DOWNLOAD Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man27) Service Manual ↓ Size: 1.73 MB | Pages: 5 in PDF or view online for FREE

Model
MX-4100N MX-4101N MX-5000N MX-5001N (serv.man27)
Pages
5 Few pages! See other manuals at the bottom of the first or last page.
Size
1.73 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Service Manual-Details Of Each Section-(H)LSU Section
File
mx-4100n-mx-4101n-mx-5000n-mx-5001n-sm27.pdf
Date

Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man27) Service Manual ▷ View online

MX-4101N  LSU SECTION  H – 1
MX-4101N
Service Manual
 
[H] LSU SECTION
1.  Electrical and mechanism relation diagram
PGM
LSU_FAN
CCFM
LSUSS
6
6
9
10
6
8
5
1
4
3
2
7
6
C
N
1
C
N
7
C
N
3
C
N
4
S
0
6
B
-X
A
S
K
-1
C
N
4
S
2
0
B
-P
H
D
S
S
B
2
8
B
-P
H
D
S
S
C
N
5
C
N
5
5
0
1
5
7
1
-5
0
0
7
5
0
1
1
9
0
-5
0
1
7
S
2
4
B
-P
H
D
S
S
B
2
4
B
-P
H
D
S
S
VSYNC_K_P
27
22
VSYNC_Y_P
23
VSYNC_M_P
24
VSYNC_M_N
VSYNC_K_N
25
VSYNC_C_N
26
VSYNC_C_P
MOTHER PWB
21
VSYNC_Y_N
/TRANS_RST
17
JOBEND_INT
11
20
TH_LSU
19
/PCU_TRG
16
/RST_D
A
T
10
LSU_ASIC_RST
13
/TRANS_D
A
T
18
D-GND
14
/SCK_LSU
15
D-GND
6
5VLD
12
D-GND
4
P-GND
2
24V
7
D-GND
55
V
C
N
1
3.3V
CN
8
D-GND
DT_Y1-
27
/LDERR_Y
20
DT_Y2+
22
D-GND
25
DT_Y1-
HSYNC_LSU_N
45
46
2
D-GND
D-GND
CH4_N
CH4_P
31
ECLK_LSU_N
1
ECLK_LSU_P
D-GND
D-GND
HSYNC_LSU_P
6
4
3
5
HSYNC_LSU_N
2
4
9
7
8
D-GND
22
HSYNC_LSU_P
2
3
ECLK_LSU_P
2
0
D-GND
21
CH4_P
18
ECLK_LSU_N
1
9
10
D-GND
1
7
3
D-GND
5
40
3.3V
CN
2
n
L
DERR_K
5V
CN
4
D-GND
3
4
16
14
VREF_K1
18
nE
N
B
_
K
VREF_K2
37
33
DT_Y1+
3
5
23
n
L
DERR_Y
2
6
18
16
29
CH4_N
CH1_P
CH1_N
CH3_N
CH3_P
CLCLK_N
CLCLK_P
D-GND
4
D-GND
9
10
7
CH2_N
D-GND
D-GND
CH2_P
LSU PWB
VREF_M1
DT_M1-
DT_C1-
DT_M1+
/LDERR_C
/ENB_C
/LDERR_M
/TRANS_RST
JOBEND_INT
LSU_ASIC_RST
D-GND
DT_C1+
17
14
11
13
14
12
15
12
10
16
24
11
8
22
21
19
20
6
5
17
14
VSYNC_K_P
VSYNC_C_P
15
2
3
CH0_P
VSYNC_M_N
17
18
D-GND
VSYNC_M_P
VSYNC_Y_P
CH0_N
CH1_N
CH1_P
CH2_N
CH0_N
CH0_P
D-GND
D-GND
23
20
13
/PCU_TRG
28
VSYNC_Y_N
1
16
VSYNC_C_N
19
11
VSYNC_K_N
12
TH_LSU
8
9
10
7
6
5V_LD
D-GND
5V_LD
DT_K1+
D-GND
5
1
2
3
4
5
6
24V
P-GND
/SCK_LSU
5VLD
D-GND
D-GND
/SH_C2
/SH_C1
/TRANS_D
A
T
D-GND
/RST_D
A
T
39
VREF_C1
VREF_C2
DT_C2+
32
DT_M2+
D-GND
DT_M2-
DT_Y1+
VREF_Y1
29
VREF_Y2
VREF_M2
30
24
28
26
DT_C1+
2
3
36
40
37
35
44
41
DT_C1-
GND
4
2
n
S
H_YMC2
4
4
GND
4
6
GND
n
S
H_YMC1
VREF_K2
VREF_K1
D-GND
DT_K2-
6
8
11
13
5
33
42
34
D-GND
38
DT_K1-
D-GND
DT_K2+
/SH_K1
/SH_K2
/LDERR_K
10
D-GND
D-GND
DT_C2-
/ENB_K
17
43
49
48
50
47
15
9
GND
1
nS
H
_
K
2
8
13
4
6
14
12
12
2
+5V
5
0
nS
H
_
K
1
DT_K1+
DT_K1-
9
GND
11
48
+5V
CH2_P
15
D-GND
D-GND
18
CLCLK_N
16
DT_Y2-
D-GND
13
D-GND
CLCLK_P
CH3_N
CH3_P
DT_K2-
3
GND
DT_K2+
7
21
VREF_C1
2
4
n
L
DERR_C
2
0
GND
2
5
VREF_C2
2
2
DT_C2+
1
7
n
E
NB_YMC
3
8
DT_C2-
1
5
GND
1
9
DT_M1+
4
7
n
L
DERR_M
3
2
VREF_M1
3
6
DT_M1-
4
5
GND
4
9
43
VREF_M2
3
4
DT_M2+
4
1
VREF_Y1
DT_Y2-
2
7
GND
3
1
GND
LD PWB
VREF_Y2
2
8
DT_Y2+
30
DT_M2-
3
9
GND
LDCHK_2
2
LDCHK_1
1
21
LDCHK_2
19
LDCHK_1
CN20
P
R
P
R
1
1
2
2
1
1
2
2
SM-2Pin
SM-2Pin
B7B-PH-K-S
INT24V1
1
/LSUSS_B
3
PCU PWB
NC
2
CN2
B6B-PH-K-S
B6B-PH-K-S
/BREAK
/ST
A
R
T
24V1
4
5
P-GND
POL
YCLK
/LOCK
/ST
AR
T
P-GND
/BREAK
6
2
4
/LOCK
3
POL
YCLK
1
24V1
3
5
6
2
1
CN1
B4B-PH-K-S
B7B-PH-K-S
B4B-PH-K-S
LSUTH1
1
2
3
NC
NC
2
D-GND
4
3
4
7
6
5VN
D-GND
1
NC
5
LSUTH1
nB
D
2
3
D-GND
5VN
D-GND
nB
D
D-GND
1
4
D
-GND
SM-3Pin
1
2
3
P-GND
6
CCFM_V
4
3
1
2
CCFM_LD
7
CN6
B3B-PH-K-S
GND
3
/FANRDY
24V
2
1
MX-4101N  LSU SECTION  H – 2
2.  Operational descriptions
A. Outline
Image data sent from the image process circuit through the PCU
are converted into laser beams which are radiated to the surface of
the OPC drum.
In this model, 2-laser system is employed where 2 lines of laser for
