Sharp AR-M550 (serv.man4) Service Manual ▷ View online
: Feb. 9 2004
1
AR-M550/M620/M700 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 10
B. Switch
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
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 humidity sensor
Developing section humidity
detection
detection
Thermistor/
humidity
humidity
-
-
PCU PWB
Analog detector
TH-EX
TH-EX
Paper exit unit temperature
sensor
sensor
Paper exit unit peripheral
temperature detection (Cooling
fan operation monitor)
temperature detection (Cooling
fan operation monitor)
Thermistor
-
-
PCU PWB
Analog detector
TH-RA
TH-RA
Room temperature sensor
Room temperature detection
Thermistor
-
-
PCU PWB
Analog detector
(Not used)
(Not used)
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
MODEL
Active
condition
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
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
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
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.)
(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.
Code
Signal
name
Name
Function/Operation
Type
Connector level
PWB name
Note
"L"
"H"
1
1
1
1
WH-SW
DSW-L
MPSW
DSW-F
MSW
DSW-R
: Feb. 9 2004
1
AR-M550/M620/M700 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 11
C. Clutch/solenoid
Code
Signal
name
Name
Function/Operation
Type
MODEL
NOTE
DGS
DGS
Paper exit gate solenoid
Paper exit gate drive
Electromagnetic
solenoid
solenoid
DSKLS
DSKLS
Paper guide lock solenoid
Lock the horizontal transport paper
guide.
guide.
Electromagnetic
solenoid
solenoid
DSKPFC1
DSKPFC1
Paper feed tray 3/4 paper
transport clutch 1
transport clutch 1
Paper feed tray 3/4 section paper
transport roller ON/OFF control
transport roller ON/OFF control
Electromagnetic
clutch
clutch
DSKPFC2
DSKPFC2
Paper feed tray 3/4 paper
transport clutch 2
transport clutch 2
Paper feed tray 3/4 section paper
transport roller ON/OFF control
transport roller ON/OFF control
Electromagnetic
clutch
clutch
HPFC
HPFC
Horizontal paper transport
clutch
clutch
Manual paper feed, paper feed tray 2
section, LCC paper transport roller
ON/OFF control
section, LCC paper transport roller
ON/OFF control
Electromagnetic
clutch
clutch
M1PFC
M1PFC
Paper feed clutch (Paper feed
tray 3)
tray 3)
Paper freed tray 3 section roller ON/
OFF control
OFF control
Electromagnetic
clutch
clutch
M1PUS
M1PUS
Paper pickup solenoid (Paper
feed tray 3)
feed tray 3)
Presses the paper pickup roller onto
paper.
paper.
Electromagnetic
solenoid
solenoid
M2PFC
M2PFC
Paper feed clutch (Paper feed
tray 4)
tray 4)
Paper freed tray 4 section roller ON/
OFF control
OFF control
Electromagnetic
clutch
clutch
M2PUS
M2PUS
Paper pickup solenoid (Paper
feed tray 4)
feed tray 4)
Presses the paper pickup roller onto
paper.
paper.
Electromagnetic
solenoid
solenoid
MFPUS
MFPUS
Paper pickup solenoid
(Manual paper feed)
(Manual paper feed)
Presses the paper pickup roller onto
paper.
paper.
