Sharp AR-M550 (serv.man21) Service Manual ▷ View online
AR-M550/M620 SIGNAL NAME LIST 14 - 9
STLD
SPF document tray lower limit
detection signal
detection signal
SPF document tray lower limit
detection
detection
Lower limit
11
15
SCN
STMPS
Stamp solenoid control signal
Stamp solenoid control
Stamp ON
1
48
SCN
STRBC
SPF paper transport clutch
control signal
control signal
SPF paper transport roller
brake clutch control
brake clutch control
ON
11
9
SCN
STRC
SPF paper transport clutch
control signal
control signal
SPF paper transport clutch
control
control
ON
11
8
SCN
STRRBC
SPF paper transport resist
brake clutch control signal
brake clutch control signal
SPF paper transport resist
brake clutch control
brake clutch control
ON
12
20
SCN
STRRC
SPF paper transport resist
clutch control signal
clutch control signal
SPF paper transport resist
clutch control
clutch control
ON
12
19
SCN
STSET
Stamp identification signal
Stamp Yes/No detection
Stamp
available
1
47
SCN
STUD
SPF document tray upper limit
detection signal
detection signal
SPF document tray upper limit
detection
detection
Upper limit
12
14
SCN
SYNC
LSU horizontal sync detection
signal
signal
LSU horizontal sync detection
(BD sensor signal)
(BD sensor signal)
—
—
22
29
PCU
T1LUD
Paper feed tray upper limit
detection signal (Paper feed
tray 1)
detection signal (Paper feed
tray 1)
Paper feed tray upper limit
(Paper feed tray 1)
(Paper feed tray 1)
Upper limit
—
14
13
PCU
T1LUM
Paper tray lift-up motor control
signal (Paper feed tray 1)
signal (Paper feed tray 1)
Paper tray lift-up control (Paper
feed tray 1)
feed tray 1)
Stop
Up
14
1
PCU
T1PED
Paper empty detection signal
(Paper feed tray 1)
(Paper feed tray 1)
Paper presence detection
(Paper feed tray 1)
(Paper feed tray 1)
Paper
empty
empty
Paper
present
14
15
PCU
T1PFC
Paper feed clutch control signal
(Paper feed tray 1)
(Paper feed tray 1)
Paper feed clutch control
(Paper feed tray 1)
(Paper feed tray 1)
Paper
transport
—
17
4
PCU
T1PPD
Paper pass detection signal
(Paper feed tray 1)
(Paper feed tray 1)
Paper pass detection from
paper feed tray 1
paper feed tray 1
Paper pass
—
25
3
PCU
T1PUS
Paper pick-up solenoid control
signal (Paper feed tray 1)
signal (Paper feed tray 1)
Paper pickup solenoid control
(Paper feed tray 1)
(Paper feed tray 1)
Roller UP
Paper feed
14
7
PCU
T1SPD
Paper remaining quantity
detection signal (Paper feed
tray 1)
detection signal (Paper feed
tray 1)
Paper remaining quantity
detection (Paper feed tray 1)
detection (Paper feed tray 1)
—
Remaining
paper
quantity
66% or less
14
16
PCU
T2LUD
Paper tray upper limit detection
signal (Paper feed tray 2)
signal (Paper feed tray 2)
Paper tray upper limit detection
(Paper feed tray 2)
(Paper feed tray 2)
Upper limit
—
14
21
PCU
T2LUM
Paper tray lift-up motor control
signal (Paper feed tray 2)
signal (Paper feed tray 2)
Paper tray lift-up motor control
(Paper feed tray 2)
(Paper feed tray 2)
Stop
Up
14
2
PCU
T2PED
Paper empty detection signal
(Paper feed tray 2)
(Paper feed tray 2)
Paper presence detection
(Paper feed tray 2)
(Paper feed tray 2)
Paper
empty
empty
Paper
present
14
23
PCU
T2PFC
Paper clutch control signal
(Paper feed tray 2)
(Paper feed tray 2)
Paper feed clutch control
(Paper feed tray 2)
(Paper feed tray 2)
Paper
transport
—
12
3
PCU
T2PUS
Paper pickup solenoid control
signal (Paper feed tray 2)
signal (Paper feed tray 2)
Paper pickup solenoid control
(Paper feed tray 2)
(Paper feed tray 2)
The roller
lifts up.
