DOWNLOAD Sharp AR-M35 / AR-M450 (serv.man8) Service Manual ↓ Size: 6 MB | Pages: 54 in PDF or view online for FREE

Model
AR-M35 AR-M450 (serv.man8)
Pages
54
Size
6 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / AR350 450 Series Basic Service Manual
File
ar-m35-ar-m450-sm8.pdf
Date

Sharp AR-M35 / AR-M450 (serv.man8) Service Manual ▷ View online

AR-350/450 BASIC SCANNER SECTION 8-2
2. Outline of the DSPF section
1
CIS unit
 (AR-EF1 only)
This is an image sensor unit to scan the back of a document. An image sensor (CIS: Contact Image Sensor) of 7,196 
pixels is employed. The scan resolution is 600dppi.LED lights in the unit are reflected onto the document. Lights 
reflected from the document are passed through the lens to form images on the photoelectric conversion elements. 
The photo energy is converted into electric energy.
2
Document resist roller This roller makes synchronization between the document lead edge and the scan start position.
3
Document resist front 
sensor (SPSD)
Detects that a document reaches the resist roller. 
4
Document set sensor
Detects that a document is set on the tray.
5
Document feed roller
Feeds documents. 
6
Separation plate
The rubber plate prevents against duplicated feed of documents.
7
Document length 
sensor (SLD1/SLD2)
Detects the document length to detect the document size.
8
Document width 
detection volume
Detects the document width to detect the document guide. 
9
SPF motor
Transports a document in the SPF.
10
Document take-up 
roller 
Picks up a document and transport it to the document feed roller.  
11
Document exit roller
Discharges a document.
12
Document exit sensor
Detects document exit. 
1
2
5
7
8
10
12
3
4
6
9
11
   &     !"#$%
AR-350/450 BASIC SCANNER SECTION 8-3
a. CCD/Lens unit
The reduction optical type CCD (Charge Coupled Device) of 7,500 pixels
is employed. The scan resolution is 600dpi. 
Lights reflected from the document are reflected by the mirrors, and
passed through the reduction type lens to form images on the CCD
element. The photo energy is converted into electric energy (analog
signals). 
Line CCD scan is performed line by line. 
By moving the carriage unit (lamp and mirror) or by moving the
document, the scan position is shifted in order. 
b. CIS unit
This is an image sensor unit to scan the back of a document. 
An image sensor (CIS: Contact Image Sensor) of 7,196 pixels is
employed. The scan resolution is 600dppi.
This image sensor is independent from the image sensor of the scanner
unit. 
It realizes simultaneous scanning of both surfaces of a document. 
LED lights in the unit are reflected onto the document. Lights reflected
from the document are passed through the lens to form images on the
photoelectric conversion elements. This photo energy is converted into
electric energy (analog signals). Scanning of CIS is performed line by
line.
By moving the document on the scanning line, the scan position is
shifted in order. 
c. Image signal flow
The image signals made by photoelectric conversion in the CCD/CIS unit
are subject to image process of white balance and shading correction by
the CCD/CIS PWB, and passed through the scanner connection PWB to
the scanner control PWB.
The signals are then passed from the scanner control PWB to the MFP
controller, where they are converted into the laser lighting signals and
passed through the motherboard PCU to the LSU (Laser Scanning Unit). 
   '     !"#$%
AR-350/450 BASIC SCANNER SECTION 8-4
3. Counter table
A. Multi- function model
