Sharp Mx 2300n Service Manual

							MX-2300/2700 N/G  TRAY PAPER FEED SECTION  E – 7 j. Tray 1, 2 transport detection
1) Remove the paper feed unit 1, 2.
2) Remove the paper feed reverse PG unit. (Tray paper feed unit
1 only)
3) Remove the paper feed vertical transport PG unit. (Tray paper
feed unit 2 only)
4) Remove the paper feed upper PG supporting plate.
5) Remove the tray 1, 2 transport detector.
k. Transport roller 5 (Drive)
1) Remove the tray paper feed unit 1.
2) Remove the paper feed reverse PG unit.
3) Remove the paper feed upper PG supporting plate.
4) Remove the parts, and remove the transport roller 5 (Drive).
Remove the E-ring and the bearing holder from the transport
roller 5 (Drive).
(2) Others
a. Tray 1, 2 paper remaining quantity detection
1) Remove the tray 1 and 2.2) Remove the connector and the screws, then remove the tray
1, 2 paper remaining quantity detector.
b. Tray 1, 2 presence detection
1) Remove the tray 1 and 2.
2) Remove the connector and the screws, then remove the tray
1, 2 presence detector.
3) Release the pawl, and remove the tray 1, 2 detection unit.
Remove the spring from the tray 1, 2 presence detector.
12
3
4
1
2 
						

							MX-2300/2700 N/G  TRAY PAPER FEED SECTION  E – 8
4. Maintenance
✕: 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 Pickup roller Mechanism 
parts{ {{{{{{{{{ { { {(P/G No.: [11]-40)
2 Paper feed roller{ {{{{{{{{{ { { {(P/G No.: [11]-41)
3 Separation roller{ {{{{{{{{{ { { {(P/G No.: [10]-4)
4 Torque limiter✕ ✕✕✕✕✕✕✕✕✕ ✕ ✕ ✕
5 Transport rollers{ {{{{{{{{{ { { {
1
4
4
23
123
5
5 
						

							MX-2300/2700 N/G  PAPER TRANSPORT SECTION  F – 1 MX2700N
Service Manual [F] PAPER TRANSPORT SECTION
1. Electrical and mechanism relation diagram
Signal name Name Function/Operation
PFM Transport motor Transport drive between the resist roller and the paper feed section. Transport drive between the resist 
roller and the right door section.
PPD1 Resist front detection Detects paper before the resist roller.
PPD2 Resist detection Detects paper after the resist roller. 
RRM Resist motor Controls the drive and ON/OFF of the resist roller.
No. Name Function/Operation
1 Resist roller (Drive) Transport paper to the transfer section./ Controls the transport timing of paper and adjusts relationship 
between images and paper.
2 Resist roller (Idle) Applies a pressure to paper and the resist roller to supply transport power of the transport roller to paper. 
3 Transport roller 8 (Drive) Transport the paper to the resist roller.
PPD1 PPD2
3PFM RRM
2
1
CN1
B6B-PH-K-S6 13
4 PSFMB/PSFMB// 2
PSFMA/
INT24V1 5 INT24V1PSFMA//
INT24V1 5 PSFMB// 3
PSFMB/ 6 PSFMA/ 41
INT24V1 2 PSFMA//
DRIVER
MAIN PWB
PHNR-6-H
BU06P-TR-P-H CN17
B32B-PHDSS-B
DF11-6DP-SP129 D-GND
2
1D-GND 1
2
3D-GND
PPD1
5VNPD
5VNPD 6
5
4
3 5VNPD1
2
3 D-GND
PPD1
5VNPD31 PPD1
D-GNDPPD2 PPD2
PPD2 1
2
3
4
6 30 D-GND32 5
REGS_R
24
REGS_R_LED#
23 5VNPD
27 D-GND
26
PCU
PWB
1
5
6
2
3
4
17 /PCSS
16 24V35VNPD 5VNPD 5VNPD 5VNPD 5VNPD 5VNPD 
						

