DOWNLOAD Sharp MX-3050N / MX-3060N / MX-3070N / MX-3550N / MX-3560N / MX-3570N / MX-4050N / MX-4060N / MX-4070N (serv.man5) Service Manual ↓ Size: 105.17 MB | Pages: 127 in PDF or view online for FREE

Model
MX-3050N MX-3060N MX-3070N MX-3550N MX-3560N MX-3570N MX-4050N MX-4060N MX-4070N (serv.man5)
Pages
127
Size
105.17 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Service Manual (Revised November 2017).
File
mx-3050n-mx-3060n-mx-3070n-mx-3550n-mx-3560n-mx-35.pdf
Date

Sharp MX-3050N / MX-3060N / MX-3070N / MX-3550N / MX-3560N / MX-3570N / MX-4050N / MX-4060N / MX-4070N (serv.man5) Service Manual ▷ View online

CONTENTS
1
NOTE FOR SERVICING
1.  Precautions for servicing . . . . . . . . . . . . . . . . . . . . . . . . . i
2.  Warning for servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
3.  Note for installing site. . . . . . . . . . . . . . . . . . . . . . . . . . . . i
4.  Note for handling PWB and electronic parts  . . . . . . . . . .ii
5.  Note for repairing/replacing the LSU . . . . . . . . . . . . . . .  iii
6.  Note for handling the drum unit, the transfer unit, 
the developing unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  iii
7.  Screw tightening torque . . . . . . . . . . . . . . . . . . . . . . . . .  iii
[1] PRODUCT OUTLINE
1. System diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
2. Option list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
[2] SPECIFICATIONS
1. Basic specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2. Copy function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
3. Printer function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
4. Image send function. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
5. Dimension and weight . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
6. Environmental conditions . . . . . . . . . . . . . . . . . . . . . . . 2-6
[3] CONSUMABLE PARTS
1. Consumable system table . . . . . . . . . . . . . . . . . . . . . . 3-1
2. Maintenance parts list  . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3. Definition of developer/drum life end . . . . . . . . . . . . . . 3-7
4. Production number identification . . . . . . . . . . . . . . . . . 3-8
5. Environmental conditions . . . . . . . . . . . . . . . . . . . . . . . 3-9
[4] EXTERNAL VIEW AND INTERNAL STRUCTURE
1. External view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
2. Internal structure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
3. I/F connectors  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
4. Operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
5. DSPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
6. RSPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
7. Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
8. Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
9. Clutches and solenoids . . . . . . . . . . . . . . . . . . . . . . . 4-16
10. Motors  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
11. Rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
12. Lamps  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
13. Fans and filter  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
14. PWB/memory device . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
15. Fuses and thermostats  . . . . . . . . . . . . . . . . . . . . . . . 4-24
[5] ADJUSTMENTS AND SETTINGS
1. General  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
2. Adjustment item list . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
3. Details of adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
[6] SIMULATION
1. General and purpose . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
2. Function of each key  . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
3. Starting the simulation . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
4. List of simulation codes . . . . . . . . . . . . . . . . . . . . . . . . 6-2
5. Details of simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
[7] SELF DIAG AND TROUBLE CODE
1. Trouble code and troubleshooting . . . . . . . . . . . . . . . . 7-1
2. JAM and troubleshooting . . . . . . . . . . . . . . . . . . . . . . 7-40
3. Image send communication report code  . . . . . . . . . . 7-42
[8] FIRMWARE UPDATE
1. Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
2. Update procedure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
[9] MAINTENANCE
1. Works necessary when executing the maintenance  . . 9-1
2. Display of maintenance execution timing. . . . . . . . . . . 9-1