Paper feed
14
8
PCU
T2SPD
Paper remaining quantity
detection signal (Paper feed
tray 2)
detection signal (Paper feed
tray 2)
Paper remaining quantity
detection (Paper feed tray 2)
detection (Paper feed tray 2)
—
Remaining
paper
quantity
66% or less
14
22
PCU
TANSET
Paper feed tray 1/2 (Tandem
tray) detection signal
tray) detection signal
Paper feed tray 1, 2 (Tandem
tray) insertion detection
tray) insertion detection
Pull out
Insert
17
25
PCU
TCBIAS
Transfer belt cleaning output
control signal (ON/OFF)
control signal (ON/OFF)
Transfer belt cleaning bias ON/
OFF control
OFF control
ON
OFF
7
22
PCU
TCBPWM
Transfer belt cleaning output
control signal (PWM)
control signal (PWM)
Transfer belt cleaning bias
output voltage PWM control
output voltage PWM control
—
—
7
18
PCU
TCS
Toner density detection signal
Toner density detection
—
—
12
16
PCU
TFSD
Toner remaining quantity
detection signal
detection signal
Toner hopper remaining
quantity detection
quantity detection
Remaining
quantity
large
Remaining
quantity
small
11
11
PCU
TH
LCD temperature sensor signal LCD temperature detection
—
—
1
92
SCN
TH-CL
OPC drum cleaner
temperature sensor signal
temperature sensor signal
OPC drum cleaner peripheral
temperature detection
temperature detection
—
—
8
12
PCU
TH-DV
Developing temperature
detection signal
detection signal
Developing section
temperature detection
temperature detection
—
—
12
30
PCU
TH-EX
Paper exit unit temperature
sensor
sensor
Paper exit unit peripheral
temperature detection
temperature detection
—
—
5
31
PCU
Signal name
Name
Function/Operation
Connector level
Connector
No.
Pin No.
PWB
name
Remark
"L"
"H"
AR-M550/M620 SIGNAL NAME LIST 14 - 10
THPS1
Transfer belt contact/
separation home position
sensor 1
separation home position
sensor 1
Transfer belt separation home
position detection 1
position detection 1
—
Contact
7
6
PCU
Not used.
THPS2
Transfer belt contact/
separation home position
sensor 2
separation home position
sensor 2
Transfer belt separation home
position detection 2
position detection 2
—
Contact
7
14
PCU
TH-RA
Machine temperature detection
signal
signal
Machine temperature detection
—
—
21
10
PCU
THV+PWM
Transfer charger output control
signal (THV)
signal (THV)
Transfer charger output control
(PWM control)
(PWM control)
—
—
15
8
PCU
THV+REM
Transfer charger control signal
(THV)
(THV)
Transfer charger ON/OFF
control
control
ON
OFF
15
9
PCU
TLS
Waste toner pipe lock detection
signal
signal
Waste toner pipe lock detection
—
Lock (Tilt)
8
16
PCU
TM1A
Toner motor 1 control signal
Toner motor 1 ON/OFF control
—
—
11
1
PCU
TM1B
Toner motor 1 control signal
Toner motor 1 ON/OFF control
—
—
11
3
PCU
TM2A
Toner motor 2 control signal
Toner motor 2 ON/OFF control
—
—
11
5
PCU
TM2B
Toner motor 2 control signal
Toner motor 2 ON/OFF control
—
—
11
7
PCU
TNCA
Waste toner full detection
signal
signal
Waste toner full detection
—
—
11
12
PCU
Not used.
TRC_LCC
LCC paper feed timing signal
LCC paper feed timing control
(Output from PCU)
(Output from PCU)
—
—
18
13
PCU
TRMA
Transfer roller 15 drive motor
control signal (Phase A)
control signal (Phase A)
Transport roller 15 drive motor
control
control
—
—
10
17
PCU
TRMB
Transfer roller 15 drive motor
control signal (Phase B)
control signal (Phase B)
Transport roller 15 drive motor
control
control
—
—
10
19
PCU
TRMXA
Transfer roller 15 drive motor
control signal (Phase /A)
control signal (Phase /A)
Transport roller 15 drive motor
control
control
—
—
10
18
PCU
TRMXB
Transfer roller 15 drive motor
control signal (Phase /B)
control signal (Phase /B)
Transport roller 15 drive motor
control
control
—
—
10
20
PCU
TSGOUT
Toner den misty sensor gain
control signal
control signal
Toner density sensor gain
control
control
—
—
12
20
PCU
TURM
Transfer separation motor
control signal
control signal
Transfer unit separation control
Stop
Contact/
Release
Release
7
16
PCU
TXD_CCD1
Serial I/F data (CCD)
Serial I/F data (Scanner control
PWB - CCD)
PWB - CCD)
—
—
1
63
SCN
TXD_CCD2
Serial I/F data (CCD)
Serial I/F data (Scanner control
PWB - CCD)
PWB - CCD)
—
—
10
14
SCN
TXD_FIN
Serial I/F data (Finisher)
Serial I/F data (PCU PWB -
Finisher)
Finisher)
—
—
17
11
PCU
TXD_LCC
Serial I/F data (LCC)
aerial I/F data (Controller -
Scanner control PWB)
Scanner control PWB)
—
—
18
3
PCU
TXD_SCN
Serial I/F data (Scanner control
PWB)
PWB)
Serial I/F data (Controller -
Scanner control PWB)
Scanner control PWB)
—
—
9
8
SCN
VCCW_SCN Scanner flash ROM write
protect signal
Scanner flash ROM write
protect
protect
Write
enable
9
10
SCN
VFM-BKL
Exhaust fan motor control
signal (Rear left)
signal (Rear left)
Exhaust fan motor control
signal (O
signal (O
3
exhaust, process
section heat exhaust)
Max. force
of wind
Stop
5
22
PCU
VFM-BKR
Exhaust fan motor control
signal (Rear right)
signal (Rear right)
Exhaust fan motor control
signal (Exhaust, duplex (ADU)
section cooling)
signal (Exhaust, duplex (ADU)
section cooling)
Max. force
of wind
Stop
6
17
PCU
VFM-EX1
Exhaust fan motor control
signal (LSU top plate front
side)
signal (LSU top plate front
side)
Exhaust fan motor control
signal (O
signal (O
3
exhaust, process
section heat exhaust)
Max. force
of wind
Stop
5
4
PCU
VFM-EX2
Exhaust fan motor control
signal (LSU top plate center)
signal (LSU top plate center)
Exhaust fan motor control
signal (O
signal (O
3
exhaust, process
section heat exhaust)
Max. force
of wind
Stop
5
10
PCU
VFM-EX3
Exhaust fan motor control
signal (LSU top plate rear side)
signal (LSU top plate rear side)
Exhaust fan motor control
signal (O
signal (O
3
exhaust, process
section heat exhaust)
Max. force
of wind
Stop
5
16
PCU
VIDEO
Image signal
Image signal to LSU
—
—
20
21
PCU
VIDEOin-
Image signal
Image signal from controller to
PCU PWB
PCU PWB
—
—
9
21
PCU
Signal name
Name
Function/Operation
Connector level
Connector
No.
