Sharp MX-5500N / MX-6200N / MX-7000N (serv.man44) Service Manual ▷ View online
MX-7000N EXTERNAL VIEW AND INTERNAL STRUCTURE 5 – 13
L. Fans and filters
Signal name
Name
Type
Function/Operation
CFM
Charger suction fan motor
Sirocco fan
Supplies air to the charging unit of the OPC drum unit (BK).
CONFM
MFP cooling fan motor
Axial-flow fan
Cools the MFP PWB.
DTBFM
Bottle cooling fan motor
Sirocco fan
Cools the toner bottle.
FCFM
Fusing cooling fan
Sirocco fan
Cools the fusing unit.
FUFM_R
Fusing exhaust fan
Axial-flow fan
Cools the fusing unit.
HDDFM
HDD cooling fan motor
Axial-flow fan
Cools the HDD.
LSUFM
LSU cooling fan motor
Axial-flow fan
Cools the polygon motor.
OZFM1
Ozone fan motor 1
Sirocco fan
Exhausts ozone.
OZFM2
Ozone fan motor 2
Sirocco fan
Exhausts ozone.
OZFM3
Ozone fan motor 3 (Individual control)
Sirocco fan
Exhausts ozone.
POFM_F
Paper exit cooling fan motor (F side)
Axial-flow fan
Cools the fusing unit.
POFM_U
Paper exit cooling fan motor (center)
Axial-flow fan
Cools the fusing unit.
PSFM
Power cooling fan motor
Axial-flow fan
Cools the power unit.
SPFFAN
DSPF cooling fan motor
Axial-flow fan
Cools the motors and the clutches.
VFM_C
Main inside ventilation fan motor (center)
Axial-flow fan
Discharges air from the machine.
VFM_R
Machine ventilation fan motor (right)
Sirocco fan
Discharges air from the machine.
No.
Name
Function/Operation
1
Toner filter (CL)
Prevents dispersing of toner.
2
Ozone filter
Absorbs ozone generated in the image process section.
3
Toner filter (BK)
Prevents dispersing of toner.
4
Dust filter
Absorbs dusts in sucked air.
5
Paper exit filter
Deodorizes odor generated in the fusing unit.
2
HDDFM
OZFM3
OZFM1
OZFM2
LSUFM
SPFFAN
VFM_R
1
PSFM
VFM_C
POFM_F
POFM_U
5
4
FUFM_R
CFM
CONFM
3
FCFM
DTBFM
MX-7000N EXTERNAL VIEW AND INTERNAL STRUCTURE 5 – 14
M. PWB
No.
Name
Function/Operation
Note
1
DSPF CCD PWB
Scans document images.
2
DSPF flash PWB
Program ROM PWB for DSPF
3
DSPF control PWB
Control PWB for DSPF
4
DSPF driver PWB
Driver PWB for DSPF
5
DSPF CL inverter PWB
Drives the copy lamp.
6
RD I/F PWB
Detects each sensor in the right door unit.
7
CCD PWB
Scans the document images.
8
Document detection light receiving PWB
Outputs the document size detection signal.
9
Power_SW_PWB
Outputs the ON/OFF control signal of the DC power source.
10
MFP OPE-JPWB
Outputs the key operation signal.
11
CL inverter PWB
Drives the xenon lamp.
12
Document detection light emitting PWB
Emits the document size detection LED lights.
13
DSPF memory PWB
Temporary storage of back surface image data
14
Scanner control PWB
Controls the scanner section.
15
1TC PWB
Outputs the primary transfer voltage.
16
HL PWB
Controls the heater lamp.
17
PCU PWB
Controls the engine section.
18
DRIVER PWB
Drives the motor and related sections.
19
MC PWB
Generates a high voltage for the main charger and the developing bias
voltage.
voltage.
20
DOCC PWB
Recognizes the document control pattern.
21
Mother PWB
Interfaces the MFPcnt PWB and other PWB.
22
MFP cnt PWB
Controls images and the whole machine.
23
AC power source PWB
Controls the power source on the primary side.
24
SUB power source PWB
Supplies the power of the controller.
25
C3SS PWB
The paper size of tray 3 is detected.
