DOWNLOAD Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man24) Service Manual ↓ Size: 1.07 MB | Pages: 5 in PDF or view online for FREE

Model
MX-4100N MX-4101N MX-5000N MX-5001N (serv.man24)
Pages
5 Few pages! See other manuals at the bottom of the first or last page.
Size
1.07 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Service Manual-Details Of Each Section-(E)Scanner Section
File
mx-4100n-mx-4101n-mx-5000n-mx-5001n-sm24.pdf
Date

Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man24) Service Manual ▷ View online

MX-4101N  SCANNER SECTION  E – 1
MX-4101N
Service Manual
 
[E] SCANNER SECTION
1.  Electrical and mechanism relation diagram
Signal
Name
Function/Operation
CLI
Scanner lamp
MHPS
Scanner home position sensor
Detects the home position of the copy lamp unit.
MIM
Scanner motor
Drives the copy lamp unit and the mirror base unit.
No.
Name
Function/Operation
1
Pulley belt
Transmits the scanner motor power to the pulley.
2
Pulley
Drives the scanner drive wire.
3
Scanner drive wire
Transmits the scanner motor power to the copy lamp unit and the mirror base unit.
4
Reflector
Condenses the copy lamp light.
5
No. 2 mirror
6
No. 3 mirror
7
Lens
8
CCD PWB
9
Idle gear
Transmits the scanner motor drive power to the belt. 
MIM
1
2
3
MHPS
CLI
8
4
3
7
5
6
2
9
CL INVERTOR
CN4
CN5
CN9
CN2
6
7
8
9
AFE_CSTG
GND
1
GND
RE-
RE+
GND
2
CLK-
CLK+
GND
RD-
4
3
8
7
RD+
GND
RC-
RC+
GND
RA+
GND
RB-
RB+
23
24
31
32
25
RA-
GND
10V
10V
GND
GND
5V
5V
5V
3.3V
3.3V
3.3V
3.3V
AFE_RDD
AFE_WRD
AFE_SCLK
AFE_CS
/RES_CCD
A
D
GND
3.3V
3.3V
27
28
33
17
18
19
20
10
11
12
26
13
14
15
16
EHR-3
FI-RE41S-VF
FI-RE41S-VF
34
35
36
1
D
N
G
34
33
2
3
4
37
36
35
2
1
41
37
38
BM03B-GHS-TBT
RD+
GND
RE-
RE+
GND
AFE_CSTG
CCD PWB
MHPS
B4P-PH-H-S
5597-05CPB7F
29
30
21
22
5
D-GND
5597-05APB
5V
3
2
1
24VPD
5
4
3
2
1
CL
24VPD
1
2
GND
AFE_RDD
P-GND
P-GND
AFE_WRD
AFE_SCLK
AFE_CS
/RES_CCD
A
D
GND
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
GND
5V
5V
5V
GND
RB-
RB+
10V
10V
GND
RA-
27
CLK-
CLK+
GND
GND
RC-
RC+
GND
RA+
GND
28
29
41
40
39
38
32
31
30
16
15
26
25
24
23
10
9
22
21
14
13
20
19
18
17
6
5
MiM_A
MiM_B
MiM_/A
MiM_/B
12
11
1
P-GND
P-GND
CL
24VPD
24VPD
5
4
3
2
3
4
1
2
3
MHPS
D-GND
5V
GND
RD-
39
40
CR2 SCN-CNT PWB
MX-4101N  SCANNER SECTION  E – 2
2.  Operational descriptions
A. Outline
This section performs the following functions.
1)
Light is radiated to the document by the scanner lamp, and the
contrast of the reflected light is read by the CCD elements of
three lines of RGB to be converted into the image signal (ana-
log). 
2)
The image signals (analog) are converted into 10bit digital sig-
nals by the A/D converter.
3)
The image signals (digital) are sent to the image process sec-
tion (scanner control PWB).
B. Detail description
(1) Optical section drive
The optical section drive power is transmitted from the scanner
motor (MIM) to the drive pulley and the wire through the belt, to
drive the copy lamp unit and the mirror base which are attached by
the drive wires.
The scanner motor (MIM) is controlled by the drive signal sent from
the scanner control PWB.
(2) Scanner lamp drive
The scanner lamp (CLI) is driven by the scanner lamp drive voltage
generated in the CL inverter PWB according to the control signal
sent from the scanner control PWB.
(3) Image scan/color separation
Light is radiated to the document by the scanner lamp, and the con-
trast of the reflected light is read by the CCD elements of three
lines of RGB to be converted into the image signal (analog).
The color components of document images are extracted to R, G,
and B separately by the three kinds of CCD elements (R,G,B).
The red CCD extracts the red component of document images, the
green CCD green the components, and the blue CCD the blue
components. This operation is called the color separation.
The CCD unit looks like one unit, but it includes three kinds of CCD
elements, R, G, and B. 
The document scan in the main scanning direction is performed by
the CCD element. The document scan in the sub scanning direc-
tion is performed by shifting the scanner unit with the scanner
motor. Document images are optically reduced by the lens and
reflected to the CCD.
The scan resolution is 600 dpi. 
(Image data for 1 line)
(4) Image signal A/D conversion
1)
The image signal (analog) for each of R, G, and B is converted
into 10bit digital signal by the A/D converter.
Each color pixel has 10bit information. 
2)
The 10bit digital image signals of R, G, B are sent to the image
process section. 
(5) Zooming operation
Zooming in the sub scanning direction is performed by changing
the scanning speed in the sub scanning direction.
Zooming in the main scanning direction is not performed optically,
but performed with the image process technology (by the software).
B
R
G
R
G
B
R
G
B
Red component
image data
Green component
image data
Blue component
image data
CCD PWB
R
G
B
CCD
(6 Lines)
Analog IC
AFE ADC
LVDS
TG
Buffer
Timing
Generator
MX-4101N  SCANNER SECTION  E – 3
3.  Disassembly and assembly
A. Scanner unit
1)
Remove the upper cabinet rear cover and the upper cabinet
rear. 
2)
Remove the table glass and the SPF glass. 
3)
Remove the upper cabinet right and the upper cabinet left.. 
4)
Disconnect the connector, and remove the snap band.   
5)
Remove the screw, and remove the scanner unit. 
(1) Scanner lamp/CL inverter PWB
1)
Remove the SPF glass (A). Remove the glass holder (B) and
the table glass (C).
2)
Shift the lamp unit to the right end. Loosen the screw, and
remove the wire. 
Parts
a
Scanner lamp
b
CL inverter PWB
c
CCD unit
d
Scanner motor
e
Document detection light receiving PWB
f
Document detection light emitting PWB
f
d
e
b
a
c
1
2
3
A
B
C
2
2
1
3
MX-4101N  SCANNER SECTION  E – 4
3)
While rotating the lamp unit, lift it. Remove the harness holder
and the flat cable, and remove the lamp unit. 
4)
Disconnect the connector, and remove the lamp. 
5)
Remove the CL inverter PWB. 
(2) CCD unit
1)
Remove the dark box cover. Disconnect the connector, and
remove the CCD unit.
(3) Scanner motor
1)
Remove the upper cabinet rear cover and the upper cabinet
rear.
2)
Disconnect the connector and remove the scanner motor.
(4) Document detection light receiving PWB
1)
Remove the operation base plate. 
2)
Disconnect the connector, and remove the document detection
light receiving PWB. 
2
1
3
2
1
1
2
Page of 5
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Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man24) Service Manual ▷ Download

  • DOWNLOAD Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man24) Service Manual ↓ Size: 1.07 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.man24) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man24) Copying Equipment. Information contained in Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man24) 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.