DOWNLOAD Sharp MX-M623U / MX-M753U (serv.man7) Service Manual ↓ Size: 13.53 MB | Pages: 104 in PDF or view online for FREE

MX-M753N  MX-M623N/M623U/M753N/M753U  1 – 4

7)

Remove the slope.

* Slope: Parts

8)

Attach the slope to the concave section of the skid.

9)

Hold the machine grips and push them down in the arrow
direction.

NOTE: This machine includes a hard disk drive, which must be

protected against vibrations and shocks. 
Never move the machine with the power ON.

NOTE: When the machine is moved over a bump, hold the grip on

the right side of the machine to lift and cross the bump
over. This is because the casters may be broken for a big
bump.

1)

Check that all the parts are in the package.

Skid slope

DKiT-0367FCZZ

1

Adjuster cover

x 1

2

Adjuster cover fixing screw

x 3

3

Operation manual storage cover

x 1

4

Driver (CD-ROM)

x 1

5

Operation manual

x 1

6

Delivery and installation report

x 1

1

2

3

4

5

6

MX-M753N  MX-M623N/M623U/M753N/M753U  1 – 5

1)

Move the main unit to the installing position, and turn the
adjuster to fix the main unit.

2)

Remove the bottom tray from the main unit.

3)

Install the adjuster cover to the main unit.

4)

Insert the bottom tray into the main unit.

Remove the No. 2/3 mirror base fixing screw and the label of note
for unpacking on the left side.

Remove the paper feed tray rotation plate fixing screw and the
label of note for tray.
[Tray 1, Tray 2]

[Tray 3, Tray 4]

1

No. 2/3 mirror base lock screw

2

Tray rotation plate fixing material

MX-M753N  MX-M623N/M623U/M753N/M753U  1 – 6

1)

Pull the knob on the left door to pull out the left door.

2)

Turn the pressing screw in the fusing section as shown in the
figure below (fully loosen them) to press the heat rollers
together.

3)

Remove the separation pawl fixing block from the process unit.

4)

Replace the left door.

1)

Open the front cabinet.

2)

Loosen the blue screw of the process cover, and tilt down the
process cover toward you.

3)

Loosen the blue screw which is fixing the developing unit.

4)

While pressing the developing unit lock lever, pull out the
developing unit.
Hold the strap of the developing unit and remove the develop-
ing unit.

5)

Remove the screws and remove the DV cover.

2

1

2

1

MX-M753N  MX-M623N/M623U/M753N/M753U  1 – 7

6)

While supplying developer to the developer supply port of the
developing unit, turn the MG gear clockwise with a plus screw-
driver to supply all developer to the developing unit.

NOTE: When supplying developer, do not touch the MG roller with

bare hands.

7)

Install the DV cover to the developing unit.

8)

Insert the developing unit to the main unit and fix it with the
blue screw.

9)

Close the process cover and fix it with the blue screw.

1)

Remove the toner cartridge from the box, and shake it several
times horizontally.

NOTE: Be sure to shake the toner cartridge horizontally.

NOTE: Be careful not rotate as shown in the figure below.

2)

Insert the toner cartridge into the main unit insertion port as
shown below. In this case, do not turn the cartridge.

3)

Insert the toner cartridge until it is locked.

Insert the power plug into the power outlet. With the front cabinet
open, turn on the power switch of the main unit.
1)

Enter the SIM 25-2 mode.

2)

Close the front cabinet.

3)

Press [EXECUTE] key to execute the simulation. Toner is
stirred for 3 minutes. The average level of the sensor detection
level is set (stored) as the reference toner density control
value.

1)

Pull out the tray 3 or the tray 4.

2)

Hold and slide the fixing knob (slide system) of the partition
plates A and B to fit with the size of paper to be supplied.

3)

Supply paper into the tray.

4)

Push the tray.

NOTE: Note that a certain special paper cannot be used for tray 4.

To use special paper, use tray 3.

To use tab paper, install the exclusive-use guide tray 3. 
Note that tray 4 cannot be used.
1)

Remove the exclusive-use guide from the storage position left
inside of the machine.