Electromagnetic
solenoid
solenoid
MPFC
MPFC
Paper feed clutch (Manual
paper feed)
paper feed)
Manual paper feed section paper
feed roller ON/OFF control
feed roller ON/OFF control
Electromagnetic
clutch
clutch
MPFGS
MPFGS
Manual paper feed gate
solenoid
solenoid
Manual feed gate solenoid open/
close control
close control
Electromagnetic
solenoid
solenoid
PSBC
PSBC
Resist roller brake clutch
Resist roller braking
Electromagnetic
clutch
clutch
PSPS
PSPS
Separation solenoid
OPC drum separation pawl drive
Electromagnetic
solenoid
solenoid
RRC
RRC
Resist roller clutch
Resist roller ON/OFF control
Electromagnetic
clutch
clutch
MPFC
HPFC
T2PFC
MFPUS
MPFGS
T2PUS
STRC
STRBC
STRRC
STRRBC
DSKLS
M1PFC
T1PFC
PSBC
RRC
DSKPFC1
M2PFC
M1PUS
T1PUS
DSKPFC2
DGS
PSPS
PSPS
SRRBC
SRRC
SPFC
M2PUS
1
1
1
: Feb. 9 2004
1
AR-M550/M620/M700 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 12
D. Motor
SPFC
SPFC
SPF paper feed clutch
SPF paper feed section roller ON/
OFF control
OFF control
Electromagnetic
clutch
clutch
SRRBC
SRRBC
SPF resist roller brake clutch
SPF resist roller braking
Electromagnetic
clutch
clutch
SRRC
SRRC
SPF resist roller clutch
SPF resist roller ON/OFF control
Electromagnetic
clutch
clutch
STMPS
STMPS
Stamp solenoid control signal
Stamp drive
Electromagnetic
solenoid
solenoid
STRBC
STRBC
SPF paper transport roller 2
brake clutch
brake clutch
SPF transport roller 2 braking
Electromagnetic
clutch
clutch
STRC
STRC
SPF paper transport roller 2
clutch
clutch
SPF transport roller 2 ON/OFF
control
control
Electromagnetic
clutch
clutch
STRRBC
STRRBC
SPF No. 1 resist roller breake
clutch
clutch
SPF transport roller 3 braking
Electromagnetic
clutch
clutch
STRRC
STRRC
SPF No. 1 resist roller clutch
SPF transport roller 3 ON/OFF
control
control
Electromagnetic
clutch
clutch
T1PFC
T1PFC
Paper feed clutch (Paper feed
tray 1)
tray 1)
Paper freed tray 1 section roller ON/
OFF control
OFF control
Electromagnetic
clutch
clutch
T1PUS
T1PUS
Paper pickup solenoid (Paper
feed tray 1)
feed tray 1)
Presses the paper pickup roller onto
paper.
paper.
Electromagnetic
solenoid
solenoid
T2PFC
T2PFC
Paper feed clutch (Paper feed
tray 2)
tray 2)
Paper freed tray 2 section roller ON/
OFF control
OFF control
Electromagnetic
clutch
clutch
T2PUS
T2PUS
Paper pickup solenoid (Paper
feed tray 2)
feed tray 2)
Presses the paper pickup roller onto
paper.
paper.
Electromagnetic
solenoid
solenoid
Code
Signal
name
Name
Type
Function/Operation
Active
condition
MODEL
NOTE
ADM1
ADM1
Duplex (ADU) motor 1
Stepping motor
Drives the paper transport
roller 2 and the paper
transport roller 19.
roller 2 and the paper
transport roller 19.
High speed
ADM2
ADM2
Duplex (ADU) motor 2
Stepping motor
Drives the paper exit rollers
20 and 21.
20 and 21.
Selection of
Normal speed/
High speed
Normal speed/
High speed
DM
DM
OPC drum motor
DC brushless
motor
motor
Drives the OPC drum and
the transfer section.
the transfer section.
DVM
DVM
Developing motor
DC brushless
motor
motor
Drives the developing
section.
section.
FUM
FUM
Fusing motor
DC brushless
motor
motor
Drives the fusing section.
Code
Signal
name
Name
Function/Operation
Type
MODEL
NOTE
1
1
SPFM
SLUM
SPSM
ADM1
ADM2
TURM
MM
M1LUM
M2LUM
T1LUM
T2LUM
DM
FUM
PGM
MIM
TM2
TM1
POM1
POM2
DVM
VPM
TRM
1
: Feb. 9 2004
1
AR-M550/M620/M700 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 13
M1LUM
M1LUM
Paper feed tray lift-up
motor (Paper feed tray 3)
motor (Paper feed tray 3)
DC brush motor
Drives the lift plate of the
paper feed tray.
paper feed tray.
