Sharp MX-M350N / MX-M350U / MX-M450N / MX-M450U (serv.man5) Service Manual ▷ View online
MX-M350/M450 N/U UNPACKING AND INSTALLATION 6 - 12
5) Connect the cable.
Connect the scanner unit connector with the printer connector,
and fix the connectors with two screws attached to the con-
nector.
and fix the connectors with two screws attached to the con-
nector.
Note: When inserting the connector, be careful not to break the
pins, and connect according to the guide.
6) Attach the paper exit tray.
Attach the paper exit tray to the scanner unit as shown in the
figure.
figure.
8. Automatic developer adjustment
1) Attach the cabinets which were removed.
2) Close the left door.
At that time, keep the front door open.
Note: The automatic developer adjustment must be performed by
entering the simulation mode with the front door open. If the
power is turned on with the front door closed, warm-up is
performed to supply toner to the developing unit. As a
performed to supply toner to the developing unit. As a
result, the reference toner density cannot be obtained.
3) Insert the power plug into the power outlet.
4) Enter simulation 25-2.
5) Close the front door.
(LCD Display)
6) Press the [START] key, and the automatic developer adjust-
ment will be performed.
During execution of the automatic developer adjustment,
“EXECUTING...” is displayed and the toner sensor value is
indicated on the LCD. (DEVE REFERENCE)
“EXECUTING...” is displayed and the toner sensor value is
indicated on the LCD. (DEVE REFERENCE)
7) After about 2 min, the adjustment value is stored in the
machine. Check that the mode was normally completed.
In case of an error end, remove the cause of the error, and
execute the automatic developer adjustment again.
execute the automatic developer adjustment again.
8) Turn off/on the power, and the machine returns to the normal
mode and enters the warm-up mode.
9. Print test
1) After completion of warm-up (normal mode), select [SYSTEM
SETTINGS]
→
[Data list up] to display the menu.
2) Print [ALL SETUP LIST] to check and confirm the print quality.
3) Press the [SYSTEM SETTINGS] key again to return to the
normal menu.
10. Distortion adjustment
Note: This adjustment must be performed after installing the
machine and its peripheral devices.
There is basically no need because it has been made prior to ship-
ping. If there should be a distortion as shown in the figure below,
perform the adjustment according to the following procedures.
ping. If there should be a distortion as shown in the figure below,
perform the adjustment according to the following procedures.
1) Use a level gauge to check to confirm that the scanner unit is
installed horizontally.
Make a copy, and if any distortion is found as shown in Fig 1 or
Fig. 2, loosen the scanner fixing screw (M4 x 8) and the cam A
fixing screw (M3 x 12) to make an adjustment.
Fig. 2, loosen the scanner fixing screw (M4 x 8) and the cam A
fixing screw (M3 x 12) to make an adjustment.
• Case of Fig. 1
Shift the cam A in the direction of A by the difference of the image.
For one scale (one groove), shift by 0.5mm.
After shifting the cam, tighten the cam A fixing screw (M3 x 12).
Make a copy again and check to confirm that there is no distortion
on the image.
Make a copy again and check to confirm that there is no distortion
on the image.
Press [START] key.
Press [SYSTEM SETTINGS] key, and the operation
is stopped immediately or after 2 min.
is stopped immediately or after 2 min.
Scanner cable
Screws
Paper exit tray
SIMULATION 25-2
AUTOMATIC DV ADJUSTMENT. PRESS START.
HUMIDITY AREA:
70.0
-
72.5
TEMPERATURE AREA:
70.0
-
72.5
DEVE REFERENCE:
128
SIMULATION 25-2
AUTOMATIC DV ADJUSTMENT. EXECUTING···.
HUMIDITY AREA:
70.0
-
72.5
TEMPERATURE AREA:
70.0
-
72.5
DEVE REFERENCE:
118
Normal
end:
Returns to the initial window (PRESS
START display).
START display).
Abnormal
end: Returns to the initial window (PRESS
START display), and indicates the trouble
display (TROUBLE! EE-**).
display (TROUBLE! EE-**).
Fixing screw
(M4x8)
First copy image
[Fig. 1]
Difference
Image
Paper
MX-M350/M450 N/U UNPACKING AND INSTALLATION 6 - 13
• Case of Fig. 2
Shift the cam A in the direction of B by the difference of the image.
For one scale (one groove), shift by 0.5mm.
After shifting the cam, tighten the cam A fixing screw (M3 x 12).
