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MX-FNX5  SERVICE TABLES  4 – 1

MX-FNX5

Service Manual

 

* If there is virtually no shift, this adjustment is not required. (Basi-

cally this adjustment is not performed in the market.)

When executing the horizontal resist adjustment, remove and shift
the screw which fixes the horizontal resist reference bracket and
turn the reference bracket 90 degrees. Then the whole connection
bracket can be slid horizontally.

* There is a marking of 2mm pitch in the fixing section on the left

upper side of the connection bracket. The bracket can be shifted
by max. 

±5mm.

a. When paper is on the front side:
Slide the connection bracket to the front side, and shift the center
binding unit to the front side.
b. When paper is on the back side:
Slide the connection bracket to the back side, and shift the center
binding unit to the back side.

(Usage)
• Applicable to non-staple mode only. (It does not affect the maxi-

mum load of staple mode.)

• Applicable to A4, B5 and 8.5 x 11 sizes only. (Applicable only to

the 3,000-sheet capable sizes)

• If the paper on the tray has a large amount of curl, the paper may

drop off the tray or a delivery jam may occur. To prevent drop of
paper and delivery jam, it is possible to  alter the tray output to
half the maximum specification (About 1,500 to 1,800 sheets).

1)

Take off the rear cover.

2)

Confirm that the power of the connected machine is turned off,
and set the DIP SW101 of the finisher control PWB as below.

(Usage)
• Enable only in the staple mode (The loading capacity in the non-

staple mode is not affected.)

• For A4, A4R, B5, B5R, 8.5" x 11",  and 8.5" x 11"R sizes, enable

only when the number of binding sheets is 2 - 15. (This setting is
disabled when the number of binding sheets is 16 - 100.)

• By enabling the setting, about 3,000 sheets can be loaded.

(By the default setting, full stop at the intermediate position
(about 1,200 - 1,800 sheets)).

1)

Take off the rear cover.

2)

Confirm that the power of the connected machine is turned off,
and set the DIP SW101 of the finisher control PWB as below.

* To enable both of the above settings A and B (loading setting),

set the DIP SW101 as shown below.

Main unit side

Integrated-type connection bracket

Slide

Normal position of the
horizontal resist reference bracket

Loosen the screw and shift

Rotate the bracket
90 degrees.

Default state

SW101

(Note) Make sure to set as below.

SW101

When limiting the maximum load.

ON

1

2

3

4

ON

1

2

3

4

Default state

SW101

(Note) Make sure to set as below.

SW101

When limiting the maximum load.

ON

1

2

3

4

ON

1

2

3

4

SW101

ON

1

2

3

4

(Note) Do not set to other than

the above.

MX-FNX5  SERVICE TABLES  4 – 2

(Note)
After installation of the MX-FNX5, be sure to check the off-center
and skew.
If there is any problem in the off-center and skew, a paper jam or
misalignment of the finisher may be produced.
Off-center and skew
The paper feed path is extremely long when all the post-processing
feed options are installed. In such a long path, the cumulative effect
of paper skew and deviation in side-to-side registration may require
adjustment.
Skew appears when the paper rotates away from the direction of
paper feed. If side-to-side registration shifts, the sheet remains
straight but shifts left or right.

1)

Select a punch mode (3-hole or 4-hole) on the operation panel,
and make a copy.
(Setting conditions)

* When, however, the MX-MFX1 (manual paper feed unit) is

installed, paper is fed from the MX-MFX1.

2)

Measure and check the punch hole positions on the paper.

3)

Check to confirm that the difference between dimension A and
dimension B is within 

±2mm.

4)

If the difference between dimension A and dimension B is
greater than 

±2mm, an adjustment for skew is required.

1)

Remove the spacer which is fixed to the MX-FNX5 with two
screws.

2)

Insert the spacer into the connection bracket of the MX-FNX5
and adjust.

3)

When dimension A is smaller than dimension B, insert the
spacer in the front side (F) of the connection bracket.

4)

When dimension A is greater than dimension B, insert the
spacer in the rear side (E) of the connection bracket.

