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 – 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.

MX-M503N  MX-M283N/M363N/M363U/M453N/M453U/M503N/M503U/M282N/M362N/M452N/M502N  1 – 9

Check that the following operations are normal.

Print the various setup data and the adjustment data (list) with
SIM22-6 and keep the data.
• In case of a memory trouble, if the data are not kept, all the

adjustments must be made again.

• If the data are kept, the setup values and the adjustment values

can be entered without adjustments, shortening the servicing
time.

1)

If the following options are installed, remove all of them from
the machine.
• Finisher
• Large capacity tray

2)

Remove the following consumable parts from the machine.
• Paper
• Toner cartridges
• Development cartridge

3)

Lock the following sections.
• Scanner (Optical section)
• Paper cassette lift plate

NOTE: Since the hard disk drive is built in the machine, use care

not to exert vibrations or shocks to the machine when in
transit.

To use the remote operation panel function, the password for the
remote operation panel function must be entered on the password
input menu displayed on the VNC boot screen. Note that, therefore,
the password must be set in advance to use the remote operation
panel function.
Let the user make the password, and use SIM26-78 to set it.

1)

Enter the SIM26-78 mode.

2)

Enter the password with 10-key. (Within 5 - 8 digits)
The entered password is displayed on the column of "NEW."
To modify the entered password, use clear key to delete the
password digit by digit.

3)

Press [SET] key, and the password is set.

There are two USB ports; one on the front frame side and the other
on the rear frame side. Only one of them can be used at a time. Do
not connect the two USB ports simultaneously.
When shipping, the port on the front frame side is valid and the port
on the rear frame side is invalid. When using the USB port, be care-
ful of the total current consumption not to exceed 500mA.
The valid port can be switched by changing the setting of the MFP
PWB DIP SW.
Select the valid USB port according to the user’s request.
* The default setting for SW1/SW2 is OFF.

NOTE: For the machine which is provided with a keyboard, either

one of two USB ports can be used at a time. However, both
DIP SW1’s must be set to OFF.
Note that, if DIP SW1 is set to ON, the machine is set to the
CN update mode.

NOTE: After completion of option installation, revise all the firm-

ware to the latest version.

Key-in (operation panel)
Display (operation panel)
Paper feed 
operation

Hand feed
Main unit paper 
tray
Desk unit paper 
feed tray

With the desk unit installed

Paper size detection
Originals size 
detection

Original table 
mode
DSPF mode
RSPF mode

DSPF/RSPF 
operation / two 
sided copy

S-S mode
D-S mode
S-D mode
D-D mode

Bookbinding operation

When the finisher is installed

Stapling operation

When the finisher is installed

Grouping operation

When the finisher is installed

Sorting operation

When the finisher is installed

Paper exit operation

When the exit tray unit (MX-TRX2) 
is installed

OFF

OFF

Valid

Invalid

OFF

ON

Invalid

Valid

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Upper side: DIP-SW1
Lower side: DIP-SW2
When tilted toward you: OFF
When tilted to the PWB side: ON

MX-M503N  MX-DEX8/DEX9  2 – 1

MX-M503N

Service Manual

 

* If the connector is removed first, it may be pinched in the install-

ing procedures. Therefore, keep it packed when unpacking the
package, and unpack it when connecting the connector to the
machine.

1)

Remove the fixing material and packing parts.

1)

Check that all the items are included in the package.

<Note before installation>
* Before starting installation, check to insure that the data lamp on

the operation panel does not light up or blink.

1)

Turn OFF the power switch on the operation panel.

2)

Open the front cabinet. 
Turn OFF the power switch in the front cabinet of the main unit.

3)

Disconnect the power plug of the main unit from the power out-
let.

1

Right adjuster

1

2

Fixing screws (M4 x 8)

4

1

2

MX-M503N  MX-DEX8/DEX9  2 – 2

1)

Install the right adjuster (package part No. 1) to the desk unit.

2)

Turn each adjuster to fix the desk unit.

1)

Remove the connection plate covers of the both sides of the
main unit.

2)

Put the main unit on the desk unit.
* Use man power of four persons or more to lift the main unit.

* Place the main unit on the desk unit slowly by fitting the

external lines. Check to insure that the positioning pin on the
top of the desk unit is securely engaged in the positioning
groove of the main unit.

3)

Remove the No. 2 paper feed tray.

4)

Pull out the No. 3 paper feed tray until it stops.