Make a copy again and check to confirm that there is no distortion
on the image.
Make a copy again and check to confirm that there is no distortion
on the image.
After adjustment, tighten the fixing screw (M3 x 12) and the scan-
ner fixing screw (M4 x 8).
ner fixing screw (M4 x 8).
Attach the decoration seal to the screw hole.
(DSPF scan position automatic adjustment)
1) Execute SIM 53-8 after completion of the distortion adjust-
ment.
2) If any distortion is made after execution of the simulation, exe-
cute the MB rail position adjustment. (Refer to "3-A OC scan
distortion adjustment (MB-B rail height adjustment)" in [8]
ADJUSTMENTS.)
distortion adjustment (MB-B rail height adjustment)" in [8]
ADJUSTMENTS.)
11. Attach the document scanning label
12. Adjuster installation and adjustment
1) Insert the left adjuster into the paper feed desk.
2) Turn each adjuster until it is brought into contact with the floor.
∗
Be sure to install the left adjuster in order to prevent falling down
of the machine.
of the machine.
Note: If the adjusters are not lowered to the specified positions,
the lower stage tray cannot be pulled out.
13. Using the transport handle
1) Remove the screw, and remove the handle.
2) Insert the handle into the left rack notch diagonally upward as
shown in the figure.
3) Attach the screw which was removed in procedure 1) to
secure the handle.
4) Lift the rear edge
of the handle to engage the head with
the rack.
5) After completion of transport, restore the handle to the original
position.
First copy image
[Fig. 2]
Difference
Image
Paper
Reference
Reference
6mm
15mm
1
2
2
2
2
A
A
MX-M350/M450 N/U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 1
[7] MAINTENANCE AND DETAILS OF EACH SECTION
• Self print of set values
Use of SIM 22-6 allows to print the set values and the jam his-
tory of the machine.
These values must be printed before execution of maintenance
or disassembly procedures.
tory of the machine.
These values must be printed before execution of maintenance
or disassembly procedures.
• When assembling, check that the flat cable and the harness
connectors are securely connected.
• When connecting the flat cable, be careful not to break the pins.
When installing the PWB unit and the memory module, use a
Ground Strap to prevent damage caused by electrical dis-
charge.
Ground Strap to prevent damage caused by electrical dis-
charge.
[Maintenance System Table]
1. Engine section
Maintenance cycle : 200K
✕ Check (Clean, replace, or adjust as necessary.) ❍ Clean
▲ Replace
∆
Adjust
✩ Lubricate
❏ Move position
Unit name
Part name
When
calling
100K 200K 300K 400K 500K 600K 700K 800K
Remark
Drum peripheral
Drum
✕
▲
✕
▲
✕
▲
✕
▲
Cleaner blade
✕
▲
✕
▲
✕
▲
✕
▲
Replace at 200K or 1 year.
P/G No.: [10]-49
P/G No.: [10]-49
Toner reception seal
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [10]-42
Side molt F
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [10]-33
Side molt R
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [10]-37
Transfer roller
✕
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [5]-8
Discharge plate
✕
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [5]-2
TR bearing (F/R)
✕
✕
✕
▲
✕
✕
✕
▲
P/G No.: [5]-9, 18
Transfer roller collar
✕
✕
✕
▲
✕
✕
✕
▲
P/G No.: [5]-10
After-transfer star ring
✕
✕
✕
✕
✕
✕
✕
✕
P/G No.: [5]-19
TR gear
✕
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [5]-15
Drum separation pawl unit
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [5]-501
MC unit
✕
❍
▲
❍
▲
❍
▲
❍
▲
Includes the screen grid, the
charging plate, and the MC
cleaner.
❍: Charging plate cleaning by
the MC cleaner
P/G No.: [9]-901
charging plate, and the MC
cleaner.
❍: Charging plate cleaning by
the MC cleaner
P/G No.: [9]-901
Paper guide
❍
❍
❍
❍
❍
❍
❍
❍
❍
Developing
section
section
Developer
▲
▲
▲
▲
▲
▲
▲
▲
Supplied when installing
DV blade
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [11]-55
DSD collar
❍
❍
❍
❍
❍
❍
❍
❍
DV side seal F
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [11]-38
DV side seal R
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [11]-43
Toner cartridge
–
–
–
–
–
–
–
–
Attached when installing./
750g, user replacement for every
35K.
750g, user replacement for every
35K.