Selection of
Rotation mode/
Brake mode
Rotation mode/
Brake mode
M2LUM
M2LUM
Paper feed tray lift-up
motor (Paper feed tray 4)
motor (Paper feed tray 4)
DC brush motor
Drives the lift plate of the
paper feed tray.
paper feed tray.
Selection of
Rotation mode/
Brake mode
Rotation mode/
Brake mode
MIM
MIM
Scanner (reading) motor
Stepping motor
Drives the scanner
(reading) section.
(reading) section.
MM
MM
Main motor
DC brushless
motor
motor
Drives the paper feed trays
1, 2, 3, and 4, and the
manual paper feed section.
1, 2, 3, and 4, and the
manual paper feed section.
PGM
PGM
LSU motor
DC brushless
motor
motor
Drives the scanner (writing)
(LSU) unit mirror.
(LSU) unit mirror.
POM1
POM1
Paper exit motor 1
Stepping motor
Drives the paper transport
roller 16.
roller 16.
Selection of
Normal speed/
High speed
Normal speed/
High speed
POM2
POM2
Paper exit motor 2
Stepping motor
Drives the paper exit roller
1.
1.
Selection of
Normal speed/
High speed/
Reverse rotation
Normal speed/
High speed/
Reverse rotation
SLU
/SLUM
SPF paper tray lift motor
Stepping motor
Lifts up and down the SPF
paper feed tray.
paper feed tray.
SPFM
SPFM1
SPF paper feed motor,
paper transport motor
paper transport motor
Stepping motor
Drives the paper feed roller
and the transport roller.
and the transport roller.
SPSM
SPFM2
SPF paper exit motor
Stepping motor
Drives the paper exit roller.
(SPF)
(SPF)
T1LUM
T1LUM
Paper feed tray lift-up
motor (Paper feed tray 1)
motor (Paper feed tray 1)
DC brush motor
Drives the lift plate of the
paper feed tray.
paper feed tray.
Selection of
Rotation mode/
Brake mode
Rotation mode/
Brake mode
T2LUM
T2LUM
Paper feed tray lift-up
motor (Paper feed tray 2)
motor (Paper feed tray 2)
DC brush motor
Drives the lift plate of the
paper feed tray.
paper feed tray.
Selection of
Rotation mode/
Brake mode
Rotation mode/
Brake mode
TM1
TM1
Toner motor 1
Synchronous
motor
motor
Transports toner in the
toner hopper to the
developing unit. /
Transports waste toner to
the waste toner section.
toner hopper to the
developing unit. /
Transports waste toner to
the waste toner section.
TM2
TM2
Toner motor 2
Synchronous
motor
motor
Transports toner in the
toner bottle to the toner
hopper.
toner bottle to the toner
hopper.
TRM
TRM
Resist roller front drive
motor
motor
Stepping motor
Drives the paper transport
roller 15.
roller 15.
Normal speed
mode/ Resist roller
front paper
transport timing
control (Warp
amount control)
mode/ Resist roller
front paper
transport timing
control (Warp
amount control)
TURM
TURM
Transfer separation
motor
motor
DC brush motor
Drives and separates the
transfer belt.
transfer belt.
When executing
the process
correction and
detecting a jam,
the transfer belt is
separated from
the OPC drum.
the process
correction and
detecting a jam,
the transfer belt is
separated from
the OPC drum.
VPM
VPM
Vertical paper transport
motor
motor
Stepping motor
Drives the paper transport
rollers 4 and 13.
rollers 4 and 13.
Normal speed
mode
mode
Code
Signal
name
Name
Type
Function/Operation
Active
condition
MODEL
NOTE
1
1
1
1
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