3. Maintenance list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
[10] DISASSEMBLY AND ASSEMBLY
1. Disassembly of Units . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
2. Disassembly and assembly of each unit  . . . . . . . . . 10-30
[11] OPERATIONAL DESCRIPTIONS
1. Operation panel section . . . . . . . . . . . . . . . . . . . . . . . 11-1
2. Scanner section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2
3. Manual paper feed section. . . . . . . . . . . . . . . . . . . . . 11-4
4. Tray paper feed section . . . . . . . . . . . . . . . . . . . . . . . 11-6
5. Paper registration section 
(Paper transport section) . . . . . . . . . . . . . . . . . . . . . . 11-9
6. Paper exit section. . . . . . . . . . . . . . . . . . . . . . . . . . . 11-10
7. ADU section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-12
8. LSU section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-14
9. OPC drum section . . . . . . . . . . . . . . . . . . . . . . . . . . 11-16
10. Toner supply section  . . . . . . . . . . . . . . . . . . . . . . . . 11-18
11. Developing section. . . . . . . . . . . . . . . . . . . . . . . . . . 11-20
12. Transfer section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-22
13. Waste toner collection section . . . . . . . . . . . . . . . . . 11-25
14. Fusing section  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-27
15. DSPF section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-30
16. RSPF section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-36
17. Fan and filter  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-42
[12] ELECTRICAL SECTION
1. Block diagram  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
2. Power line diagram  . . . . . . . . . . . . . . . . . . . . . . . . . 12-10
3. Actual wiring chart . . . . . . . . . . . . . . . . . . . . . . . . . . 12-12
[13] OTHERS
1. TOOL LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
2. VARIOUS STORAGE DATA HANDLING . . . . . . . . . . 13-1
3. Necessary steps when replacing the PWB, 
HDD and the mSATA SSD . . . . . . . . . . . . . . . . . . . . . 13-1
1
: ‘16/Feb.
1
MX-4070N  NOTE FOR SERVICING – i
MX-4070N
Service Manual
 
NOTE FOR SERVICING
1. Precautions for servicing
• When servicing, disconnect the power plug, the printer cable, the
network cable, and the telephone line from the machine, except
when performing the communication test, etc.
It may cause an injury or an electric shock.
• There is a high temperature area inside the machine. Use extreme
care when servicing.
It may cause a burn.
• There is a high voltage section inside the machine which may cause
an electric shock. Be careful when servicing.
• Do not disassemble the laser unit. Do not insert a reflective material
such as a screwdriver in the laser beam path.
It may damage eyes by reflection of laser beams.
• When servicing with the machine operating, be careful not to
squeeze you hands by the chain, the belt, the gear, and other driving
sections.
• Do not leave the machine with the cabinet disassembled.
Do not allow any person other than a serviceman to touch inside the
machine. It may cause an electric shock, a burn, or an injury.
• When servicing, do not breathe toner, developer, and ink exces-
sively. Do not get them in the eyes.
If toner, developer, or ink enters your eyes, wash it away with water
immediately, and consult a doctor if necessary.
• The machine has got sharp edges inside. Be careful not to damage
fingers when servicing.
• Do not throw toner or a toner cartridge in a fire. Otherwise, toner
may ignite and burn you.
• When replacing a lithium battery on a PWB, only use the specified
replacement battery.
If a battery of different specification is used, it may cause a machine
malfunction or breakdown.
• When carrying a unit with PWB or electronic parts installed to it, be
sure to put it in an anti-static-electricity bag.
It may otherwise cause a machine breakdown or malfunction.
2. Warning for servicing
• Be sure to connect the power cord only to a power outlet that meets
the specified voltage and current requirements.
Avoid complex wiring, which may lead to a fire or an electric shock.
It may cause a fire or an electric shock.
• If there is any abnormality such as a smoke or an abnormal smell,
interrupt the job and disconnect the power plug.
It may cause a fire or an electric shock.
• Be sure to connect the grounding wire. If an electric leakage occurs
without grounding, a fire or an electric shock may result.
To protect the machine and the power unit from lightening, ground-
ing must be made.
