Sharp Mx 2300n Service Manual

MX-2300/2700 N/G  SCANNER SECTION  C – 1 MX2700N
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...

MX-2300/2700 N/G  SCANNER SECTION  C – 2
2. Operational descriptions
A. Outline
This section functions and operates as follows:
1) The copy lamp radiates light onto the document, and the
reflected light is scanned by the three line (RGB) CCD element
and then converted into image signals (analog).
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...

MX-2300/2700 N/G  SCANNER SECTION  C – 3
3. Disassembly and assembly
A. Optical system
(1) 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 screws, and remove the scanner unit.
a. Table glass
b. SPF glass
1) Remove the SPF glass (A). Remove the glass holder (B) and
the table glass (C).
Unit Parts...

MX-2300/2700 N/G  SCANNER SECTION  C – 4 c. Lens
d. CCD
1) Remove the glass holder and the table glass.
2) Remove the dark box cover (A) and the lens cover (B).
3) Clean the lens (A) and CCD (B).
e. Reflector
f. Mirrors
1) Remove the glass holder and the table glass.
2) Shift the lamp unit and the mirror unit.
3) Clean the reflector and No. 2 and 3 mirrors.4) Shift the lamp unit to the right end. Loosen the screws and
remove the wire.
5) While rotating the lamp unit, lift the lamp unit. Remove the har-...

MX-2300/2700 N/G  SCANNER SECTION  C – 5 4) Remove the CL inverter PWB.
i. CCD unit
1) Remove the dark box. Disconnect the connector and remove
the CCD unit.
j. Scanner motor
1) Remove the upper cabinet rear cover and the upper cabinet
rear.
2) Disconnect the connector, and remove the scanner motor.k. Scanner home position sensor
1) Remove the upper cabinet rear cover and the upper cabinet
rear.
2) Disconnect the connector, and remove the scanner home posi-
tion sensor.
l. Original cover SW
1) Remove the...

MX-2300/2700 N/G  SCANNER SECTION  C – 6
n. Document detection light emitting PWB
1) Remove the upper cabinet rear.
2) Remove the screws, and remove the light emitting unit.
3) Remove the document detection light emitting PWB
o. Railsp. Drive wire
q. Drive belt
* Install the drive wire in the sequence shown in the figure below.
Wind the drive wire 10 turns around the winding pulley.
The 9th turn must be fixed with a screw.
When moving the copy lamp unit manually for cleaning or adjusting
the scanner...

MX-2300/2700 N/G  SCANNER SECTION  C – 7
4. Maintenance
A. Optical Section
✕: Check (Clean, replace, or adjust according to necessity.) {: Clean ▲: Replace U: Adjust ✩: Lubricate †: Shif the position.
No. Parts nameMonochrome 
supply, 
mechanical partsWhen 
calling100
K200
K300
K400
K500
K600
K700
K800
K900
K1000
K11 0 0
K1200
KRemark/Refer to 
the Parts Guide. 
Block/Item No. 
(Only the 
replacement parts 
are described.)
1 Mirror/lens/
reflector/CCDMechanism parts{ {{{{{{{{{ { { {
2 Table glass/SPF...

MX-2300/2700 N/G  MANUAL PAPER FEED SECTION  D – 1 MX2700N
Service Manual [D] MANUAL PAPER FEED SECTION
1. Electrical and mechanism relation diagram
CN3(1/2)
S32B-PHDSS-B5VN
20 MPWD13 MPLD2
5VLED12MPLD16
18
19
5VLED13MTOP2
5VLED925 MTOP1
D-GND
31 28 5VN
29
14 27 24
MTOP1 6
22
14 13
1
TH_M
5VLED9 5
2D-GND 7
HUD_M1012 35VLED13
911 5VN 48
7 MTOP2
8 91 MPLD2 14
5 5VN
4 5VLED12 11
10
6 MPWD3 MPLD 12
RIGHT
DOOR I/F
PWB
TH_M HUD_M
DF11-8DP-SP1
8 6 7 2 4 5 3 1D-GND
D-GND
D-GND
D-GND
D-GND
D-GND
D-GND
D-GND
CN26...

MX-2300/2700 N/G  MANUAL PAPER FEED SECTION  D – 2
2. Operational descriptions
The paper pickup roller moves up and down to press paper and
separates the top paper, which is fed to the paper feed roller.
The paper feed roller feeds paper to the paper transport section,
and the separation roller prevents double feed.. ON/OFF control of
the pickup roller and the paper feed roller is made by the manual
paper feed clutch. Paper is transported to the resist roller by the
manual paper transport roller. 
3....

MX-2300/2700 N/G  MANUAL PAPER FEED SECTION  D – 3
(1) Manual paper feed tray unit
1) Open the right door unit.
2) Remove the screws, and remove the connector cover.
Remove the screws, then remove the ADU inner cover.
3) Remove the ADU cabinet F and the ADU cabinet R.
4) Remove the MF harness cover and disconnect the connector.5) Remove the MF tray installing shaft, and remove the manual
paper feed tray unit.
a. Temperature/humidity sensors
b. Manual paper feed tray pull-out position detector 1
c. Manual...