Read Sharp AR-M550 (serv.man10) Service Manual online
AR-M550/M620 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 10
B. Switch
TANSET
TANSET
Paper feed tray 1/2 detection
signal
signal
Paper feed tray 1, 2 (Tandem tray)
insertion detection
insertion detection
Transmission
type
type
Pull-out
Insertion
PCU PWB
Paper feed tray
system sensor
system sensor
TCS
TCS
Toner density sensor
Toner density detection
Magnetic
sensor
sensor
-
-
PCU PWB
Analog detector
TFSD
TFSD
Toner remaining quantity
sensor
sensor
Toner hopper toner remaining
quantity detection
quantity detection
Magnetic
sensor
sensor
Remaining
quantity great
quantity great
Remaining
quantity small
quantity small
PCU PWB
Other sensor,
switch
switch
TH
TH
LCD thermistor
LCD section temperature
detection
detection
Thermistor
-
-
SCN PWB
Other detector
TH-CL
TH-CL
OPC drum temperature sensor
OPC drum peripheral temperature
detection
detection
Thermistor
-
-
PCU PWB
Analog detector
TH-DV
TH-DV
Developing temperature/
humidity sensor
humidity sensor
Developing section temperature
detection
detection
Thermistor/
humidity
humidity
-
-
PCU PWB
Analog detector
(Not used)
(Not used)
TH-EX
TH-EX
Paper exit unit temperature
sensor
sensor
Paper exit unit peripheral
temperature detection
temperature detection
Thermistor
-
-
PCU PWB
Analog detector
TH-RA
TH-RA
Machine temperature sensor
Machine temperature detection/
paper exit section temperature
detection (Cooling fan operation
monitor)
paper exit section temperature
detection (Cooling fan operation
monitor)
Thermistor
-
-
PCU PWB
Analog detector
(Not used)
(Not used)
THPS1
THPS1
Transfer belt contact/separation
home position sensor 1
home position sensor 1
Transfer belt separation home
position detection 1
position detection 1
Transmission
type
type
-
Contact
PCU PWB
THPS2
THPS2
Transfer belt contact/separation
home position sensor 2
home position sensor 2
Transfer belt separation home
position detection 2
position detection 2
Transmission
type
type
-
Contact
PCU PWB
Not used.
TLS
TLS
Waste toner pipe lock detector
Waste toner pipe lock detection
Lead type
-
Lock (Tilt)
PCU PWB
Other sensor,
switch
switch
TNCA
TNCA
Waste toner full detection signal Waste toner full detection
Magnetic
sensor
sensor
-
-
PCU PWB
Not used.
Code
Signal
name
Name
Type
Function/Operation
Active
condition
MODEL
NOTE
DSW-F
DSW-F
Front door open/close
switch
switch
Micro switch
Front door open/close detection, Main
charger power source, Developing bias
power line open/close
charger power source, Developing bias
power line open/close
DSW-L
DSW-L
Left door open/close
switch
switch
Micro switch
Left door open/close detection, Main
charger power source, Developing bias
power line open/close
charger power source, Developing bias
power line open/close
DSW-R
DSW-R
Manual paper feed
unit open/close switch
unit open/close switch
Micro switch
Manual paper feed unit open/close
detection, Main charger power source,
Developing bias power line open/close
detection, Main charger power source,
Developing bias power line open/close
MPSW
Main power switch
Seesaw switch
Turns ON/OFF all the power sources.
MSW
Power switch
Seesaw switch
Turns ON/OFF the main DC power
source. (Turns ON/OFF the engine power
source except for the sub DC power
source.)
source. (Turns ON/OFF the engine power
source except for the sub DC power
source.)
Shut-off
solenoid
built-in
solenoid
built-in
WH-SW
WH-SW
Dry heater switch
Seesaw switch
Turns ON/OFF the power line of the dry
heater.
heater.
Code
Signal
name
Name
Function/Operation
Type
Connector level
PWB name
Note
"L"
"H"
WH-SW
DSW-L
MPSW
DSW-F
MSW
DSW-R
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