Sharp Mx 2300n Service Manual

MX-2300/2700 N/G  PHOTOCONDUCTOR SECTION  i – 4 2) Remove the waste toner bottle unit.
3) Loosen the blue screw. Check to confirm that lock is released,
and open the drum positioning unit.
NOTE: When the transfer belt tension of the primary transfer
unit is released manually, turn on the power again after com-
pletion of the work. (Power OFF-ON) This procedure initializes
the transfer roller to return it to the home position.
4) Loosen the fixing screw of the developing unit on the left side
of each...

MX-2300/2700 N/G  PHOTOCONDUCTOR SECTION  i – 5 4) Disengage the lock pawl with a screwdriver, and remove the
MC cleaner shaft. 
5) Release the pawl, and remove the process cover. Remove the
MC charger unit.
c. Side seal F, R
d. Toner reception seal
1) Remove each drum unit from the machine.
2) Remove the OPC drum.
3) Remove the MC charger unit.
4) Remove the side seal F/R and the toner reception seal.
* When attaching the side seal F/R and the toner reception
seal, arrange so that they are in the ranges...

MX-2300/2700 N/G  PHOTOCONDUCTOR SECTION  i – 6 b. Waste toner full detection switch
1) Remove the frame cover. (Refer to Frame Cover in External
Outfit Section.)
2) Remove the connector and the screws, then remove the waste
toner drive unit.3) Remove the screw and the spring, and remove the waste toner
box empty lever. 
Disengage the connector and the pawl, and remove the waste
toner full detection switch. 
4. Maintenance
✕: Check (Clean, replace, or adjust according to necessity.) {: Clean ▲: Replace...

MX-2300/2700 N/G  PHOTOCONDUCTOR SECTION  i – 7
3,67,98,10
2,5 7,9
1,4
11 

MX-2300/2700 N/G  TONER SUPPLY SECTION  J – 1 MX2700N
Service Manual [J] TONER SUPPLY SECTION
1. Electrical and mechanism relation diagram
A. Toner supply section
CN12CN5CRUM(BLACK)
CRUM(K)
RSM2P P
CRUM(CYAN)
CRUM(C)
1
RSM2P P
RSM2P P
RSM2P PCRUM(MAGENTA)
CRUM(M)
CRUM(YELLOW)
CRUM(Y)
B10B-PHDSS-B P SM10P R
B32B-PHDSS-B
DF11-6DP-SP1 DF11-6DP-SP1
CRM_K_CK#4D-GND
7
CRM_M_DT#
1 5V_CRUM
2CRM_K_DT#
5V_CRUM
5CRM_C_DT#2
4CRM_C_DT#
CRM_C_CK#
D-GND 3
1 6
9
CRM_Y_DT#
8CRM_M_CK#
1
2
3
4
6 5
7
85V_CRUM 2CRM_K_DT#4...

MX-2300/2700 N/G  TONER SUPPLY SECTION  J – 2
2. Operational descriptions
When the toner cartridge is inserted to the machine, the lock pawl
is disengaged and the supply shutter is opened. 
The transport pipe shutter is opened and closed by the shaft which
is linked with the developing lever. 
The toner supply section of the developing unit is opened and
closed when the open/close lever on the unit hits the block on the
machine. 
Signal name Name Function/Operation
TNM Toner motor (Y, M, C, K) Toner...

MX-2300/2700 N/G  TONER SUPPLY SECTION  J – 3
3. 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.)
Color supply60
K120
K180
K240
K300
K360
K
1 Toner cartridge 
(BK/C/M/Y)Monochrome, 
color...

MX-2300/2700 N/G  DEVELOPING SECTION  K – 1 MX2700N
Service Manual [K] DEVELOPING SECTION
1. Electrical and mechanism relation diagram
CN12
B7P-PH-K-S
B7P-PH-K-S/DVM_K_DINT24V2
P-GND
/DVM_CL_CKINT24V2
P-GND
4 1
2
5
6
7 /DVM_CL_D
DVM_CL_LD
5V /DVM_K_CK
/DVM_K_D1
2
4 INT24V2
P-GND
DVM_K_LD
5V5
6
7
INT24V2 6
/DVM_K_CK
10
12
DVM_K_LD 4
1 5
3
9
112
P-GND
/DVM_CL_CKDVM_CL_LD/DVM_CL_D
PHNR-10-H,BU10P-TR-P-H
CN15
C QR/P8-8P P
S4P-PH-K-S
PHNR-10-H,BU10P-TR-P-H
C QR/P8-8P P
S4P-PH-K-S
PHNR-10-H,BU10P-TR-P-H
C...

MX-2300/2700 N/G  DEVELOPING SECTION  K – 2
2. Operational descriptions
Electrostatic latent images generated on the OPC drum by the
laser (writing) units (laser image ray) are converted into visible
images by toner.
Toner and carrier in the developing unit are agitated and trans-
ported by the mixing roller.
By mixing and transporting, toner and carrier are negatively
charged due to mechanical friction.
The developing bias voltage (AC component and negative DC
component) is applied to the developing...

MX-2300/2700 N/G  DEVELOPING SECTION  K – 3 3) Check that the lock is released as shown in (A). 
Loosen the blue screw, and open the drum positioning unit. 
* When the lock is not released, use a screwdriver to turn the
screw (B) counterclockwise so that it is fit as (A). 
4) Open the DV lock lever, and release the fixing screw. (1 posi-
tion for each color)
5) Pinch the knob and remove the development unit.a. Developer
1) Remove the developing unit.
2) Remove two fixing screws of the DV cover.
3) Hold...