• When connecting the grounding wire, never connect it to the follow-
ing points.
 Gas tube
 Lightning conductor
 A water pipe or a water faucet, which is not recognized as a
grounding object by the authorities.
 Grounding wire for telephone line
It may cause an explosion, a fire or an electric shock.
• Do not damage, break, or stress the power cord.
Do not put heavy objects on the power cable. Do not stress, forcibly
bend, or pull the power cord.
It may cause a fire or an electric shock.
• Keep the power cable away from a heat source.
Do not insert the power plug with dust on it into a power outlet.
It may cause a fire or an electric shock.
• Do not place liquids or foreign metallic objects inside the machine.
It may cause a fire or an electric shock.
• Do not touch the power cord, insert the phone jack, operate the
machine, or perform service on the machine with wet or oily hands.
It may cause an electric shock.
3. Note for installing site
Do not install the machine at the following sites.
• Place of high temperature, high humidity, low temperature, low
humidity, place under an extreme change in temperature and
humidity.
Paper may get damp and form condensation inside the machine,
causing paper jam or copy dirt.
For operating and storing conditions, refer to the specifications
described later.
• Place of extreme vibrations
It may cause a breakdown.
• Poorly ventilated place
An electrostatic type copier will produce ozone.
The quantity of ozone produced is designed to a low level so as not
to affect human bodies. However, continuous use of such a machine
may produce an ozone smell. Install the machine in a well ventilated
place.
CAUTION
DOUBLE POLE/NEUTRAL FUSING
 MX-4070N  NOTE FOR SERVICING – ii
• Place of direct sunlight.
Plastic parts and ink may be deformed, discolored, or may undergo
qualitative change.
It may cause a breakdown or output quality problems.
• Place which is full of organic gases such as ammonium
The organic photo-conductor (OPC) drum used in the machine may
undergo qualitative change due to organic gases such as ammo-
nium.
Installation of this machine near a diazo-type copier and blue print
machine may result in poor quality output.
• Place of much dust
When dust or contaminants enters the machine, it may cause a
breakdown or poor quality output.
• Place near a wall
The machine will require ventilation.
If ventilation is not proper, poor output or machine failure may result.
• Unstable or irregular surface
If the machine is dropped or tips over, it may cause injury or
machine malfunction.
Use an optional desk or an exclusive-use desk.
When using the optional desk, be sure to fix the adjuster and lock
the casters.
4. Note for handling PWB and electronic parts
When handling the PWB and the electronic parts, be sure to observe
the following precautions in order to prevent against damage by static
electricity.
• When in transit or storing, put the parts in an anti-static bag or an
anti-static case and do not touch them with bare hands.
• When and after removing the parts from an anti-static bag (case),
use an earth band as shown below:
• Put an earth band to your arm, and connect it to the machine.
• When repairing or replacing an electronic part, perform the proce-
dure on an anti-static mat.
11-13/16" 
(30cm)
11-13/16" 
(30cm)
17-23/32" 
(45cm)
MX-4070N  NOTE FOR SERVICING – iii
5. Note for repairing/replacing the LSU
When repairing or replacing, be sure to observe the following items.
• When repairing or replacing the LSU, be sure to disconnect the
power plug from the power outlet.
• When repairing or replacing the LSU, follow the procedures
described in this Service Manual.
• When checking the operations after repairing the LSU, keep all the
parts including the cover installed and perform the operation check.
• Do not modify the LSU.
• When visually checking the inside of the machine for the operation
check, be careful not to allow laser beams to enter the eyes.
If the above precaution is neglected or the LSU is modified, ones
safety may be at risk.
6. Note for handling the drum unit, the transfer 
unit, the developing unit
When handling the OPC drum unit, the transfer unit, and the develop-
ing unit, strictly observe the following items.
If these items are neglected, a trouble may be generated in the copy
and print image quality.
Drum unit
• Avoid working at a place with strong lights.