26
C4SS PWB
The paper size of tray 4 is detected.
27
DC power source PWB
Outputs the secondary side voltage.
28
2TC PWB
Outputs the secondary transfer voltage.
Drum
LSU
6
9
7
40
16
20
20
21
22
10
39
28
37
38
13
11
2
3
1
5
14
15
17
17
18
19
36
41
23
25
24
26
29
35
30
31
32
33
34
27
12
4
8
DV
DV (BK)
42
MX-7000N EXTERNAL VIEW AND INTERNAL STRUCTURE 5 – 15
N. Gate
29
LSU CNT PWB
Controls the LSU.
30
LD PWB1
Controls laser lighting. (1 beam)
31
LD PWB2
Controls laser lighting. (2 beams)
32
Thermistor PWB 2
Detects the temperature in the LSU.
33
Thermistor PWB 1
Detects the temperature in the LSU.
34
BD PWB
Detects the laser sync signal.
35
Drum phase detection PWB
Detects the phase of each color drum.
36
Tandem sensor PWB
Detects the tandem tray YES/NO and detects paper.
37
LVDS PWB
Outputs the LCD display signal.
MFP cnt is the source of output.
38
LCD INV PWB
Drives the LCD backlight.
39
PTC PWB
Outputs the pre-transfer voltage.
40
Paper exit temperature detection PWB
Detects the temperature of the paper exit unit.
41
Memory PWB
42
DVK DRIVER PWB
Controls the toner mixing motor.
No.
Name
Function/Operation
1
ADU reverse gate
Selects the paper route among the path to the inner tray and the path to the right tray and the path to the
duplex (ADU) section.
duplex (ADU) section.
2
Right paper exit gate
Selects the paper route between the path to the duplex (ADU) section and the path to the right tray.
No.
Name
Function/Operation
Note
2
1
MX-7000N EXTERNAL VIEW AND INTERNAL STRUCTURE 5 – 16
O. Fuse/Thermostat
No.
Signal name
Name
Specifications
Function/Operation
Section
1
TS_EX
External thermostat sub
Prevention against overheating of the external heat roller
Fusing unit
2
TS_EX
External thermostat main
Prevention against overheating of the external heat roller
Fusing unit
3
TS_LM
Lower thermostat
Prevention against overheating of the lower heat roller
Fusing unit
4
TS_UM
Upper thermostat main
Prevention against overheating of the upper heat roller main
Fusing unit
5
TS_US
Upper thermostat sub
Prevention against overheating of the upper heat roller sub
Fusing unit
6
F1
Fuse
20A 125V
AC power source PWB
7
F2
Fuse
20A 125V
AC power source PWB
8
F3
Fuse
T2AH250V
AC power source PWB
9
F4
Fuse
T2AH250V
AC power source PWB
10
F1
Fuse
1.25A 250V
CL inverter PWB
11
F208
Fuse
250V 6.3A
DC power source PWB
12
F205
Fuse
250V 6.3A
DC power source PWB
13
F206
Fuse
250V 6.3A
DC power source PWB
14
F207
Fuse
250V 6.3A
DC power source PWB
15
F201
Fuse
250V 6.3A
DC power source PWB
16
F202
Fuse
250V 6.3A
DC power source PWB
17
F203
Fuse
250V 6.3A
DC power source PWB
18
F204
Fuse
250V 6.3A
DC power source PWB
19
F2
Fuse
250V 3.15A
DC power source PWB
20
F3
Fuse
250V 5A
DC power source PWB
21
F1
Fuse
250V 8A
DC power source PWB
22
F61
Fuse
250V 2A
SUB power source PWB
23
F2
Fuse
250V 5A
SUB power source PWB
24
F1
Fuse
250V 5A
SUB power source PWB
25
F101
Fuse
250V 1A
DC power source PWB
26
F102
Fuse
125V 20A
DC power source PWB
27
F103
Fuse
250V 8A
DC power source PWB
28
F301
Fuse
250V 5A
DC power source PWB
11
5
3
4
1
2
2
8
9
200V
120V
6
22
23
24
7
16
17
18
13
14
15
10
12
21
19
20
15
26
28
28
25
27
17
18
12
16
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