one color are radiated. The LSU unit is composed of the optical ele-
ment from laser to the polygon mirror, the primary system including
the mirror which assures light path, and the main scanning system.
B. Composition
(Primary system)
(Scanning system)
Main scanning direction
Signal name
Name
Function/Operation
CCFM
Process air inlet fan motor
Cools charger section of the process.
PGM
Polygon motor
Reflects the laser beams at constant-speed rotating.
LSU_FAN
LSU cooling fan motor
Cools the section LSU.
LSUSS
LSU shutter solenoid
Opens/closes the LSU shutter.
No.
Name
Function/Operation
1
LD PWB
Controls flashing of laser beams and the output values.
2
Cylindrical lens
Converges laser beams to focus.
3
f
θ lens 1
Laser beams are refracted so that the laser scanning speed at the both ends of the OPC drum is the same as 
that at the center.
4
f
θ lens 1
5
Reflection mirror
Assures the optical path for laser.
6
Cylindrical lens
Collects the laser beams, and focuses it on the OPC drum.
7
Collective lens  for BD
Converges laser beams to the BD PWB.
8
BD PWB
Detects the timing for starting laser scanning.
9
LSU PWB
Laser beams are controlled and the polygon motor control signal is generated according to the PCU PWB 
control signal and image data.
10
LSU thermistor
Measures the temperature in LSU.
LD2
LD1
LD1
LD2
LD2
LD1
LD2
LD1
LD2
LD1
LD2
LD1
BK
Front
Rear
C M Y
Scanning
direction
Scanning
direction
MX-4101N  LSU SECTION  H – 3
(Writing position on paper)
(On the polygon motor)
C. Outline of LSU specifications
3.  Disassembly and assembly
Do not disassemble the LSU unit. If it is unavoidable to disassem-
ble and repair the LSU unit, strictly observe the following proce-
dures described below and never perform the other procedures. If
this precaution is violated, the safety is not assured.
A. LSU
1)
Remove the left cabinet rear lower and the left cabinet. [Refer
to "Left cabinet lower, left cabinet" in "External view."]
2)
Remove the waste toner box.
3)
Remove the LSU left plate PA.
Model
Number of 
mirror surface
Rotating 
speed
Bearing
Remarks
MX-4100/4101
7 surfaces
44544rpm
AIR
Effective scan width :
307mm
Resolution:
1200dpi
Beam diameter:
Main scan = 50 to 65µm, Sub scan = 60 to 75µm
Laser power:
Max. 0.255mW
LD wavelength:
770 to 795nm
LD2
LD1
LD2
LD1
LD2
LD1
LD1
LD2
Front
Rear
Scanning
direction
Paper exit direction
a
Parts
a
Polygon motor
2
1
MX-4101N  LSU SECTION  H – 4
4)
Remove the LSU slant adjustment plate screw (A), and loosen
the screw (B).
Remove the LSU shaft fixing plate. Remove the screw.
5)
Shift the front side of the LSU shaft from (A) to (B), and remove
the LSU shaft.
6)
Disconnect the connector, and remove the LSU.
(1) Polygon motor
1)
Remove the LSU.
2)
Remove the screws, and the LSU CNT PWB cover R.
3)
Remove the connector and the screws, then remove the fan
cover.
4)
Remove the screws, then lift up the LSU CNT PWB cover F
(A).
Remove the screws, and lift up the polygon motor unit (B).
5)
Remove the connector and the screws, then remove the poly-
gon motor.
* When installing, do not touch the moving section of the poly-
gon mirror and the mirror surface.
A
B
B
A
2
3
1
A
B
1
2
Page of 5
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Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man27) Service Manual ▷ Download

  • DOWNLOAD Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man27) Service Manual ↓ Size: 1.73 MB | Pages: 5 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man27) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man27) Copying Equipment. Information contained in Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man27) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.