Sharp MX-M232D (serv.man3) Service Manual ▷ View online
MX-M182 EXTERNAL VIEWS AND INTERNAL STRUCTURES 5-5
5. Sensor, switch
No.
Name
Code
Function operation
1
Mirror home position sensor
MHPS
Detects the mirror (scanner unit) home position.
2
Side door switch
DSWR
Side door open detection
3
Paper exit sensor (paper exit side)
POD1
Detects paper exit.
4
Paper exit sensor (DUP side)
PDPX
Paper transport detection
5
Thermistor
RTH
Fusing section temperature detection
6
Thermostat
RDTCT
Fusing section abnormally high temperature detection
7
Toner density sensor
TCS
Detects the toner density in the developing unit.
8
2nd tray detection switch
CSD2
2nd tray detection
9
Bypass tray sensor
MPED
Bypass tray transport detection
10
2nd tray door open/close sensor
DRS2
2nd tray door open/close detection (MX-M202D/M232D)
11
2nd tray door paper pass sensor
PPD2
2nd tray paper entry detection (MX-M202D/M232D)
12
2nd tray paper empty sensor
CSS2
2nd tray paper empty detection (MX-M202D/M232D)
13
Paper in sensor
PIN
Paper transport detection
14
Tray empty
CSS1
Tray paper entry detection
15
Front cover SW
DSWF
Front cover open detection
16
Power switch
MAIN SW
Turns ON/OFF the main power source.
17
OC sensor
OCSW
Original cover and SPF open/close detection
18
Shifter home position sensor
SFTHP
Shifter home position detection
19
Original size sensor(Main Scaning)
DSIN0
Original size detection
20
Original size sensor(Sub Scaning)
DSIN1
Original size detection
1
15
16
19
4
5
6
7
8
9
10
11
13
14
12
2
3
17
18
(AB)
(AB)
(INCH)
(INCH)
20
MX-M182 EXTERNAL VIEWS AND INTERNAL STRUCTURES 5-6
6. PWB unit
No.
Name
Function operation
1
Copy lamp Inverter PWB
Copy lamp control
2
CCD sensor PWB
Image scanning
3
Main control PWB
Main control PWB
4
2nd tray PWB
2nd tray control
5
High voltage PWB
High voltage control
6
Power PWB
AC power input/DC power control
7
Operation main PWB
Operation panel input/Display, operation panel section control
8
USB I/F PWB
Connect a USB device
9
LCD OPE PWB
Display and operation panel control
1
7
9
6
5
3
4
2
8
MX-M182 EXTERNAL VIEWS AND INTERNAL STRUCTURES 5-7
7. Cross sectional view
1
7
8
9
9
10
11
12
13
14
11
12
13
14
15
16
17
19
20
21
22
23
5 6
3
18
2
4
No.
Name
Function/Operation
1
Copy lamp
Image radiation lamp
2
Copy lamp unit
Operates in synchronization with No. 2/3 mirror unit to radiate documents
sequentially.
sequentially.
3
LSU unit
Converts image signals into laser beams to write on the drum.
4
Lens unit
Reads images with the lens and the CCD.
5
MC holder unit
Supplies negative charges evenly on the drum.
6
Paper exit roller
Used to discharge paper.
7
Transport roller
Used to transport paper.
8
Upper heat roller
Fuses toner on paper (with the teflon roller).
9
Lower heat roller
Fuses toner on paper (with the silicon rubber roller).
10
Waste toner transport roller
Transports waste toner to the waste toner box.
11
Drum unit
Forms images.
12
Transfer charger unit
Transfer images (on the drum) onto paper.
13
DUP follower roller
Transports paper for duplex.
14
Duplex transport roller
Transports paper for duplex .
15
Resist roller
Takes synchronization between the paper lead edge and the image lead edge.
16
Bypass tray
Bypass tray
17
Bypass tray paper pick up roller
Picks up paper in bypass tray.
18
No. 2/3 mirror unit
Reflects the images from the copy lamp unit to the lens unit.
19
Bypass tray transport roller
Transports paper from the bypass tray.
20
2nd tray paper transport roller
Transports paper from the 2nd tray. (MX-M202D/M232D)
21
2nd tray paper pick up roller
Picks up paper from the 2nd tray. (MX-M202D/M232D)
22
1st tray paper feed roller
Picks up paper from the 1st tray.
23
MG roller
Puts toner on the OPC drum.
MX-M182 ADJUSTMENT 6-1
[6] ADJUSTMENTS
1. Adjustment item list
2. Copier adjustment
A. Process section
(1) Developing doctor gap adjustment
1) Loosen the developing doctor fixing screw A.
2) Insert a thickness gauge of 1.5mm to the three positions at 20mm
2) Insert a thickness gauge of 1.5mm to the three positions at 20mm
and 150mm from the both ends of the developing doctor as shown.
3) Push the developing doctor in the arrow direction, and tighten the fixing
screws of the developing doctor in the sequence of 1
3233.
4) Check the clearance of the developing doctor. If it is within the
specified range, then fix the doctor fixing screw with screw lock.
*
When inserting a thickness gauge, be careful not to scratch the
developing doctor and the MG roller.
<Adjustment specification>
(2) MG roller main pole position adjustment
1) Remove the DV front cover, and put the developing tank on a flat
surface.
2) Tie a string to a needle or a pin.
3) Hold the string and bring the needle close to the MG roller
horizontally. (Do not use paper clip, which is too heavy to make a
correct adjustment.) (Put the developing unit horizontally for this
correct adjustment.) (Put the developing unit horizontally for this
adjustment.)
4) Do not bring the needle into contact with the MG roller, but bring it to
a position 2 or 3mm apart from the MG roller. Mark the point on the
MG roller which is on the extension line from the needle tip.
5) Measure the distance from the marking position to the top of the
doctor plate of the developing unit to insure that it is 18mm.
If the distance is not within the specified range, loosen the fixing
screw A of the main pole adjustment plate, and move the adjustment
plate in the arrow direction to adjust.
Section
Adjustment item
Adjustment procedure/SIM No.
A
Process
section
section
(1)
Developing doctor gap adjustment
Developing doctor gap adjustment
(2)
MG roller main pole position adjustment
MG roller main pole position adjustment
(3)
Developing bias voltage check
(4)
Main charger voltage check
B
Mechanism
section
section
(1)
Image position adjustment
SIM-50
(2)
Main scanning direction (FR direction) distortion balance
adjustment
adjustment
No. 2/3 mirror base unit installing position adjustment
Copy lamp unit installing position adjustment
(3)
Main scanning direction (FR direction) distortion adjustment
Rail height adjustment
(4)
Sub scanning direction (scanning direction) distortion
adjustment
adjustment
Winding pulley position adjustment
(5)
Main scanning direction (FR direction) magnification ratio
adjustment
adjustment
SIM 48-1
(6)
Sub scanning direction (scanning direction) magnification ratio
adjustment
adjustment
OC mode in copying (SIM 48-1)
SPF mode in copying (SIM 48-5)
(7)
Off center adjustment
OC mode (SIM 50-12)
SPF mode (SIM 50-12)
C
Image density
adjustment
adjustment
(1)
Copy mode
SIM 46-2
20mm
20mm
150mm
A
A
A
DV front cover
2
3
1
Developing doctor gap
Both ends (20mm from the both ends) :
C (Center) (150mm from the both ends) :
1.5 0.1mm
1.5 0.1mm
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