Sharp Mx 2300n Service Manual

MX-2300/2700 N/G  DEVELOPING SECTION  K – 4
4) Take out the old developer, and insert the new developer.
* When replacing developer, use an extreme care not to drop
developer on the drive section (marked with {).
(Note for cleaning the developing unit)
If the developing unit is cleaned with a cleaner or an air blower
with much developer in the developing unit, static electricity
may be accumulated in the unit. In order to prevent against
this, note the following items.
* If metal part is brought into...

MX-2300/2700 N/G  DEVELOPING SECTION  K – 5 e. DV initial PWB
f. Density sensor
1) Remove the developing unit.
2) Remove the screw, and remove the DV guide. Disconnect the
connector, and remove the DV initial PWB (A).
Remove the screw, and diisconnect the connector, and
remove the density sensor (B).g. Toner filter
1) Remove the developing unit.
2) Remove the toner filter cover and the toner filter.
4. Maintenance
✕: Check (Clean, replace, or adjust according to necessity.) {: Clean ▲: Replace U: Adjust...

MX-2300/2700 N/G  TRANSFER SECTION  L – 1 MX2700N
Service Manual [L] TRANSFER SECTION
1. Electrical and mechanism relation diagram
Signal name Name Functions and operations
1TC_CMY Color trasnfer high voltage signal
1TC_K B/W transfer high voltage signal
1TNFD Waste toner full detection switch Waste toner full detection
1TUD_CL Transfer belt separation CL detection Color transfer roller position detection signal
1TUD_K Transfer belt separation BK detection B/W transfer roller position detection signal...

MX-2300/2700 N/G  TRANSFER SECTION  L – 2
2. Operational descriptions
A. Outline
In this section, a high voltage is applied to transfer images to the
intermediate transfer belt and toner images on the intermediate
transfer belt are transferred to paper by the secondary transfer belt. 
B. Primary (intermediate) transfer roller 
separation mechanism and content
The primary transfer roller performs all pressure contact, all sepa-
ration, and only black contact depending on the operation mode. 
When the...

MX-2300/2700 N/G  TRANSFER SECTION  L – 3
3. Disassembly and assembly
A. Primary transfer
(1) Primary transfer unit
1) Open the front cover.2) Open the right door unit.
3) Loosen the blue screw.
4) Turn the blue screw (A) counterclockwise. Making sure that
the lock is released (B), open and then pull out the drum posi-
tioning unit.
* Failure to complete this step may damage the intermediate
transfer belt.
5) Hold the specified position, and remove the primary transfer
unit. 
(NOTE) 
When the transfer...

MX-2300/2700 N/G  TRANSFER SECTION  L – 4 a. Intermediate transfer belt
* Do not replace the belt, blade, and primary transfer CL roller sep-
arately. When any of the three parts needs to be replaced,
replace the other two parts as well.
* When replacing the belt, be sure to apply stearic acid (UKOG-
0312FCZZ) and strontium titanate according to the instructions.
1) Remove the primary trasnfer unit.
2) Remove the cleaner unit.
3) Remove the transfer guide plate left unit.
4) Remove the parts.
5) Fold the...

MX-2300/2700 N/G  TRANSFER SECTION  L – 5 b. Primary transfer CL roller
1) Remove the primary transfer unit.
2) Remove the transfer guide plate left unit.
3) Remove the screw, and remove the primary transfer CL roller
installation plate unit.
Remove the waste toner drive motor from the waste toner
drive unit.
* After assembling, check to confirm that it is not set at the
pressure release position.
c. Intermediate transfer blade
1) Remove the primary transfer unit, and put it upside down.
2) Remove the...

MX-2300/2700 N/G  TRANSFER SECTION  L – 6 h. Transfer drive roller
1) Remove the primary trasnfer unit.
2) Remove the cleaner unit.
3) Remove the intermediate transfer belt.
4) Clean the transfer drive roller.
i. Transfer follower roller
j. Tension roller
1) Remove the primary trasnfer unit.
2) Remove the cleaner unit.
3) Remove the intermediate transfer belt.
4) Clean the trasnfer follower roller (A) and the tension roller (B).
k. Roller cleaning brush
1) Remove the primary trasnfer unit.
2) Remove the...

MX-2300/2700 N/G  TRANSFER SECTION  L – 7 * When attaching the transfer toner reception seal, position
the seal within the specified ranges, referring to the refer-
ence lines as indicated below.
(2) Others
a. Transfer belt separation CL detection
b. Transfer belt separation BK detection
1) Remove the primary trasnfer unit.
2) Remove the developing unit.
3) Remove the drum unit.
4) Check the transfer belt separation CL detection (A) and the
transfer belt separation BK detection (B). 
B. Secondary...

MX-2300/2700 N/G  TRANSFER SECTION  L – 8 3) Remove the secondary belt transfer frame.
4) Remove each parts, and remove the secondary follower roller.
5) Remove the secondary transfer belt.
d. Secondary transfer roller
1) Remove the secondary trasnfer unit.
2) Remove the secondary transfer belt.
3) Remove the bearing on the front side, and remove the second-
ary transfer roller. e. Secondary belt drive roller
1) Remove the secondary trasnfer unit.
2) Remove the secondary transfer belt.
3) Remove each...