DOWNLOAD Sharp MX-M363N / MX-M363U / MX-M503N / MX-M503U (serv.man18) Service Manual ↓ Size: 19.34 MB | Pages: 117 in PDF or view online for FREE

MX-M503N  MX-M283N/M363N/M363U/M453N/M453U/M503N/M503U/M282N/M362N/M452N/M502N  1 – 5

: '10/Jun/18

* Europe only. For except Europe, progress to the procedure of B.
* If the MX-FNX9 (Inner Finisher) or the MX-RBX3 (Interface Unit)

is installed when installing the main unit, do not install the paper
holding plate unit and the paper exit full detection actuator.

1)

Install the paper exit tray, and fix the screw.

2)

Install the paper exit tray cover.

3)

Remove the screw, and remove the inlet cover.

Be careful not to put fingerprints or oil dirt on the roller surface.
Do not hold the case adjacent to the DV roller strongly.
1)

Open the front cabinet, and remove the waste toner box.

2)

Remove the fixing screw of the developing unit, and pull out
the developing unit.

3)

Remove two screws. Remove the DV cover.

4)

While supplying developer from the developer supply port of
the developing unit, turn the MC gear counterclockwise by
using long-nose pliers to supply all developer to the developing
unit.
* Before opening the developer bag, shake the bag to mix

toner and developer in the bag, and then supply developer
to the developing unit.

5)

Attach the DV cover to the machine.
* Check to confirm that the pawl is securely engaged.

6)

Insert the developing unit into the machine, and fix it with the
blue screw.

7)

Install the waste toner box.

Inlet cover

MX-M503N  MX-M283N/M363N/M363U/M453N/M453U/M503N/M503U/M282N/M362N/M452N/M502N  1 – 6

: '10/Jun/18

1)

Insert the power plug into a power outlet. With the front cabinet
open, turn ON the power switch of the machine and the power
switch on the operation panel.

2)

With the front cabinet open, enter SIM 25-2.
WARNING: Do not install the toner cartridge before complet-
ing the Toner density reference control level setting (SIM 25-2).

3)

Close the front cabinet.

4)

After completion of the adjustment of the toner density control
reference value, insert the toner cartridge.

5)

When [EXECUTE] key is pressed, it is highlighted. The devel-
oping roller rotates, and the toner density sensor detects toner
density, and the output value is displayed.
The above operation is executed for 3 minutes, and the aver-
age value of the toner density sensor detection level is set
(saved) as the reference toner density control value.
When the reference toner density control adjustment operation
is completed, [EXECUTE] key returns to normal from highlight.
This makes known about whether the adjustment operation is
completed or not.

6)

Press the CA key to exit the simulation.
NOTE:
If the operation is interrupted within 3 minutes, the adjustment
result is not reflected.
When [EXECUTE] key is pressed during rotation, the opera-
tion is stopped and [EXECUTE] key returns to the normal dis-
play.
If [EE-EU] or [EE-EL] is displayed, setting of the reference
toner density control value is not completed normally.

NOTE: When not replacing the developer, do not execute SIM25-

2.
Only execute SIM 25-2 when replacing the Developer.
SIM 25-2 should only be run immediately after installing
new DV material.
Toner Concentration Reference Control Level Setting will
be incorrect if SIM 25-2 is performed at any other time.

1)

Shake the toner cartridge several times.

2)

Open the front cabinet, and insert the toner cartridge slowly.

* Do not forcibly insert the toner cartridge.

Keep holding the cartridge and completely insert it.

* When the machine is transported with the developing unit

removed, be sure to remove the toner cartridge. (If not, toner
may be clogged.)

3)

Insert the cartridge securely until it locks.

1)

Install the paper exit full detection actuator.

2)

Install the paper fixing sheet and paper fixture to the paper fix-
ture HCT.

EE-EL

EL abnormality

Sensor output level less than 67, or 
sensor control voltage level over 197

EE-EU

EU abnormality

Sensor output level over 154, or sensor 
control voltage level less than 49

EE-EC

EU abnormality

Sensor output level less than 95, or 
sensor control voltage level over 105

MX-M503N  MX-M283N/M363N/M363U/M453N/M453U/M503N/M503U/M282N/M362N/M452N/M502N  1 – 7

3)

Install the paper holding plate unit.
* If the MX-FNX9 (Inner Finisher) or the MX-RBX3 (Interface

Unit) is installed when installing the main unit, do not install
the paper holding plate unit and the paper exit full detection
actuator.

1)

Install the Operation Manual storage cover to the left side of
the machine.
a)

First, insert the pawl on the lower side of the Operation
Manual pocket.

b)

Then, lift the pawl on the upper side and insert it, and slide
down to install.