Fusing section
Upper heat roller
✕
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [7]-46
Lower heat roller
✕
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [7]-22
Upper separation pawl
❍
❍
▲
❍
▲
❍
▲
❍
▲
P/G No.: [7]-3
Lower separation pawl
❍
❍
▲
❍
▲
❍
▲
❍
▲
P/G No.: [7]-41
Thermistor
✕
✕
✕
✕
✕
✕
✕
✕
✕
Clean and remove paper dust.
Upper heat roller gear
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [7]-47
Paper guides
❍
❍
❍
❍
❍
❍
❍
❍
❍
Gears
✩
✩
✩
✩
✩
✩
✩
✩
CL roller
✕
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [7]-52
CL roller bearing
✕
✕
▲
✕
▲
✕
▲
✕
▲
P/G No.: [7]-53
Filters
Ozone filter
▲
▲
▲
▲
▲
▲
▲
▲
P/G No.: [12]-2
Paper feed
section
section
Pick-up roller
✕
✕
✕
✕
✕
✕
✕
✕
✕
Note 1
Paper feed roller
✕
✕
✕
✕
✕
✕
✕
✕
✕
Note 1
Separation roller
✕
✕
✕
✕
✕
✕
✕
✕
✕
Note 1
Torque limiter
✕
✕
✕
✕
✕
✕
✕
✕
✕
Note 1
Transport section
Paper exit
reverse section
Paper exit
reverse section
Resist roller
✕
❍
❍
❍
❍
❍
❍
❍
❍
Transport rollers
✕
❍
❍
❍
❍
❍
❍
❍
❍
Transport paper guides
❍
❍
❍
❍
❍
❍
❍
❍
❍
Paper dust remover unit
❍
❍
▲
❍
▲
❍
▲
❍
▲
P/G No.: [14]-51
Optical reflection sensor
❍
❍
❍
❍
❍
❍
❍
❍
❍
PS roller unit section
Drive section
Gears (Specified position)
✕
✩
✩
✩
✩
✩
✩
✩
✩
Belts
✕
✕
✕
✕
✕
✕
✕
✕
✕
Image quality
✕
✕
✕
✕
✕
✕
✕
✕
✕
Other
Sensors
✕
✕
✕
✕
✕
✕
✕
✕
Clean with air.
Note 1: Replacement reference: Use the counter value of each paper feed port as the replacement reference.
Paper feed roller/Separation pad/Torque limiter section (Include Desk, Multi purpose): 100K or 1 year
MX-M350/M450 N/U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 2
2. Scanner / DSPF
Maintenance cycle : 200K
✕ Check (Clean, replace, or adjust as necessary.) ❍ Clean
▲ Replace
∆
Adjust
✩ Lubricate
❏ Move position
Unit name
Part name
When
calling
100K 200K 300K 400K 500K 600K 700K 800K
Remark
Optical
section
section
Mirror/Lens/Reflector/Sensors
❍
❍
❍
❍
❍
❍
❍
❍
❍
Table glass/Dust-proof glass/OC
❍
❍
❍
❍
❍
❍
❍
❍
❍
White reference glass
❍
❍
❍
❍
❍
❍
❍
❍
❍
Rails
✩
✩
✩
✩
✩
✩
✩
✩
Drive belt/Drive wire/Pulley
✕
✕
✕
✕
✕
✕
✕
✕
DSPF
Paper feed
section
section
Pick-up roller
❍
❍
❍
❍
❍
❍
❍
❍
❍
Note 2
Paper feed roller
❍
❍
❍
❍
❍
❍
❍
❍
❍
Note 2
Separation mylar lower
❍
❍
❍
❍
❍
❍
❍
❍
❍
Note 2
Separation pad
❍
❍
❍
❍
❍
❍
❍
❍
❍
Note 2
Transport section PS roller
❍
❍
❍
❍
❍
❍
❍
❍
❍
Exposure section
(Dust-proof glass)
(Dust-proof glass)
❍
❍
❍
❍
❍
❍
❍
❍
❍
Paper exit
section
section
Paper exit roller
❍
❍
❍
❍
❍
❍
❍
❍
❍
Other
Sensors
❍
❍
❍
❍
❍
❍
❍
❍
Clean with air.
Note 2: Replacement reference: Replace by using the SPF counter value as an indication.
Paper feed section pickup roller, paper feed roller, separation pad, separation lower mylar lower:
100K or 1 year
100K or 1 year
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