Paper

: Use 11 x 17 or A3 paper

Paper feed tray

: Paper is fed from the main unit No. 3 tray

Skew

Side-to-Side Registration Shift

Feed
Direction

Paper exit direction

Holes

A

B

C

D

Spacer

1pc: 2mm

[E]

[C]

[D]

[F]

Paper exit

direction

A

B

[E]

[C]

[D]

[F]

Paper exit

direction

A

B

MX-FNX5  SERVICE TABLES  4 – 3

5)

Loosen screws (x2) [C] or [D] where the adjustment is required
so the spacer can be inserted.

6)

Insert one spacer [E] or [F].

7)

Do some more test prints to check the adjustment.
If skew is still present, insert another spacer at the same loca-
tion.

1)

Select a punch mode (3-hole or 4-hole) on the operation panel,
and make a copy.
(Setting conditions)

* When, however, the MX-MFX1 (manual paper feed unit) is

installed, paper is fed from the MX-MFX1.

2)

Measure and check the punch hole positions on the paper.

3)

Check to confirm that the difference between dimension C and
dimension D is within 

±2mm.

4)

If the difference between dimension C and dimension D is
greater than 

±2mm, the off-center adjustment is required.

Important
This adjustment can be done on the left side of the copier, at the
MX-FDX1, at the MX-CFX2 at the MX-FNX8.
1)

Slide the connection bracket of the FNX5 and adjust.

2)

Loosen screws. (1. 2 .3 .4)

3)

Remove the bracket [A] (-x1), rotate it 90 degrees, then refas-
ten it.
NOTE: 
Re-positioning the bracket aligns the oval cut-out horizontally
so that you can slide the joint bracket to slide from side-to-side.

4)

Use the scale [B] at the top of the rear end of the bracket.

5)

When dimension C is smaller than dimension D, slide the con-
nection bracket to the front side (C) and tighten the screw.

6)

When dimension C is greater than dimension D, slide the con-
nection bracket to the rear side (D) and tighten the screw.

1)

Setting conditions

* When, however, the MX-MFX1 (manual paper feed unit) is

installed, paper is fed from the MX-MFX1.

2)

You can measure the skew and registration at two locations.

3)

At the output slot of the 3000-sheet finisher MX-FNX5 [A]

4)

At both locations, two scales are provided so that you can visu-
ally measure the amount of skew or deviation in side-to-side
registration.
Important! 
Only one scale is read, depending on the type of paper.
Be sure to read the correct scale for the paper size.

Paper

: Use 11 x 17 or A3 paper

Paper feed tray

: Paper is fed from the main unit No. 3 tray.

[E]

[C]

[D]

[F]

Paper exit direction

Holes

A

B

C

D

Paper

: Use 11 x 17 or A3 paper

Paper feed tray

: Paper is fed from the main unit No. 3 tray.

Rear

11” x 17”  size paper only

Front

A3 size paper only

[A]

[B]

[D]

[C]

Scale: 2 mm

2

4

3

1

Front

[A]

Rear

MX-FNX5  SERVICE TABLES  4 – 4

5)

Check or adjust 11" x 17" skew.
If the shift between the lead edge and the rear edge is greater than 

±2mm, the adjustment is required.

6)

Insert the spacer into the connection bracket of the FNX5.

There is some deviation but no adjustment is 
necessary.

Deviation is more than 2 mm.
Adjustment is necessary.
Insert the spacer into the rear side [F] of the 
connection bracket.

Deviation is more than 2 mm.
Adjustment is necessary.
Insert the spacer into the rear side [E] of the 
connection bracket.

TE

LE

Paper exit

direction

LE

TE

LE : Leading edge
TE : Trailing Edge
Scale : 2 mm

TE

LE

Paper exit

direction

LE

TE

LE : Leading edge
TE : Trailing Edge
Scale : 2 mm

TE

LE

Paper exit

direction

LE

TE

LE : Leading edge
TE : Trailing Edge
Scale : 2 mm

[E]

[C]

[D]

[F]