Read Sharp MX-6500N / MX-7500N (serv.man27) Service Manual online
MX-7500N OPERATIONAL DESCRIPTIONS 13 – 4
(2)
Upper transport section
Signal name
Name
Function/Operation
SCOV
DSPF upper door open/close sensor
Detects open/close of the upper door.
SLUM
DSPF lift-up motor
Lifts up or moves down the document feed tray.
SPED1
DSPF document upper limit sensor
Detects the upper limit of the DSPF document.
SPED2
DSPF document empty sensor
Detects document empty in the document feed tray.
SPFC
DSPF document feed clutch
Controls ON/OFF of the rollers in the document feed section.
SPLS1
DSPF document length detection short sensor
Detects the document length of the document feed tray upper.
SPLS2
DSPF document length detection long sensor
Detects the document length of the document feed tray upper.
SPPD1
DSPF document pass sensor 1
Detects pass of the document.
SPRDMD
DSPF document random sensor
Detects the document size in random document feed.
SPUM
DSPF document feed motor
Drives the rollers and transport rollers in the document feed section.
SPWS
DSPF document width sensor
Detects the document width of the document feed tray upper.
STLD
DSPF document feed tray lower limit sensor
Detects the lower limit of the document feed tray.
STUD
DSPF document feed tray upper limit sensor
Detects the upper limit of the document feed tray.
No.
Name
Function/ Operation
1
Pickup roller
Picks up a document and feeds it to the document feed roller.
2
Document feed roller
Performs the document feed operation of documents.
3
Separation roller
Separate a document to prevent against double-feed.
4
Torque limiter
A fixed level of resistance is always provided for rotation of the separation roller to prevent double feed.
Signal name
Name
Function/Operation
SPPD2
DSPF document pass sensor 2
Detects pass of the document.
SPUM
DSPF document feed motor
Drives the rollers, transport rollers and transport rollers in the document feed section.
STRC
DSPF transport roller clutch
Controls ON/OFF of the transport roller 1.
STRRC
DSPF No.1 registration roller clutch
Controls ON/OFF of No. 1 registration roller.
No.
Name
Function/ Operation
1
No. 1 registration roller (Drive)
Performs registration of document transport.
2
Transport roller 1 (Drive)
Transports document from No. 1 registration roller to No. 2 registration roller.
D_SPPD2
1
SGND
2
3
3
5V
B3B-PH-K-S
24V_TR
D_SPFM
B
D_SPF
M/B
/D_STMP
24V_TR
/D_STRRBC
24V_TR
/D_STRRC
/D_STRRC
1
SGND
D_STSET
24V_TR
PGND
F
AN_LOCK
NC(
F
AN
_PWM)
/D_SRRC
24V_TR
D_SPF
M/A
D_SPF
MA
24V_SPF
M
6
7
8
/D_SRRBC
24V_TR
CN9
24V_SPF
M
3
4
5
2
13
14
15
16
9
10
11
12
19
20
NC
24V_TR
NC
NC
/D_STRC
23
24
17
18
25
26
27
28
NC
21
22
B
2
8
B-PHDSS-B
/D_STRC
2
1
24V_TR
1
SMR-0
2V
-N
SMP-0
2
V
-NC
2
4
5
6
D_SPUMB
D_SPUM/B
B6B-PH-K-S
D_SPUM/A
D_SPUMA
24V_SPUM
24V_SPUM
1
2
3
2
1
24V_TR
1
2
6
10
12
4
D_SOCD
GND
5V
5V
5V
5V(sensor)
D_SPPD4
D_SPPD5
GND
D_SPPD2
D_SPPD3
GND
5V
GND
D_ROCD
5
7
9
11
17
5V(sensor)
GND
GND
14
16
18
15
1
2
3
8
CN1
B18B-PHDSS-B
13
DRIVER PWB
21
22
23
24
25
26
B
2
6
B
-PHDSS-B
PG
N
D
20
21
22
23
16
17
18
19
12
13
14
15
5
6
7
8
9
10
11
24
25
26
12
13
14
15
16
17
18
19
4
5
6
7
8
9
10
D_
SPO
M_
DIR
11
1
2
3
CN2
DSPF CNT PWB
B
2
6
B-PHDSS-B
20
24V
P
GND
24V
P
GND
24V
P
GND
D_
SPU
M_IN/B
D_SLUMA
D_
SPO
M_ENA
D_
SPO
M_
STEP
D_
SPO
M_
MODE
D_SULM/A
D_SLUMB
D_SLUM/B
D_SPOD
D_
SPU
M_INA
D_
SPU
M_IN/A
D_
SPU
M_INB
D_
SPU
M_INA
SGND
D_SPPD1
D_
SPU
M_IN/A
D_SOCV
D_SPOD
D_
SPU
M_INB
D_
SPU
M_IN/B
D_SLUMA
D_SULM/A
D_SLUMB
D_SLUM/B
D_
SPO
M_ENA
D_
SPO
M_
STEP
D_
SPO
M_
MODE
PG
N
D
24V
D_SPO
M_
DIR
24V
PG
N
D
24V
5V
SGND
D_SPFF
AN
SGND
D_SPPD1
D_RANDOM
D_SOCV
D_RANDOM
1
2
3
4
CN
8
SGND
D_SPFF
A
N
5V
PHNR-02-H+B
U02P-TR-P-H
PHNR-02-H
CN7
7
2
3
4
5
6
1
19
18
17
16
15
14
13
12
11
10
9
8
20
26
25
24
23
22
21
27
28
CN-3
B28B-PHDSS-B
D_SPUM_VREF
D_SPFM_VREF
D_SPOM_VREF1
D_SPOM_VREF2
D_SELA
D_SELB
D_SELC
D_SELOUT
3.3V
D_SPWS
AG
N
D
D_SPFC
D_SRRC
D_SRRBC
D_SPFM_M1
D_SPFM_M2
D_SPFM_CLK
D_SPFM_DIREC
D_STRRC
D_STRRBC
D_STMPS
/D_STRC
5V
SGND
5VPWM
SPED
5V0
SGND
(NC)
(NC)
7
2
3
4
5
6
1
19
18
17
16
15
14
13
12
11
10
9
8
20
26
25
24
23
22
21
25
28
D_SPUM_VREF
D_SPFM_VREF
D_SPOM_VREF1
D_SPOM_VREF2
D_SELA
D_SELB
D_SELC
D_SELOUT
3.3V
D_SPWS
A
GND
D_SPFC
D_SRRC
D_SRRBC
D_SPFM_M1
D_SPFM_M2
D_SPFM_CLK
D_SPFM_DIREC
D_STRRC
D_STRRBC
D_STMPS
/D_STRC
SGND
5VPWM
SPED
5V0
SGND
5V
27
(NC)
(NC)
B28B-PHDSS-B
CN-3
SPUM
STRRC
STRC
SPPD2
Click on the first or last page to see other MX-6500N / MX-7500N (serv.man27) service manuals if exist.