Read Sharp AR-M550 (serv.man12) Service Manual online
AR-M550/M620 DETAILS OF EACH SECTION 6 - 124
[CIS section]
A. Major parts and signal functions
B. Operational descriptions
(1) Document scan
C. Maintenance and parts replacement
(1) Maintenance list
✕
: Check (Clean, replace, or adjust as necessary.)
❍
: Clean
▲
: Replace
∆
: Adjust
✩
: Lubricate
❏
: Shift position
Code
Signal name
Name
Function/Operation
Type
Note
CIS
CIS
CIS control PWB
Scans document images (back surface) and controls the
CIS unit.
CIS unit.
S22B-PHDSS-B
CN12
CN11
S20B-PHDSS-B
S20B-PHDSS-B
11
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
STRC
SPFC
SRRC
SPFFAN
STRBC
SRRBC
SPF SET
/SLUMB
SLUMA
SLUMB
SLUMA
SLUMB
/SLUMA
SPWS
STLD
SPPD3
SPOD
SPED2
SPPD4
SOCD
SPLS1
SPLS2
17
16
18
12
13
13
15
14
19
20
20
CN2
B32B-PHDSS-B
B32B-PHDSS-B
12
18
1
8
14
13
5
9
3
4
4
2
6
16
7
17
20
19
15
10
11
11
9
19
6
3
18
21
15
2
14
11
22
8
4
1
17
12
16
20
7
5
13
10
21
22
23
24
25
26
27
28
29
30
22
23
24
25
26
27
28
29
30
32
31
24V3
24V3
SPFMO2
SPFMO1
GND
GND
STUD
SPED1
SPPD1
SCOV
VAREF
SPPD2
GND
5V2
GND
N.C
/SPFMA
SPFMA
/SPFMB
SPFMB
STRC
SPFC
SRRC
STRBC
SRRBC
SPF SET
/SLUMA
/SLUMB
SLUMA
SLUMB
/SLUMB
SLUMA
SLUMB
STRRBC
STRRC
STRRC
STRRBC
STRRBC
5V2
24V3
/SPFMB
GND
SPED1
STUD
24V3
/SPFMA
SCOV
SPPD1
SPFMO2
SPFMO1
SPFMB
SPFMB
VAREF
GND
SPFMA
SPPD2
GND
GND
5V1
SCN cnt PWB
FFC-35Pin
12V2
24V3
RXD_CCD2
TXD_CCD2
CLK_CCD2
3.3V3
GND
FRM_CCD2
GND
PAGE2
ADD_CCD2
ADD_CCD2
S26B-PHDSS-B
/CISSET
CN10
GND
GND
5V2
3.3V3
20
24
18
17
15
10
21
23
13
19
12
11
14
16
22
25
26
26
5V2
2_DATA1+
2_DATA0-
2_DATA0+
2_DATA0-
2_DATA0+
2_DATA1-
2_CLK-
2_CLK+
/2_DBL-
/2_DBL+
2_CLK+
/2_DBL-
/2_DBL+
RES_CCD2
9
1
7
5
4
6
8
2
3
3
SPF PWB
CIS
CIS unit: The CIS (Contact Image Sensor) unit is the contact type
image scan sensor, and is assembled to the SPF to scan
document images.
document images.
The LED light in the CIS unit is radiated to a document, and
the reflected light is passed through the lens to the photo-
electric conversion elements to form images.
the reflected light is passed through the lens to the photo-
electric conversion elements to form images.
(Pixel: 7196 pixels, resolution: 600dpi)
The CIS and the CCD assembled in the lens unit allow
simultaneous scan of duplex surfaces of a document.
simultaneous scan of duplex surfaces of a document.
AR-M550U/M550N (PM: 250K)
When
calling
250K 500K 750K 1000K 1250K 1500K 1750K 2000K
Remark
AR-620U/M620N (PM: 300k)
300K 600K 900K 1200K 1500K 1800K 2100K 2400K
Unit name
No.
Part name
SPF
Document
feed/transport
section
feed/transport
section
1
Exposure section (CIS unit)
❍
❍
❍
❍
❍
❍
❍
❍
❍
(Note 1)
Replacement reference: For replacement, refer to each paper feed port counter value.
SPF section : 100K or 1 year
1
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