Sharp Mx 2300n Service Manual

							MX-2300/2700 N/G  FUSING SECTION  N – 7
4. Maintenance
A. Fusing 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
K1100
K1200
KRemark/Refer to the 
Parts Guide.
Block/Item No. (Only 
the replacement parts 
are described.)
1 Upper heat roller Mechanism 
parts✕ ✕▲✕▲✕▲✕▲✕ ▲ ✕ ▲(P/G No.: [32]-32)
2 Lower heat roller✕ ✕▲✕▲✕▲✕▲✕ ▲ ✕ ▲(P/G No.: [33]-15)
3 Upper heat roller 
gear✕ ✕▲✕▲✕▲✕▲✕ ▲ ✕ ▲(P/G No.: [32]-30)
4 Upper roller bearing✕ ✕▲✕▲✕▲✕▲✕ ▲ ✕ ▲(P/G No.: [32]-31)
5 Lower heat roller 
bearing✕ ✕▲✕▲✕▲✕▲✕ ▲ ✕ ▲(P/G No.: [33]-14)
6 Upper separation 
pawl✕ ✕▲✕▲✕▲✕▲✕ ▲ ✕ ▲(P/G No.: [32]-11)
7 Upper thermistor✕ ✕▲✕▲✕▲✕▲✕ ▲ ✕ ▲(P/G No.: [32]-18)
8 Lower thermistor✕ ✕▲✕▲✕▲✕▲✕ ▲ ✕ ▲(P/G No.: [33]-20)
9 Non-contact 
thermistor✕ ✕ ✕▲✕ ✕▲✕ ✕▲ ✕ ✕ ▲
10 Gears✕ ✩✩✩✩✩✩✩✩✩ ✩ ✩ ✩Specified position
11 P a p e r  g u i d e{ {{{{{{{{{ { { {
12 Fusing unit✕ ✕▲✕▲✕▲✕▲✕ ▲ ✕ ▲(P/G No.: [31]-901)
(P/G No.: [32]-901)
(P/G No.: [33]-901)
5
582
4
466
2 1
3 1
8
7
9
12
7
9
11
11
11 
						

							MX-2300/2700 N/G  PAPER EXIT SECTION  O – 1 MX2700N
Service Manual [O] PAPER EXIT SECTION
1. Electrical and mechanism relation diagram
Signal name Name Function/Operation
FUM Fusing drive motor Drives the fusing unit.
HOPS Shifter home position detection Detects the shifter home position.
OSM Shifter motor Offsets the paper.
POD1 Fusing after detection  After fusing, paper exit from fusing section is detected. 
POD2 Paper exit detection Detects the exit paper.
POFM_F Paper exit cooling fan motor (F side) Cools the fusing unit.
POFM_R Paper exit cooling fan motor (R side) Cools the fusing unit.
POM Paper exit drive motor Drives the paper exit roller.
TFD2 Paper exit full detection  Detects face-down paper exit tray full. 
R SM-12p P
CN6
B12B-PH-K-S INT24V1
INT24V1
FUMB// FUMA//FUMB/
4INT24V1
FUMA//FUMB/
8 101 4
3 POMB//
FUMB//POMB/
POMA/
12 INT24V12 6
11
9 1012
9
1 25 6
3 7 11
10
7 12
1 2 5 6
3 4 9
8 11POMB/
POMB//
FUMA/ POMA//8 INT24V1
POMA/
DRIVER
MAIN
PWBINT24V1
5 INT24V1
7POMA//
FUMA/
INT24V11 POMA// INT24V1
2 POMA/ POMB/6
POMB//
3 INT24V1
4 5
FUMB// 1FUMB/
INT24V1 45
2 INT24V1 3FUMA/ 6
FUMA//
P DF1B-26pS CN13
B32B-PHDSS-B DF11-4DP-SP1DF11-8DP-SP2
DF11-6DP-SP1 DF11-6DP-SP11210
2 13
3
2
1
4 6
8
2
4/POFM_CNT
/POFM_CNT
/POFM_CNT
/POFM_CNT5
7
3
1
1 5 6
4
3
2 1 5 6
4
3
2
D-GND D-GND D-GND
D-GND
D-GND
D-GND
5VNPD 5VNPD 5VNPD
5VNPD
5VNPD
5VNPD P-GND
P-GND
P-GND
P-GND
POFM_V POFM_V POFM_V POFM_V
12 POD2 13/OSM_B
POD2/OSM_A
14
HOPS 16 15TFD2 /OSM_XAP-GND
/OSM_XB24V2 POFM_LD2
14 POD1 14
15 HOPS
16
17
12 18 11 11 P-GND7 /POFM_CNTPOFM_V
/POFM_CNT
19 15
POFM_LD1
2 7 6
17
7
/OSM_A3 /OSM_XB
4
5 POFM_LD1
9
TFD2 POFM_LD2
/OSM_B 8
2
5 424 8
921
22
9 /OSM_XA 3
13 11
5VNPDD-GNDPOD1
D-GND16
5VNPD 171 24V2 16 POFM_V
PCU PWB
D-GND 3HOPS 2 5VNPD 1
D-GND 3POD1 2 5VNPD 1
3 POD2 5VNPD
2 1
D-GND
5VNPD 3
D-GND 1TFD2 2
R SM6P P
124V2
/OSM_A 2/OSM_XB
/OSM_XA
4 3
4 2
3 /OSM_B1 55
PHNR-4-H,BU04P-TR-P-H
1 POFM_V 4
2 /POFM_CNT 3
3P-GND2
4 POFM_LD1 1
PHNR-4-H,BU04P-TR-P-H
1 POFM_V
2 /POFM_CNT
P-GND
4 POFM_LD24
3
2
1 3
TFD2HOPS
OSM
POD2POM
POD1
1
FUM POFM_R
POFM_F
2 3 
						

