Sharp Mx 2300n Service Manual

MX-2300/2700 N/G  DUPLEX SECTION  G – 5 k. Transport roller 10 (Drive)
l. Transport roller 11 (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 the upper transport fulcrum holder, and remove the
ADU open/close door.
6) Remove each parts, and remove the trasnport roller 10 (drive)
(A) and the trasnport roller 11 (drive) (B).
m. ADU transport path detection 2
1) Open the right door...

MX-2300/2700 N/G  DUPLEX SECTION  G – 6
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 Transport rollers Mechanism parts{ {{{{{{{{{ { { {
2 Discharge brush✕ ✕✕✕✕✕✕✕✕✕ ✕ ✕ ✕
3Gears✕...

MX-2300/2700 N/G  LSU SECTION  H – 1 MX2700N
Service Manual [H] LSU SECTION
1. Electrical and mechanism relation diagram
CN11 B7P-PH-K-SCN8 CN21
B4P-PH-K-R
S6B-XA B6B-XA
CN2 B12B-PHDSS-BCN7 CN13
CN1 B34B-PHDSS-B
S20B-PHDSS-B B20B-PHDSS-B
CN9 CN14
S22B-PHDSS-B B22B-PHDSS-B
CN4 B6P-PH-K-S PSM2P RCN10
B5P-PH-K-S 1
4
/LSUSS_B24V3
2
19
20
21
22 124V31
2
D-GND
ECLK_LSU_P
ECLK_LSU_N17 /LSUSS_B
21
22 20 15
17
18
194
105
1611
12
13
14
15
16VSYNC_Y_N 1
20
3CH0_N
CH0_P
D-GND 19
1
2
14 13 D-GND CH0_N
D-GND
D-GND...

MX-2300/2700 N/G  LSU SECTION  H – 2
2. Operational descriptions
A. LSU section
(1) Outline
Image data sent from the image process circuit through the mother
are converted into laser beams to be radiated onto the OPC drum
surface. The LSU unit is composed of the primary system including
optical elements such as lasers and the polygon mirror and the mir-
ror which assures the optical path and the scan system which
includes the optical elements including the polygon mirror and the
mirror which assures the...

MX-2300/2700 N/G  LSU SECTION  H – 3
3. Disassembly and assembly
A. LSU section
(1) LSU
1) Remove the left cabinet rear lower and the left cabinet. (Refer
to Left Cabinet Rear Lower and Left Cabinet in External Outfit
Section.)
2) Remove the waste toner box.
3) Remove the LSU left plate PA.4) Remove the LSU slant adjustment  plate screw (A), and loosen
the screw (B). 
Remove the LSU shaft fixing plate. Remove the screws.
5) Shift the front side of the LSU shaft from (A) to (B), and remove
the LSU shaft....

MX-2300/2700 N/G  LSU SECTION  H – 4 3) Insert the LSU cleaning rod and slide it back and forth a few
times to clean the dust-proof glass.
b. Polygon motor
1) Remove the LSU.
2) Remove the screws, and remove the LSU CNT PWB cover R.
3) Remove the screws, then lift up the LSU CNT PWB cover F
(A).
Remove the screws, and lift up the polygon motor unit (B).4) Remove the connector and the screws, then remove the poly-
gon motor.
* When installing, do not touch the moving section of the poly-
gon mirror and...

MX-2300/2700 N/G  LSU SECTION  H – 5 b. Cleaning base
1) Remove the waste toner box.
2) Remove the LSU cleaning stick from the front cover.
3) Remove the cleaning base from the LSU cleaning rod. 
4. Maintenance
A. LSU 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...

MX-2300/2700 N/G  PHOTOCONDUCTOR SECTION  i – 1 MX2700N
Service Manual [i] PHOTOCONDUCTOR SECTION
1. Electrical and mechanism relation diagram
CN9B3P-PH-K-S
AC
PWBCN1
MC-K GB-KGB-C
B6P-PH-K-SCN26 CN2
1TC_CL 3
GB-MHV_REM 7
MC_YMC 6
1TC_K 5
B32B-PHDSS-B 1TC_YMC 4
GB-YP-GND 2
INT24V2 1
B7P-PH-K-S MC-CMYCN1
INT24V2
7
P-GND 6
1TC_YMC 4
1TC_K 3
MC_YMC 2
HV_REM 1
1TC_CL
5
B7P-PH-K-S
1 INT24V2HV_REM#6
5
4
3
2
1 /HV_DATA#
/HV_CLK#
/HV_LD1#INT24V2
P-GND
/HV_CLK#
/HV_LD1#
HV_REM# 20
21
22
23
24
MC PWB 1st TC PWB...

MX-2300/2700 N/G  PHOTOCONDUCTOR SECTION  i – 2
2. Operational descriptions
A. OPC drum section
The OPC drum surface is negatively charged by the main charger.
The laser beam images are radiated to the OPC drum surface by
the laser (writing) unit to form latent electrostatic images.
1) The OPC drum surface is negatively charged by the main
charger.
The main charger grid is provided with the screen grid. The
OPC drum is charged at a voltage virtually same as the volt-
age applied to the screen grid.
2)...

MX-2300/2700 N/G  PHOTOCONDUCTOR SECTION  i – 3 4) The whole surface of the OPC drum is discharged.
By radiating the discharge lamp light to the discharge lens,
light is radiated through the lens to the OPC drum surface.
When the discharge lamp light is radiated to the OPC drum
CGL, positive and negative charges are generated.
Positive charges generated in CGL are attracted to the nega-
tive charges on the OPC drum surface. On the other hand,
negative charges are attracted to positive charges in the...