Read Sharp MX-6240N / MX-7040N (serv.man32) Service Manual online
MX-7040N OPERATIONAL DESCRIPTIONS 13 – 9
3. Scanner section
A. Electrical and mechanical relation diagram
Signal name
Name
Function/Operation
CLFM
Scanner cooling fan
Cools the scanner unit.
CLI
Scanner lamp
Radiates light onto a document for the CCD to scan the document image.
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
CCD PWB
Scans document images and performs A/D conversion of the scanning signal.
2
SCU PWB
Controls the scanner and the operation section.
3
Scanner lamp drive PWB
Drives the scanner lamp.
4
Lens
Shrinking the image (light) of the document, and project it on CCD.
5
No. 1 mirror
Reflects the document image into the lens.
6
No. 2 mirror
7
No. 3 mirror
8
Reflector
Converges scanner lamp lights to radiate onto the document.
MHPS
CLFM
CLI
MIM
LED DRIVER
PWB
PWB
SCN CNT PWB
EHR-3
33
22
11
MHPS
D-GND
5V
PHR-4
PHR-4
2
3
1
4
B4B-PH-K-S
CN-2
MIM_B
MIM_A
MIM_/B
MIM_/A
CN-1
B3B-P
ASK-1
P
AP-03V
-S
SMP-03V
-NC
SMR-03V
-N
1
2
3
2
3
1
GND
CN_OCF
AN_LOCK
OCF
AN_PO
WER
2
3
1
4
MIM_B
MIM_A
MIM_/B
MIM_/A
B4B-PH-SM4-TB
GND
CN_AFE_SDO
AFE_SDT
O
AFE_SCLK
AFE_CS
nRES_CCD
AD
A3.3V
A3.3V
A3.3V
A3.3V
A3.3V
A3.3V
GND
GND
GND
A5V
A5V
A5V
A10V
A10V
CN_T
A_N
CN_T
A_P
GND
GND
GND
GND
GND
CN_TB_N
CN_TB_P
CN_TC_N
CN_TC_P
CN_TCLK_N
CN_TCLK_P
CN_TD_N
CN_TD_P
GND
CN_TE_N
CN_TE_P
GND
SCNCNT_SE2
SCNCNT_SE1
GND
GND
GND
GND
GND
GND
GND
GND
GND
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
30
29
28
27
26
25
24
23
22
21
39
38
37
36
35
34
33
32
31
42
43
44
45
46
47
48
41
40
49
50
FH48-50S-0.5SV
CN-1011
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
30
29
28
27
26
25
24
23
22
21
39
38
37
36
35
34
33
32
31
42
43
44
45
46
47
48
41
40
49
50
GND
CN_AFE_SDO
AFE_SDT
O
AFE_SCLK
AFE_CS
nRES_CCD
AD
A3.3V
A3.3V
A3.3V
A3.3V
A3.3V
A3.3V
GND
GND
GND
A5V
A5V
A5V
A10V
A10V
CN_T
A_N
CN_T
A_P
GND
GND
GND
GND
GND
CN_TB_N
CN_TB_P
CN_TC_N
CN_TC_P
CN_TCLK_N
CN_TCLK_P
CN_TD_N
CN_TD_P
GND
CN_TE_N
CN_TE_P
GND
SCNCNT_SE2
SCNCNT_SE1
GND
GND
GND
GND
GND
GND
GND
GND
GND
FH48-50S-0.5SV
CN-1
CCD PWB
PHR-3
B3B-PH-K-S
CN-17
MHPS
2
3
1
5VPD
GND
GND
CN_OCF
AN_LOCK
OCF
AN_PO
WER
2
3
1
3
2
5
4
1
5597-05CPB7F
CN
-7
24VPD
24VPD
LAMP
GND
GND
5
2
3
4
1
CN-8
5
597
-05APB
24VPD
24VPD
LAMP
GND
GND
4
7
2
3
1
5
6
8
B8B-PH-K-S
IDR
V7
IDR
V1
IDR
V2
IDR
V3
IDR
V5
IDR
V6
IDR
V4
24V
PHR-8
PHR-8
B8B-PH-K-S
2
3
4
5
6
1
7
8
IDR
V1
IDR
V2
IDR
V3
IDR
V5
IDR
V6
IDR
V4
IDR
V7
24V
3
5
6
7
1
2
4
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