							MX-2300/2700 N/G  PAPER EXIT SECTION  O – 2
2. Operational descriptions
A. Paper exit section
• Paper transported from the fusing section is passed to the trans-
port roller 13 which is driven by the paper exit drive motor and to
the paper exit roller 1, then discharged to the inner tray. 
• When paper is discharged to the right tray, it is passed to the
paper exit roller 1 and the paper exit drive motor is reversely
rotated, and paper is passed over the ADU reverse gate and dis-
charged to the right tray. 
3. Disassembly and assembly
A. Paper exit section
(1) Paper exit unit
1) Remove the paper exit unit, and disconnect the connector.a. Exit paper full detection sensor
b. Shifter home position detection sensor
1) Remove the paper exit unit.
c. Paper exit detection sensor
d. After-fusing sensor
1) Remove the paper exit unit.
2) Paper exit sensor (A), after-fusing sensor (B)
e. Paper exit cooling fan motor
1) Remove the paper exit unit.
2) Remove the exhaust fan duct.
No. Name Function/Operation
1 Transport roller 9 (Drive) Transports the paper from the fixing roller to the transport roller 13.
2 Transport roller 13 (Drive) Paper transported from the transport roller 9 is transported to the paper exit roller 1. / Paper is 
transported to the duplex (ADU) section.
3 Paper exit roller 1 (Drive) Paper is discharged. / Paper is transported to the right paper exit tray. / Paper is transported to the 
duplex (ADU) section. 
Unit Parts Maintenance
(1) Paper exit 
unita Exit paper full detection sensor
b Shifter home position detection 
sensor
c Paper exit detection sensor
d After-fusing sensor
e Paper exit cooling fan motor
f Discharge brush✕
g Shifter motor
h Paper exit roller 1 (Drive)✕{
i Fusing drive motor
j Paper exit drive motor
k Transport roller 13 (Drive)✕{
l Transport roller 9 (Drive)✕{
m Discharge brush✕
n Paper exit filter
1
(1)
(1)-l(1)-k(1)-d
(1)-a (1)-b
(1)-g(1)-j
(1)-i
(1)-f
(1)-e
(1)-h
(1)-e(1)-c
(1)-m
(1)-n
(1)-n
1
2
A
B
: Dec. 15 20051 
						

							MX-2300/2700 N/G  PAPER EXIT SECTION  O – 3 3) Remove the paper exit cooling fan motor.
f. Discharge brush
1) Remove the paper exit unit.
2) Remove the exhaust fan duct.
3) Remove the discharge grounding plate, and remove the dis-
charge brush.
* Discharge brush attachment reference
When attaching the discharge brush, attach it along the
shifter PG.
g. Shifter motor
1) Remove the paper exit unit.
2) Disconnect the connector and the grounding terminal, and
remove the snap band. Remove the slide motor unit.3) Remove the shifter motor.
h. Paper exit roller 1 (Drive)
1) Remove the paper exit unit.
2) Remove the exhaust fan duct.
3) Remove the slide motor unit.
4) Remove the parts. Slide the bearing, and remove the shifter
unit.
5) Remove the parts, and remove the paper exit roller 1 (drive).
i. Fusing drive motor
1) Remove the paper exit unit.
2) Remove the fusing drive motor.
1
2
1
2
1
2
3
4 
						

							MX-2300/2700 N/G  PAPER EXIT SECTION  O – 4
j. Paper exit drive motor
1) Remove the paper exit unit.
2) Remove the paper exit drive motor.
k. Transport roller 13 (Drive)
1) Remove the paper exit unit.
2) Remove the slide motor unit.
3) Remove the paper exit drive unit.
4) Remove the E-ring, the reverse drive belt, and the pulley.
5) Remove the E-ring and the bearing, and remove the transport
roller 13 (Drive).
l. Transport roller 9 (Drive)
1) Remove the paper exit unit.
2) Remove the slide motor unit.
3) Remove the paper exit drive unit.
4) Remove the parts, and remove the transport roller 9 (Drive).m. Discharge brush
1) Remove the paper exit unit.
2) Remove the discharge brush.
* When attaching the discharge brush, attach it to the attachment
reference.
n. Paper exit filter
1) Open the right door.
2) Open the filter holding sheet, and remove the paper exit filter.1
0:*0.5mm 0:*0.5mm
1
2
: Dec. 15 20051 
						