• Do not expose the OPC drum to lights including interior lights for a
long time.
• When the OPC drum is removed from the machine, cover it with
light blocking material. (When using paper, use about 10 sheets of
paper to cover it.)
• Be careful not to attach fingerprints, oil, grease, or other foreign
material on the OPC drum surface.
Transfer unit
• Be careful not to leave fingerprints, oil, grease, or other foreign
material on the transfer roller, primary transfer belt, and the second-
ary transfer roller.
Developing unit
• Be careful not to leave fingerprints, oil, grease, or other foreign
material on the developing unit.
7. Screw tightening torque
The screws used in this machine are largely classified into three types.
These types are classified according to the shape of the screw
grooves and use positions.
The table below shows the types of the screws and the tightening
torques depending on the use position.
When tightening the screws for repair or maintenance, refer to the
table.
However, for the other conditions of tightening screws than specified
on this table, or under special circumstances, the details are described
on the separate page. Refer to the descriptions on such an exception.
Especially for the screw fixing positions where there is an electrode or
a current flows, use enough care to tighten securely to avoid loosen-
ing.
Screw kinds and tightening torques
Normal screws, set screws (including step screws)
Tapping screws (for iron)
Tapping screw (for plastic)
Screw 
diameter
Material to be 
fixed
Tightening 
torque 
(N
m)
Tightening 
torque 
(kgf
cm)
Tightening 
torque 
(lbft)
M2.6
Steel plate
0.8 - 1.0
8 - 10
0.6 - 0.7
M3
Steel plate
1.0 - 1.2
10 - 12
0.7 - 0.9
M4
Steel plate
1.6 - 1.8
16 - 18
1.2 - 1.3
Screw 
diameter
Material to be 
fixed
Tightening 
torque 
(N
m)
Tightening 
torque 
(kgf
cm)
Tightening 
torque 
(lbft)
M3
Steel plate 
(Plate thickness 
0.8mm or above)
1.0 - 1.2
10 - 12
0.7 - 0.9
M4
Steel plate 
(Plate thickness 
0.8mm or above)
1.6 - 1.8
16 - 18
1.2 - 1.3
M3
Steel plate 
(Plate thickness 
less than 0.8mm)
0.6 - 0.8
6 - 8
0.4 - 0.6
M4
Steel plate 
(Plate thickness 
less than 0.8mm)
1.2 - 1.4
12 - 14
0.9 - 1.0
Screw 
diameter
Material to be 
fixed
Tightening 
torque 
(N
m)
Tightening 
torque 
(kgf
cm)
Tightening 
torque 
(lbft)
M3
Plastic resin
0.6 - 0.8
6 - 8
0.4 - 0.6
M4
Plastic resin
1.0 - 1.2
10 - 12
0.7 - 0.9
Page of 127
Display

Sharp MX-3050N / MX-3060N / MX-3070N / MX-3550N / MX-3560N / MX-3570N / MX-4050N / MX-4060N / MX-4070N (serv.man5) Service Manual ▷ Download

  • DOWNLOAD Sharp MX-3050N / MX-3060N / MX-3070N / MX-3550N / MX-3560N / MX-3570N / MX-4050N / MX-4060N / MX-4070N (serv.man5) Service Manual ↓ Size: 105.17 MB | Pages: 127 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp MX-3050N / MX-3060N / MX-3070N / MX-3550N / MX-3560N / MX-3570N / MX-4050N / MX-4060N / MX-4070N (serv.man5) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp MX-3050N / MX-3060N / MX-3070N / MX-3550N / MX-3560N / MX-3570N / MX-4050N / MX-4060N / MX-4070N (serv.man5) Copying Equipment. Information contained in Sharp MX-3050N / MX-3060N / MX-3070N / MX-3550N / MX-3560N / MX-3570N / MX-4050N / MX-4060N / MX-4070N (serv.man5) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.