							MX-2300/2700 N/G  PAPER TRANSPORT SECTION  F – 2
2. Operational descriptions
A. Paper transport section
Paper is fed from each paper feed section and transported to the
resist roller by the transport rollers. ON/OFF control of each trans-
port roller is made by the paper transport clutch. The resist roller
controls the relative positions of transported paper and the transfer
image. The resist roller is driven by the transport motor. The rela-
tive positions of paper and the transfer image are determined by
the ON timing of the transport motor.
3. Disassembly and assembly
A. Paper transport section
(1) Resist roller unit
1) Remove the developing unit (K).
2) Remove the drum unit (K).
3) Remove the primary transfer unit.
4) Remove the tray paper feed unit 1.
5) Remove the rear cabinet.
6) Remove the ADU connection drive.7) Remove the connector and the screws, then remove the resist
roller unit.
a. Resist front detection
1) Remove the resist roller unit.
2) Remove the sensor holder.
b. Transport roller 8 (Drive)
1) Remove the resist roller unit.
2) Remove the grounding plate. Remove the parts, and remove
the transport roller 8 (Drive).
Unit Parts Maintenance
(1) Resist roller 
unita Resist front detection
b Transport roller 8 (Drive)✕{
c Resist roller (Drive)✕{
d Resist detection
e Resist roller (Idle)✕{
(1)
(1)-a(1)-b (1)-c (1)-e
(1)-d
1
3
3
4
2 
						

							MX-2300/2700 N/G  PAPER TRANSPORT SECTION  F – 3 c. Resist roller (Drive)
1) Remove the resist roller unit.
2) Remove the spring and the E-ring. Remove the JAM release
handle.
3) Remove the parts. Slide the resist roller (Drive) to the front
side. Remove the parallel pin, the PS gear, and the E-ring from
the resist roller (Drive).
d. Resist detection
1) Remove the resist roller unit.
2) Remove the PS stay, then remove the resist detector.e. Resist roller (Idle)
1) Remove the resist roller unit.
2) Remove the PS stay.
3) Clean the resist roller (idle).
1
2
3
5
2
4
1
2 
						

							MX-2300/2700 N/G  PAPER TRANSPORT SECTION  F – 4
4. Maintenance
✕: 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 PS follower roller Mechanism parts✕{{{{{{{{{ { { {
2 Transport rollers{ {{{{{{{{{ { { {
1
2 
						

							MX-2300/2700 N/G  DUPLEX SECTION  G – 1 MX2700N
Service Manual [G] DUPLEX SECTION
1. Electrical and mechanism relation diagram
Signal name Name Function/Operation
ADUM_L ADU motor lower Drives the right door section.
APPD1 ADU transport path detection 1 Detects paper pass in the upstream of the duplex (ADU).
APPD2 ADU transport path detection 2 Detects paper pass in the midstream of the duplex (ADU).
DSW_ADU ADU transport open/close detection Duplex (ADU) cover open/close detection
POD3 Right tray paper exit detection Detects the paper exit into the right tray.
TFD3 Detects the right tray paper exit full. Detects the right tray paper exit full.
No. Name Function/Operation
1 Transport roller 10 (Drive) Transports the paper transported from the transport roller 13 to the transport roller 11.
2 Transport roller 11 (Drive) Transports the paper transported from the transport roller 10 to the transport roller 12.
3 Paper exit roller 2 (Drive) Used to discharge paper.
POD3
DSW_ADU
APPD1
APPD2ADUM_L
TFD3
CN2
PHNR-6-H + BU06P-TR-P-H
PHNR-4-H + BU04P-TR-P-H
PHNR-3-H + BU03P-TR-P-H S16B-PHDSS-B
CN3(1/2)
S32B-PHDSS-B5VLED2 3 3
1D-GND 2 DSW_ADU
D-GND
5VLED2 3
2
4
APPD2 6 5
3 APPD1 11
5VLED10 2 2
1 5VLED5 3
D-GND 2 D-GNDAPPD1
1 1
3
3 65VLED4 3
25
4D-GND
D-GNDPOD3
DSW_ADU 1 POD3
5VLED42 D-GND3TFD3
5VLED1 2 1
5VLED5 2 1
2D-GND 6
3
4 3TFD3
5VLED1D-GND
2 1
2 D-GND1
3 TFD3
5VLED1
POD3
6 5VLED4
5VLED59 5VLED28 4
5 D-GND
DSW_ADU 7
10 APPD1
11 D-GND D-GND
5VLED104 APPD2
5 D-GND12
RIGHT
DOOR I/F
PWB
DRIVER
MAIN PWB
CN5
B12B-PH-K-S11 INT24V1
10 ADMLB/9 ADMLB//
12 INT24V17 ADMLA/
ADMLA/ 4ADMLB// 3 1 ADMLA// 8 ADMLA//
INT24V1 2
ADMLB/ 6INT24V1 5
2
1
3 
						