							MX-2300/2700 N/G  PAPER EXIT SECTION  O – 5
4. Maintenance
A. Paper exit 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 Transport rollers Mechanism 
parts✕{{{{{{{{{ { { {
2 Discharge brush✕ ✕✕✕✕✕✕✕✕✕ ✕ ✕ ✕
3Paper exit filter1
1
23
1
: Dec. 15 20051 
						

							MX-2300/2700 N/G  DRIVE SECTION  P – 1 MX2700N
Service Manual [P] DRIVE SECTION
1. Disassembly and assembly
A. Main drive section
(1) Main drive unit
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Remove the screws, and open the control box.3) Remove the flywheel.
* Installing sequence: (1) C → (2) KM → (3) KM (Each color is
marked.)
* After installation, check to confirm that it is not in contact
with the harness, etc.
4) Remove the connectors.
5) Remove the screws, and remove the main drive unit.
* Hold section A and remove. 
Unit Parts
(1) Main drive unit a Toner motor
b Developer drive motor (K)
c Developing drive motor (CL)
d Drum motor (K)
e Drum motor (CL)
f Resist motor
g Phase detection PWB
h Separation clutch
(1)-a
(1)-a
(1)-c
(1)-e
(1)-g
(1)-d
(1)-g (1)-b (1)-a
(1)-f (1)-h (1)-a(1)
C
KM
KM
A 
						

							MX-2300/2700 N/G  DRIVE SECTION  P – 2 a. Toner motor
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Open the control box.
3) Remove the connector and the screws, then remove the toner
motor.
b. Developer drive motor (K)
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Open the control box.
3) Remove the flywheel.
4) Remove the connector and the screws, then remove the devel-
oper drive motor (K).
c. Developing drive motor (CL)
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Open the control box.
3) Remove the flywheel.
4) Remove the connector and the screws, and remove the devel-
oper drive motor (CL).
* When installing, tighten the screws in section (A).d. Drum motor (K)
e. Drum motor (CL)
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Open the control box.
3) Remove the flywheel.
4) Remove the connector and the screws, then remove the drum
motor (K) and the drum motor (CL).
f. Resist motor
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Open the control box.
3) Remove the flywheel.
4) Remove the connctor and the screws, then remove the resist
motor.
g. Phase detection PWB
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Open the control box.
3) Remove the flywheel.
4) Remove the screws, and remove the phase detection PWB.
Disconnect the connector.
A
A
A
A
B 
						

							MX-2300/2700 N/G  DRIVE SECTION  P – 3 h. Separation clutch
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Open the control box.
3) Remove the flywheel.
4) Remove the gear, and remove the separation clutch. Then dis-
connect the connector.
* When installing, check to insure that the clutch rotation-stop
projection is engaged with the sub frame projection.
B. Paper feed drive section
(1) Paper feed drive unit
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Open the control box.
3) Remove the connector, the screws and the grounding terminal,
then remove the driver main PWB unit.4) Remove the connector and the screws. Release the pawl, then
remove the filter box unit.
5) Remove the connector and remove the paper feed drive unit.
a. Transport motor
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Open the control box.
3) Remove the connector and the screws, then remove the trans-
port motor.
Unit Parts
(1) Paper feed drive unit a Transport motor
b Paper feed motor
c Paper tray lift-up motor
d Paper feed clutch (Paper feed tray 1)
e Paper feed clutch (Paper feed tray 2)
f Tray vertical transport clutch
(1)-a
(1)-b
(1)-c (1)
(1)-d
(1)-f
(1)-c
(1)-e 
						

							MX-2300/2700 N/G  DRIVE SECTION  P – 4 b. Paper feed motor
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Open the control box.
3) Remove the driver main PWB unit.
4) Remove the filter box unit.
5) Remove the connector and the screws, then remove the paper
feed motor.
c. Paper tray lift-up motor
1) Remove the rear cabinet. (Refer to Rear Cabinet in External
Outfit Section.)
2) Open the control box.
3) Remove the driver main PWB unit.
4) Remove the filter box unit.
5) Remove the connector and the screws, then remove the paper
tray lift-up motor unit.
6) Disengage the pawl, and remove the lift-up coupling.d. Paper feed clutch (Paper feed tray 1)
1) Remove the paper tray lift-up motor unit.
2) Remove the paper feed motor.
3) Remove the paper feed drive unit.
4) Remove the connection gear 21T. Remove the screws to
detach the drive frame upper unit.
5) Disconnect the connector, and remove the paper feed clutch
unit.
6) Remove the E-ring, and remove the paper feed clutch.