
HUS-TC
Process humidity sensor
Process section peripheral
humidity detection
humidity detection
Humidity
sensor
sensor
-
-
PCU PWB
Analog detector
(Not used)
(Not used)
LEDX
LEDX
Document size sensor (Light
emitting) (LED)
emitting) (LED)
Document size detection LED
LED
-
-
SCN PWB
Other detector
M1PWS
M1PWS
Paper feed tray paper width
detector (Paper feed tray 3)
detector (Paper feed tray 3)
Multi paper feed tray paper width
detection (Paper feed tray 3)
detection (Paper feed tray 3)
Slide resistor
-
-
PCU PWB
Analog detector
M1SPD
M1SPD
Paper remaining quantity
detector (Paper feed tray 3)
detector (Paper feed tray 3)
Paper remaining quantity
detection (Paper feed tray 3)
detection (Paper feed tray 3)
Transmission
type
type
-
Remaining
paper quantity
66% or less
paper quantity
66% or less
PCU PWB
Paper feed tray
remaining quantity
sensor
remaining quantity
sensor
M1SS1
M1SS1
Paper size detector (Paper feed
tray 3)
tray 3)
Paper size detection by
combination of ON/OFF of MISS1
- 4
combination of ON/OFF of MISS1
- 4
Tact switch
PCU PWB
Multi paper feed
tray vertical size
detection (Refer
to the separate
table (*1).)
tray vertical size
detection (Refer
to the separate
table (*1).)
M1SS2
M1SS2
Paper size detector (Paper feed
tray 3)
tray 3)
Paper size detection by
combination of ON/OFF of MISS1
- 4
combination of ON/OFF of MISS1
- 4
Tact switch
PCU PWB
Multi paper feed
tray vertical size
detection (Refer
to the separate
table (*1).)
tray vertical size
detection (Refer
to the separate
table (*1).)
M1SS3
M1SS3
Paper size detector (Paper
feed tray 3)
Paper size detection by
combination of ON/OFF of MISS1
- 4
combination of ON/OFF of MISS1
- 4
Tact switch
PCU PWB
Multi paper feed
tray vertical size
detection (Refer
to the separate
table (*1).)
tray vertical size
detection (Refer
to the separate
table (*1).)
M1SS4
M1SS4
Paper size detector (Paper
feed tray 3)
Paper size detection by
combination of ON/OFF of MISS1
- 4
combination of ON/OFF of MISS1
- 4
Tact switch
PCU PWB
Multi paper feed
tray vertical size
detection (Refer
to the separate
table (*1).)
tray vertical size
detection (Refer
to the separate
table (*1).)
M2SPD
M2SPD
Paper remaining quantity
detector (Paper feed tray 4)
detector (Paper feed tray 4)
Paper remaining quantity
detection (Paper feed tray 4)
detection (Paper feed tray 4)
Transmission
type
type
-
Remaining
paper quantity
66% or less
paper quantity
66% or less
PCU PWB
Paper feed tray
remaining quantity
sensor
remaining quantity
sensor
M2SS1
M2SS1
Paper size detector (Paper feed
tray 4)
tray 4)
Paper size detection by
combination of ON/OFF of MISS1
- 4
combination of ON/OFF of MISS1
- 4
Tact switch
PCU PWB
Multi paper feed
tray vertical size
detection (Refer
to the separate
table (*1).)
tray vertical size
detection (Refer
to the separate
table (*1).)
M2SS2
M2SS2
Paper size detector (Paper
feed tray 4)
Paper size detection by
combination of ON/OFF of MISS1
- 4
combination of ON/OFF of MISS1
- 4
Tact switch
PCU PWB
Multi paper feed
tray vertical size
detection (Refer
to the separate
table (*1).)
tray vertical size
detection (Refer
to the separate
table (*1).)
M2SS3
M2SS3
Paper size detector (Paper feed
tray 4)
tray 4)
Paper size detection by
combination of ON/OFF of MISS1
- 4
combination of ON/OFF of MISS1
- 4
Tact switch
PCU PWB
Multi paper feed
tray vertical size
detection (Refer
to the separate
table (*1).)
tray vertical size
detection (Refer
to the separate
table (*1).)
M2SS4
M2SS4
Paper size detector (Paper feed
tray 4)
tray 4)
Paper size detection by
combination of ON/OFF of MISS1
- 4
combination of ON/OFF of MISS1
- 4
Tact switch
PCU PWB
Multi paper feed
tray vertical size
detection (Refer
to the separate
table (*1).)
tray vertical size
detection (Refer
to the separate
table (*1).)
MHPS
MHPS
Scanner home position sensor
Scanner home position detection
Transmission
type
type
Home position
PCU PWB
Sensor
OCSW
OCSW
SPF open/close detector
Document size detection trigger
Transmission
type
type
Close
SCN PWB
Sensor
PCS
PCS
Image density sensor
Detection of density of toner patch
on the OPC drum
on the OPC drum
Reflection type
-
-
PCU PWB
Analog detector
PDSELX
PDSELX
Document size sensor (Light
reception) (PT)
reception) (PT)
Document size detection
Photo
transistor
transistor
-
-
SCN PWB
Other detector
RTH1
RTH1
Heat roller temperature sensor
Heat roller temperature detection
Thermistor
-
-
PCU PWB
Analog detector
RTH2
RTH2
Pressure roller temperature
sensor
sensor
Pressure roller temperature
detection
detection
Thermistor
-
-
PCU PWB
Analog detector
RTH3
RTH3
Sub heat roller temperature
sensor
sensor
Sub heat roller temperature
detection
detection
Thermistor
-
-
PCU PWB
Analog detector
SCOV
SCOV
SPF cover switch
SPF cover open/close detection
Transmission
type
type
Close
SCN PWB
Sensor
SOCD
SOCD
SPF open/close detector
SPF unit open/close detection
Transmission
type
type
Close
SCN PWB
Sensor
T1SPD
T1SPD
Paper remaining quantity
detector (Paper feed tray 1)
detector (Paper feed tray 1)
Paper remaining quantity
detection (Paper feed tray 1)
detection (Paper feed tray 1)
Transmission
type
type
-
Remaining
paper quantity
50% or less
paper quantity
50% or less
PCU PWB
Paper feed tray
remaining quantity
sensor
remaining quantity
sensor
T2SPD
T2SPD
Paper remaining quantity
detector (Paper feed tray 2)
detector (Paper feed tray 2)
Paper remaining quantity
detection (Paper feed tray 2)
detection (Paper feed tray 2)
Transmission
type
type
-
Remaining
paper quantity
33% or less
paper quantity
33% or less
PCU PWB
Paper feed tray
remaining quantity
sensor
remaining quantity
sensor
Code
Signal
name
Name
Function/Operation
Type
Connector level
PWB name
Note
"L"
"H"
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