Pin No.
PWB
name
Remark
"L"
"H"
AR-M550/M620 SIGNAL NAME LIST 14 - 11
∗∗∗∗
1: Multi-stage tray vertical size detection
∗∗∗∗
2: Options
VIDEOin+
Image signal
Image signal from controller to
PCU PWB
PCU PWB
—
—
9
23
PCU
VPMA
Paper transport motor control
signal (Phase A)
signal (Phase A)
Paper vertical transport motor
control (Phase A)
control (Phase A)
—
—
10
21
PCU
VPMB
Paper transport motor control
signal (Phase B)
signal (Phase B)
Paper vertical transport motor
control (Phase B)
control (Phase B)
—
—
10
23
PCU
VPMXA
Paper transport motor control
signal (Phase /A)
signal (Phase /A)
Paper vertical transport motor
control (Phase /A)
control (Phase /A)
—
—
10
22
PCU
VPMXB
Paper transport motor control
signal (Phase /B)
signal (Phase /B)
Paper vertical transport motor
control (Phase /B)
control (Phase /B)
—
—
10
24
PCU
VRB
Laser power control signal
Laser power control
—
—
22
17
PCU
WAKE UP
Reset trigger signal from
energy-saving mode
energy-saving mode
Reset trigger from energy
saving mode
saving mode
Energy-
save reset
9
11
SCN
WHPR2
Dehumidifier heater power
relay 2 control signal
relay 2 control signal
Dehumidifier heater control
Relay ON
Relay OFF
19
18
PCU
XH
Touch panel area identification
signal (Vertical direction)
signal (Vertical direction)
Touch panel area identification
(Vertical direction) X axis
(Vertical direction) X axis
—
—
1
96
SCN
XL
Touch panel coordinates signal
(Vertical direction)
(Vertical direction)
Touch panel coordinates
identification (Vertical direction)
X axis
identification (Vertical direction)
X axis
—
—
1
46
SCN
YH
Touch panel area identification
signal (Horizontal direction)
signal (Horizontal direction)
Touch panel area identification
(Horizontal direction) Y axis
(Horizontal direction) Y axis
—
—
1
45
SCN
YL
Touch panel coordinate signal
(Horizontal direction)
(Horizontal direction)
Touch panel coordinates
identification (Horizontal
direction) Y axis
identification (Horizontal
direction) Y axis
—
—
1
95
SCN
Vertical size detection: Connector level
Paper size
Multi-stage tray 1
M1SS1
M1SS2
M1SS3
M1SS4
AB series
Inch series
China series
Multi-stage tray 2
M2SS1
M2SS2
M2SS3
M2SS4
1
L
L
H
L
B5
Extra
K16
2
H
L
H
L
A4
A5R
LT
INVR
A4
A5R
3
H
L
L
L
B5R
EX-R
K16R
4
H
H
L
L
A4R
LTR
A4R
5
L
H
L
L
Foolscap
Extra
Foolscap
6
L
H
L
H
B4
LGL
K8
7
L
L
L
H
A3
WLT
0
H
H
H
H
Tray not installed
No.
CV_SIZE3
CV_SIZE2
CV_SIZE1
CV_SIZE0
Paper size
0
0
0
0
0
none
1
0
0
0
1
A3
2
0
0
1
0
A4
3
0
0
1
1
LT
4
0
1
0
0
B4
5
0
1
0
1
LG
6
0
1
1
0
WLT
7
0
1
1
1
INV
8
1
0
0
0
B5
9
1
0
0
1
Extra
10
1
0
1
0
A5
11
1
0
1
1
F4
12
1
1
0
0
A4R
13
1
1
0
1
B5R
14
1
1
1
0
LTR
15
1
1
1
1
A5R
Signal name
Name
Function/Operation
Connector level
Connector
No.
Pin No.
PWB
name
Remark
"L"
"H"
Memo
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