MX3500N SCANNER SECTION C – 1
MX3500N
Service Manual
[C] SCANNER SECTION
1. Electrical and mechanism relation diagram
Signal Name Function/Operation
CLI Scanner lamp Illuminates the document. (Xenon 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 Inducts the document image into the No.3 mirror.
6 No. 3 mirror Inducts the document image into the lens.
7 Lens Reduces the document image (light), and project it on CCD.
8 CCD PWB Reads the document image (optical signal) and converts it into the electric signal.
9 Idle gear Transmits the scanner motor power to the belt.
CN3 501190-4017 CN1 501190-2017
CN148 501190-4017 CN147 501190-2017 CN137
CCD PWB
CCD_CLK1+
16
17
18
19
20
2
3
38
40
39
35
1
30
15
5
6
7
8
12
13
14
AD_MCLK-
AD_BLKCLP
SH_OUT-
AD_RDSI
CCD_CLK1-
AGND
AGND
TC-
TE-
AGND
AGND
AGND
AGND
TC+
TE+
AGND
AGND 34
36
37
32
33
CCD_SH
31
AD_MCLK+
AD_CLPIN
26
27
28
29
20
21
24
25
23
/RES_CCDAD
CCD_CLK2-
22
AD_SCLK
CCD_CLK2+
AD_WRSO
AGND
AD_SEN
18
19
A3.3V
CCD_RS-
/LVDS_STBY
AGND 15
16
17
CCD_CP-
AGND
CCD_CP+
A5V
AGND
AGND
CCD_RS+ 11
12
13
14
7
8
9
10
1
2
AGND
AGND
A12V
5
6
3
4
AGND
9
10
11
4
AGND
AGND
CLKP1_OUT+
SH_OUT+
CLKP1_OUT-
TB+
TD+
TB-
TD-
AGND
AGND
TA+
TCLK+
TA-
TCLK-
AGND
AGND
AGND
AGND
AGND
A12V
CCD_CP-
AGND
CCD_CP+
A5V
AGND
AGND
CCD_RS+
A3.3V
CCD_RS-
/LVDS_STBY
AGND
/RES_CCDAD
AD_RDSI
CCD_CLK1-
CCD_CLK2-
AD_SCLK
CCD_CLK2+
AD_WRSO
AGND
AGND
AD_CLPIN
AD_MCLK-
AD_BLKCLP
AD_MCLK+
CCD_SH
AGND
AGND
CLKP1_OUT+
SH_OUT+
CLKP1_OUT-
SH_OUT-
AGND
AGND
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
CCD_CLK1+
23
AGND
AD_SEN
AGND
AGND
TC+
TE+
TC-
TE-
AGND
AGND
TB+
TD+
TB-
TD-
AGND
AGND
TA+
TCLK+
TA-
TCLK-
AGND
AGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
MiM_A
MiM_B
MiM_/A
MiM_/B
MIM
1
2
3
MHPS
CLI
CN134
3
2
1
1
2
3
MHPS
D-GND
5V
MHPS
D-GND
5V
CL
INVERTOR
PWB
CN130
1
P-GND
P-GND
CL
24VPD
24VPD
5
4
3
2
5
P-GND
P-GND
CL
24VPD
1
2
3
4
24VPD
1
2
SCN-CNT
PWB
8
4
3
7
5
6
2
9
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