* If the finisher is installed together with installation of the

machine, the Operation Manual storage cover must be
installed to the finisher.

Change the tray setting in the "system setting" mode. If "Disabling
of Tray Settings" has been enabled in the system settings (adminis-
trator), the tray settings (except for the bypass tray) cannot be con-
figured.
1)

Press the [SYSTEM SETTINGS] key.

2)

Touch the [Paper Tray Settings] key.

3)

Touch the [Paper Tray Settings] key to configure the settings.
These settings specify the paper type, paper size, and func-
tions allowed for each paper tray. When the [Tray Settings] key
is touched, a list appears showing the trays and the current
settings.

4)

Touch the [Change] key in the above screen to change the set-
tings. The following settings can be configured.

1)

Pull out the paper tray.
Gently pull the tray out until it stops.
If paper remains in the tray, remove it.

1

1

2

Type

Select the type of paper that is loaded in the tray. The 
paper types that can be selected vary by paper tray.

Size

Select the paper size from the list. The paper sizes 
that can be selected vary by tray. The sizes that can 
be selected may also be restricted by the paper type 
selected above. 
If the desired size does not appear in the list, select 
[Custom Size] and directly enter the size (only for the 
bypass tray).

Feeding Approved 
Job

Select the modes that can be used. If there is a 
function that you do not wish to be used with the 
selected tray, disable the function. When the "Type" 
is other than plain paper, recycled paper, colored 
paper, or a user type, [Fax] and [Internet Fax] cannot 
be selected.

: '10/Jun/18

MX-M503N  MX-M283N/M363N/M363U/M453N/M453U/M503N/M503U/M282N/M362N/M452N/M502N  1 – 8

2)

Adjust the guide plates A and B by squeezing their lock levers
and sliding them to match the vertical and horizontal dimen-
sions of the paper to be loaded.
The guide plates A and B are slidable. Slide each guide plate
while squeezing its lock lever.

Used to set the specifications with SIM26 according to the cus-
tomer's request.

To customize the following items after completion of the destination
setup, change the set values.

(Note)
Before checking the copy density and gradation, be sure to execute
the following jobs.
* Execute the high density image correction (Process correction)

forcibly. (SIM 44-6)

* Execute the half-tone image correction forcibly. (SIM 44-26)
(Method)
Make a copy of the gray test chart (UKOG-0162FCZZ), and check
that it is proper.
Note for checking the copy mode density
To check the density, use the gray test chart (UKOG-0162FCZZ).
Set the copy density level to "Manual 3" in the Text/Printed Photo
mode (Manual).
In addition, all the picture quality adjustment settings in the user
adjustment mode must be set to the default (center).
[Check with the gray test chart (UKOG-0162FCZZ)]
In the copy density check with the gray test chart, check to insure
the following conditions.

[Check with the servicing color test chart (UKOG-0317FCZZ/
UKOG-0317FC11 or UKOG-0326FCZZ/UKOG-0326FC11)]
Check to confirm that it is in the conditions shown below.

If no printer option is installed to the U model, the following proce-
dures are not required. (SIM64-5 does not operate.)
(Note)
Before checking the printer density and gradation, be sure to exe-
cute the following jobs.
* Execute the high density image correction (Process correction)

forcibly. (SIM 44-6)

* Execute the half-tone image correction forcibly. (SIM 44-26)
(Method 1)
Execute SIM 64-5 to print the print test pattern.
Set each set value to the default and press [EXECUTE] key. The
print test pattern is printed.

The print density must be changed gradually from the lighter level
to the darker level. The density changing direction must not be
reversed.
(Method 2)
Execute SIM 67-25 to print the adjustment check pattern.

The print density must be changed gradually from the lighter level
to the darker level. The density changing direction must not be
reversed.
Patch A or B is slightly copied.

26

6

Used to set the destination.

26

2

LCC paper size setting

3

Used to set the auditor specification mode.

5

Used to set the count mode of the total counter and the 
maintenance counter.

18

Used to set YES/NO of the toner save mode 
(Only in UK and Japan versions)
* For other destination versions, this setup is made by 

the user program.

52

Used to set YES/NO of counting when non-print paper 
is passed through each counter.

53

Used to set YES/NO of user calibration permission.

65

Used to set the limit number of sheets for stapling.

B

A

1

2

3

4

5

6

7

8

9

10

W

SHARP GRAY CHART

SHARP gray chart

Patch 1 is not copied.

Patch 2 is
slightly copied.

Patch 3 is copied.

Serviceman chart (Color patch section)

Patch 7 is slightly
copied or not copied.

Q (Max)

A B C D E F G H I J K L M N O P

Patch A or B is slightly copied.

High density

Low density

The patch density is identical between patches or not reversed.
The patch density is changed gradually.