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MX-7500N  MX-LC13 (LARGE CAPACITY TRAYS)  9 – 17

1) Connect the power plug of the machine to the power outlet,

and turn ON the main power switch and the operation panel
power switch.

1) Check to insure that the main body is standby state, and press

the [System setting] key on the operation panel.

2) Menu screen is displayed on the touch panel. Select the

[Paper Tray Settings].

3) Select the paper size of large capacity tray from contents of

[Paper Tray Settings].

CAUTION: If the off-center adjustment is not completely, there's a

possibility to have the following problem when large size
paper (example: 13 * 19 inch size) was fed from LCT.
A: Registration Shift
B: Mechanical Vignetting

If the center is shifted greatly, “Color Shift” or Mechanical Vignett-
ing” may occur as the figure above.
In this case, it is necessary to do the following mechanical adjust-
ment.
Normally, Off-center adjustment is done by image processing using
CIS function. To check the mechanical off-center position, CIS
function needs to be turned off. 
1) Run Sim50-10 using the keypad on the main unit.
2) Select SW1 and change the value “1” to “0”.
3) Press [EXECUTE] key to print out for each paper feed tray.

4)

Check the void area of the adjustment pattern and check the
“Off-center” shift amount (A-B).
“A-B” is over 3mm: Move to Mechanical Adjustment 1
“A-B” is less than +/-3mm: Move to Mechanical Adjustment 2
“A-B” is less than +/-2mm: SW1 “0” to “1” for auto adjustment.

When shifted over +/-3mm.
1)

If the image shifts to the front side, lift up the front side adjuster
in order to correct the paper transport position as a figure
below.

2)

If the image shifts to the rear side, lift up the rear side adjuster
in order to correct the paper transport position as a figure
below.

A: Registration Shift

B: Mechanical Vignetting

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MX-7500N  MX-LC13 (LARGE CAPACITY TRAYS)  9 – 18

When shifted over +/-2mm less than +/-3mm.
1) Pull out the cassette.

Press the lock button on the front cabinet and lower the paper
feed base tray to the paper supply position. Pull out the tray.
* In case the machine is turned off, If it is necessary to release
the lock manually, push the shaft at the bottom of the front cab-
inet and lower the paper feed base tray to the paper supply
position and pull out the tray. 

When shifting the line of printing from the center of the paper in
the direction A of arrow as shown below:

2) Loosen the blue screws of the rear regulation plate, and move

the plate with referring the carved marks by the dimension
shifted in the direction A (R side), and tighten the blue screws.

3) Set a sheet of paper on the paper feed base tray and loosen

the blue screws of the front regulation plate.
Move the front regulation plate to the direction A (R side)?with
pushing paper to the front regulation plate.

4)

Set the front regulation plate to make gap between the rear
regulation plate and paperand tighten the blue screws of the
fron regulation plate.

NOTE: Avoid bending paper with too much closing the regulation

plates.

NOTE: When shifting the line of printing from the center of the

paper to rear side, move the front regulation plate to adjust
it.

1)

Pull out the cassette.
Press the lock button on the front cabinet and lower the paper
feed base tray to the paper supply position. Pull out the tray.
* In case the machine is turned off, If it is necessary to release
the lock manually, push the shaft at the bottom of the front cab-
inet and lower the paper feed base tray to the paper supply
position and pull out the tray. 

2)

Adjust the diagonal feed.

3)

Set a sheet of paper on the paper feed base tray and adjust
the width of the regulation plate.
In the case of diagonal feed 1
Loosen the 2 blue screw (1) on the front regulation plate.
Referring to the degree of diagonal feed, move the regulation
plate in the clockwize direction and fix the blue screw.

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Diagonal feed 2

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: ‘14/Jan

MX-7500N  MX-LC13 (LARGE CAPACITY TRAYS)  9 – 19

Loosen the 2 blue screws (2) on the rear regulation plate.
To make parallel with the front regulation plate, move the rear
regulation plate in the clockwize direction and fix the screws.

In the case of diagonal feed 2
Loosen the 2 blue screws (1) on the front regulation plate.
Referring to the degree of diagonal feed, move the regulation
plate in the counterclockwize direction and fix the blue screw.

Loosen the 2 blue screws (2) on the rear regulation plate.
To make parallel with the front regulation plate, move the rear
regulation plate in the counterclockwize direction and fix the
screws.

NOTE: When fixing the rear regulation plate, not to fix it more

closely against the paper.
(The target of the gap between the edge of paper and the
rear regulation plate is about 1.0mm)

NOTE: After completion of the adjustment, check that the front reg-

ulation plate and the rear regulation plate are in parallel to
each other.

Though the off-center adjustment has been made by CIS function,
if the fine adjustment is necessary, perform the following adjust-
ment.
1) Run Sim50-10 using the keypad on the main unit.
2) This screen allows you to configure the print off-center adjust-

ment value for each paper feed tray.

3) On the touch panel, press [DOWN] Key to select "H: 50:

MAINLCT1."

4)

Enter the desired adjustment value through the numeric key-
pad. (This value, which defaults to 50, can be adjusted within
the range of 1 to 99)

-    Reducing the adjustment value by 1 causes the main scan/

print position to shift by 0.1mm toward the rear.

-    Increasing the adjustment value by 1 causes the main scan/

print position to shift by 0.1mm toward the front.

5)

After entering the adjustment value, press the [EXECUTE] key
on the touch panel to start printing and save the setting.

6)

Check that the adjustment pattern image is printed in the cor-
rect position.
Measure the dimensions of the void areas on the front and rear
frame sides of the adjustment pattern image, and make sure
that the following conditions are met:

No adjustment is needed if A-B=+/-2.0 mm.
If the above condition is not met, do the following:

7)

Change the adjustment value. (Enter the adjustment value and
press the [OK] key.)
Changing the adjustment value by 1 shifts the position by
approximately 0.1 mm. 
Repeat steps 4) to 6) until the condition shown in step 6) is sat-
isfied. 

8)

After you have completed the adjustment, exit from Simulation
mode by pressing the [CA] key.
MEMO：For details of the adjustment and checking proce-
dures, refer to the "[5] ADJUSTMENTS AND SETTINGS" on
the Service Manual.

NOTE: When installing this machine in a place of low atmospheric

pressure, check and conform to the adjustment contents in
the MX-LC13 Service Manual.

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MX-7500N  MX-LC13 (LARGE CAPACITY TRAYS)  9 – 20

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) Draw out the second tray from the unit.

Push the button of the bottom side of the unit to unlock the
tray, and then slowly pull out the tray until it stops.

2) Remove 3 screws from the tray.

NOTE: Don’t forget to remove those screws, it may break the

trays.

3) For 19 inch size paper, remove the step screw.

4) Slowly insert the tray to the original position.

1)

Attach the LCT connecting plate (Packed items No.1/2) to the
large capacity trays with the screws (Packed items No.4 S-
tight, M4 x 8).
MEMO: The reference label is attached to the plate. Attach it
so that the label can be seen from the outside.

2)

Fix the upper mounting plates (Packed items No.6) to the
machine with 4 screws (Packed items No. 11 S-tight, M4 x 18).

3)

Insert the installation plate of the LCT to the mounting plate of
the paper pass unit.