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MX-7500N  MX-LT10 (LONG PAPER FEEDING TRAY)  7 – 1

MX-7500N

Service Manual

 

Note: Do not insert the finger in the hook part of the tray.  

1) Open the long paper feeding tray guide and hook it to the lock

of the long paper feeding tray.

2) Pull out the guide of the machine. 

Note: Do not pull out the MF tray unit with the guide. 

3) Hook the Long paper feeding tray to the guide of the machine.  

4) Insert the guide of the machine. 

Note: This tray can only be used for long paper feeding.  

Do not leave long paper for an extended period of time. 

You can use long paper with this tray.  

1

Long paper feeding tray

1

MX-7500N  MX-RB14 (PAPER PASS UNIT)  8 – 1

MX-7500N

Service Manual

 

*1: Not packed after August / 2013 production

Check the label on the carton box as the figure below.

Prepare the following replacement service parts.

New Roller : It has a step whose diameter is changed 8 to 6mm.
Old Roller : It has 2 holes.

1)

Remove 3 screws and unhook the inside hooks. And remove
the front cover.
Remove the screw, earth plate, the E7-ring and the ball bear-
ing. 

2)

Remove the belt and bring Transport Roller toward the front.

1

Dummy unit

1

2

Upper door

1

3

Front door

1

4

Upper door stopper L

1

5

Upper door stopper R

1

6

ADU cabinet F lower

1

7

ADU cabinet R lower

1

8

Connecting plate lower F

1

9

Connecting plate lower R

1

10

Height adjustment plate

*1

2

11

Step screw

2

12

Screw (P-tight, M4 x 10)

11

13

Screw (S-tight, M4 x 8)

10

14

Step screw

2

15

Washer large

2

16

Washer small

2

17

Spring

1

A00

Before March 2013 
production

Go to [3. Roller replacement] 
and then [4. Installation 1]

A10

From April to June 2013 
production

Go to [4. Installation 1]

More than A20

After Augst 2013 pro-
duction

Go to [5. Installatio2]

4

5

6

7

8

9

10

11

13

14

15

16

17

12

1

2

3

1

Relay Pull-Out Roller

NROLR1983FCZ1

2

One-Way Coupling

NCPL-0081FCZZ

3

E5

XRESP50-06000

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MX-7500N  MX-RB14 (PAPER PASS UNIT)  8 – 2

3) Remove E-ring, pulley, SP pin and then remove the roller.

1) Insert the New Roller to the hole of the frame from rear side.

2) Install the Ball Bearin and 2 E-Rings.

3) Insert the Pulley.

NOTE: Be carefull about the insertion direction of the Pulley.

4)

Insert the One-way Coupling and fix E5-Ring.
NOTE: Pay attention to the insertion direction of One-Way
Coupling. (so that the pawl of One-Way Coupling may be fitted
into the groove of the pulley.) 

5)

Attach the Belt.

6)

Attach Ball Bearing, E7-Ring and the Earth Plate and fix the
screw.

7)

Attach the front cover and fix the screw.

1)

When No.1 rollers are rotated toward the arrow direction, both
No.1 and 2 rollers are rotated.
When No.2 rollers are rotated toward the arrow direction, only
No.2 roller is rotated.

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MX-7500N  MX-RB14 (PAPER PASS UNIT)  8 – 3

NOTE: Before installation, be sure to turn both the operation and

main power switches off and disconnect the power plug
from the power outlet. Make double sure that the data lamp
on the operation panel does not light up or blink when per-
forming installation.

1) Open the right door of main unit.
2) Remove the screws and remove the ADU cabinet F lower.

3) Remove the screw and remove the ADU cabinet R lower.

4)

Install the dummy unit (Packed items No.1) and fix it with 4
screws (Packed items No.13).

5)

Fix the ADU cabinet R lower (Packed items No.7) with the
screw (Packed items No.12).

6)

Fix the ADU cabinet F lower (Packed items No.6) with 2
screws (Packed items No.12) and a screw (Packed items
No.13).