Simulation 
Code
Operation content
UNIT
CONFORMING 
COUNT MODE
(26-5)
COUNT TIMING, ETC.
Main Sub
ICU
(Data ID)
FAX
(Data ID)
SCANNER
(Data ID)
ENGINE
(Data ID)
TOTAL
MAINTE
NANCE
DEVE
22
01
Each counter display 
(Total/Maintenance/
Developer/RADF/
Staple/Tray)
1:TOTAL COUNTER
0010
O
(described later)
2:DRUM 
CARTRIDGE 
COUNTER
0011
O
(described later)
(Equivalent to the maintenance 
counter)
3:TONER 
CARTRIDGE 
COUNTER
0012
O
(described later)
(Equivalent to the developer counter)
4:DEVE 
CARTRIDGE 
COUNTER
0013
O
(described later)
5:MAINTENANCE 
COUNTER
001B
O
(described later)
6:TOTAL OUTPUT 
COUNTER
0019
O
(described later)
(Equivalent to the copy valid paper)
7:COPY COUNTER
O
(described later)
(Equivalent to the copy valid paper)
8:PRINTER 
COUNTER
O
(described later)
(Equivalent to the print counter)
9:FAX OUTPUT 
COUNTER
O
(described later)
(Equivalent to the FAX counter)
10:RIGHT SIDE 
OUTPUT 
COUNTER
001E
O
Counts up on starting main body 
paper exit. 
(When POD2 ON)
11:OTHER PRINT 
COUNTER
O
(described later)
02
 JAM/Trouble 
counter display
1:PAPER JAM
-
-
-
Counts up at every event.
(A jam by door close  is not counted.)
2:SPF JAM
-
-
-
Counts up at every event.
(A jam by door close  is not counted.)
3:TROUBLE
-
-
-
Counts up at every event. 
(Follows the trouble count method of 
SIM 26-35.)
08
Document/Staple 
counter display
1:SPF DOCUMENT 
FEED NUMBER
0011
-
-
-
1 count for every SPF document 
exposure in all the modes
2:SCAN NUMBER
0010
-
-
-
1 count for completion of every scan 
in all the modes
3:STAPLING 
NUMBER
001C
-
-
-
1 count for every staple
4:PUNCHING 
NUMBER
001D
-
-
-
1 count for every punching
5:SPF FINISH 
STAMP NUMBER
0014
-
-
-
1 count for every stamping
   (     !"#$%
AR-350/450 BASIC SCANNER SECTION 8-5
Simulation 
Code
Operation content
UNIT
CONFORMING 
COUNT MODE
(26-5)
COUNT TIMING, ETC.
Main Sub
ICU
(Data ID)
FAX
(Data ID)
SCANNER
(Data ID)
ENGINE
(Data ID)
TOTAL
MAINTE
NANCE
DEVE
22
09
Pasper feed number 
countere
1:TRAY1
0015
-
-
-
1 count when picking up paper
2:TRAY2
0016
-
-
-
1 count when picking up paper
3:TRAY3(LCC1)
0017
-
-
-
1 count when picking up paper
4:TRAY4(LCC2)
0018
-
-
-
1 count when picking up paper
5:MFT
0014
-
-
-
1 count when picking up paper
6:ADU
001A
-
-
-
1 count when picking up paper
11
FAX send/receive 
counter display
FAX SEND
(Send counter)
FAXAPP
-
-
-
Accumulated send number
•Except for sequential,
one reservation is counted as one
transmission.
•For sequential, each transmission is
counted as one separately. 
•Recall is not included.
•Saved in the 32bit counter and the
FAX-SRAM.
2:FAX RECEIVE
(Receive counter)
FAXAPP
-
-
-
Accumulated receive number
•Regardless of normal or abnormal,
 all are counted. 
•Saved in the 32bit counter and the
FAX-SRAM.
3:FAX OUTPUT
(FAX print number)
Print S
O
FAX receive/print accumulated 
number
Count by size and count when 
recovery are the same as the copier 
specifications. 
•Count by the print system
(described later)
4:SEND IMAGES
(Send number)
FAXAPP
-
-
-
Accumulated send number
•The total number and each
 department number are required.
 (SIM displays only the total 
number.)
•For sequential, one communcation
is counted individually as one. 
•Saved in the 32bit counter and the
FAX-SRAM.
5:SEND TIME
(Send time)
FAXAPP
-
-
-
hhhhhhhh:mm:ss
Saved in the FAX-SRAM with BCD.
6:RECEIVE TIME
(Receive time)
FAXAPP
-
-
-
hhhhhhhh:mm:ss
Saved in the FAX-SRAM with BCD.
   )     !"#$%
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