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MX-7580N  MX-MF11 (MULTI BYPASS TRAY)  8 – 3

4)

Fix the upper cabinet with the screws.

MEMO: After fixing the cabinet, shift the paper feed section to
the direction of the arrow.

5)

Open the front door of the LCT, and store the tab sheet
restraint plate to the place as shown in the figure below.

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.

The image lead edge position and the off-center adjustment value
of the desk unit have been set to the average value when shipping
from the factory. 
Therefore, this adjustment must be performed only when the judg-
ment is made to execute it through checking the print image.

* There must be a tray with A4 (LT) paper in it.

1)

Enter the Sim. 50-10 mode.

2)

Select a paper feed source "J"(MAIN-LCT-MFT).

3)

Set A4 (11 X 8.5) paper on the LCT manual paper feed tray.

4)

Check to confirm that the inside dimension of the printed half-
tone pattern is 240

0.5mm.

If the above condition is not satisfied, follow and repeat the
procedures of ADJ13-C (Service manual) until a satisfactory
result is obtained. 

5)

Measure the void area size of the adjustment pattern in the
front/rear frame direction (F side void amount) and that in the
transport direction (Lead edge void amount).

Check to confirm that all the following conditions are satisfied.

(Example) Lead edge void amount

(1) Measure by visual inspection.

Measurement result: 3.5mm

(2) Calculate the shift amount.

The target value is the specification value (center value) of
3mm.

* For the F side void amount, the target is 2mm.
[3 – 3.5 = -0.5 (mm)]

(3) Calculate the adjustment value.

Subtract 5 from the shift amount of -0.5mm.

* For the shift amount of 0.1mm, the adjustment value is

varied by 1.

When the current value is 50:

[50 – 5 = 45]

(4) Enter the adjustment value for SUB-LC.

Enter the [45].

6)

Enter MAIN-LCT-MFT (F side void) and SUB-LC (Lead edge
void), and press OK button.

Enter the calculated adjustment values for the shift amount to
MAIN-LCT-MFT/SUB-LC, and press OK button. (The cursor
can be used instead of the button.)

7)

After entering the adjustment values, print again and check to
confirm that the avoid amounts are adjusted to the target
range.

Perform procedures 4) to 7) for each paper feed tray.

 

• Lead edge void amount 
   (3.0mm terget)

Measure at the center of 

paper. 

Adjustment value
S : SUB-LC

Print

lead edge

Main scanning magnification ratio (240    0.5mm)
Measure the dimension near the inner frame line 
and the paper lead edge in parallel with the line. 
    Adjustment value   A : BK-MAG

• F side void amount (2.0mm terget)
  Measure at a position near the 

paper lead edge. 

      Adjustment value 
      I : MAIN-LCT-MFT

MX-7580N  MX-TR14 (EXIT TRAY UNIT)  9 – 1

MX-7580N

Service Manual

 

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)

Remove the screws (3 pcs.) and remove the front cabinet
upper of the right door.

2)

Remove the screws (2 pcs.) and remove the cabinet upper of
the right door.

3)

Remove the screw (1 pc.), and remove the inner cover of the
right door.

1

Right paper exit unit

1

2

ADU right upper cabinet R

1

3

ADU right upper cabinet F

1

MX-7580N  MX-TR14 (EXIT TRAY UNIT)  9 – 2

4)

Remove the screws (6 pcs.).
(1) Step screw, (2) P tight, (3) S tight

5)

Remove the right paper exit section.

1)

Remove the screws (4 pcs.), and remove the right paper exit
PG upper.

NOTE: When removing, be careful of the pawls.

2)

Remove the screws (7 pcs.) and remove the right paper exit
unit dummy.

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Pawls

MX-7580N  MX-TR14 (EXIT TRAY UNIT)  9 – 3

1)

Fix the right paper exit unit with the screws (3 pcs.), and
arrange the wires.

2)

Fix the ADU right upper cabinets F/R with the screws (each 2
pcs.).

1)

Attach the right paper exit PG upper to the original positions.

2)

Attach the right paper exit section to the original positions.
Connect the harness.

3)

Attach the inner cover of the right door, the cabinet upper of
the right door and the front cabinet upper of the right door to
the original positions.