							MX-2300/2700 N/G  DUPLEX SECTION  G – 2
2. Operational descriptions
A. Duplex section
• Paper is transported from the fusing section and sent to the
transport roller 13 driven by the paper exit drive motor and to the
paper exit roller 1. 
At that time, paper passes under the ADU reverse gate guide.
• After the specified time from detection of paper lead edge by
POD1, the paper exit drive motor is rotated forward, and after the
specified time, it is rotated reversely.
• At that time, paper passes the right side of the ADU gate guide
by its own weight.
• The transport rollers 10 and 11 are driven by the ADU motor
lower, and paper is transported to the duplex paper feed position.
• Paper is stopped at the duplex paper feed position, and trans-
ported to the inside of the machine again.
3. Disassembly and assembly
A. Duplex section
(1) Right door unit
1) Open the right door unit.
2) Remove the right door unit.
a. RD I/F PWB
1) Open the right door unit.
2) Remove the connector cover, and remove the ADU inner
cover.
3) Remove the connector, and remove the RD I/F PWB.
Unit Parts Maintenance
(1) Right door 
unita RD I/F PWB
b Manual paper feed clutch
c Discharge brush✕
d Detects the right tray paper exit 
full.
e Right tray paper exit detection
f ADU reverse gate
g ADU gate lower
h ADU transport open/close 
detection
i ADU transport path detection 1
j Paper exit roller 2 (Drive)✕{
k Transport roller 10 (Drive)✕{
l Transport roller 11 (Drive)✕{
m ADU transport path detection 2
(2) Others a ADU motor lower
(1)
(1)-l
(1)-m
(1)-k
(1)-g(1)-j
(1)-f (1)-c (1)-d (1)-e
(1)-a
(1)-b
(2)-a (1)-i (1)-h
1
2 
						

							MX-2300/2700 N/G  DUPLEX SECTION  G – 3 b. Manual paper feed clutch
1) Open the right door unit.
2) Remove the connector cover ADU inner cover.
3) Remove the MF drive connection plate. Disconnect the con-
nector, then remove the manual paper feed clutch unit.
4) Remove the manual paper feed clutch.
c. Discharge brush
d. Detects the right tray paper exit full.
e. Right tray paper exit detection
1) Open the right door unit.
2) Remove the connector cover.
3) Remove the right paper exit upper cabinet unit, and disconnect
the connector.4) Remove the right paper exit PG upper.
5) Check the discharge brush.
6) Remove each sensor mounting plate. Right tray paper exit full
detection (A), right tray paper exit detection (B)
f. ADU reverse gate
1) Open the right door unit.
2) Remove the parts and remove the ADU reverse gate.
A
B
3
2
1 
						

							MX-2300/2700 N/G  DUPLEX SECTION  G – 4 g. ADU gate lower
1) Open the right door unit.
2) Remove the parts, and remove the ADU gate lower.
h. ADU transport open/close detection
i. ADU transport path detection 1
1) Open the right door unit.
2) Remove the ADU inner cover.
3) Disconnect the connector, and remove the reverse PG unit.
4) Remove the ADU transport open/close detector.
5) Remove the ADU stay upper unit.6) Remove the ADU transport path detector 1.
j. Paper exit roller 2 (Drive)
1) Open the right door unit.
2) Remove the connector cover ADU inner cover.
3) Remove the ADU cabinet F and the ADU cabinet R.
4) Remove the reverse PG unit.
5) Remove each parts, then remove the transport roller 2 (drive).
3
1
2
1
2