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MX-C301  MX-C301/C301W(MAIN UNIT)  2 – 3

1) Open the right door unit.. 

2) Turn the levers of the Fusing unit to add the pressure. 

* Only the levers can add or release the pressure. There is no
screw for adding or releasing the pressure. 

NOTE: When the machine is left for one month without using, the

Fusing heat roller could be deformed. If the machine is not
going to be used for an extended period, release the pres-
sure on the fusing rollers. 

1) Gently pull out the tray until it stops. If paper is in the tray,

remove it.

2) Adjust the guide plates A and B to the vertical size and the hori-

zontal size of paper. 

The guide plates A and B are movable. Hold the fixing knob to
slide the guide plates A and B to match the paper size.

3)

Insert the tray slowly.

4)

Touch the [Paper Select] key.   Then, select the tray that the
customer wants to use by touching the key of the desired tray.

1) Connect the telephone line to the modular jack indicated as

“LINE.”

It is necessary to prepare the line cable by yourself. The telephone
cable does not come with the machine. 

When connecting the line cable (to LINE or TEL), wind the line
cable two turns around the included ferrite core as shown in the fig-
ure, and connect to the modular jack which is marked with “LINE.”

(1)

(2)

(2)

(2)

0LATE

0LATE

!UTO

 X
0LAIN

 X

#OLOR -ODE

3PECIAL -ODES

3IDED #OPY

/UTPUT

&ILE

1UICK &ILE

#OPY

/RIGINAL

0APER 3ELECT

&ULL #OLOR

%XPOSURE

!UTO

0REVIEW

0LAIN
 X

 X

 X

MX-C301  MX-C301/C301W(MAIN UNIT)  2 – 4

Use SIM26 to set to the specifications according to the customer's
request.

To customize one of the following items after destination setting,
change the set value of the item.

Execute the checking items about the printing quality. Regarding
the specific procedures for the printing quality, refer to the Service
Manual [5] ADJUSTMENT.  

This adjustment performs the print engine image distortion adjust-
ment, the OPC drum phase adjustment, and the color registration
adjustment simultaneously.

1) Enter SIM50-22 mode and perform the auto registration adjust-

ment by pressing [EXECUTE] key.

2) When the adjustment is completed, [EXECUTE] key returns to

the normal display, and the value of the adjustment result is dis-
played.

The current skew level for each color is displayed on the SKEW
display section.

3)

Make test print in the simulation mode for checking whether
the void, off-center and printing quality are correct. 
If the test results are not correct, refer to [5] ADJUSTMENT
from the Service Manual and perform the adjustments.   
- Void ; SIM50-01/50-10
- Printing position ; SIM50-10
- Off-center, Registration ; SIM50-20
When the result of the void and the printing position are not
suitable, perform [ADJ4] by referring the [5] ADJUSTMENT of
the Service Manual. 
When the result of the off-center is not adequate, perform
[ADJ5] by referring the [5] ADJUSTMENT of the Service Man-
ual.
- Printing quality ; SIM64-5 
When the result of the print quality is not good, perform
[ADJ10] by referring the [5] ADJUSTMENT of the Service
Manual. 

26

6

Destination setting

26

18

Toner save mode enable/disable setting
*

For the other destinations, this setting is made by 
the user program.

53

Auto color calibration enable/disable setting

Error occurs

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Successfully Finished

MX-C301  MX-CS11 (500 SHEET PAPER FEED UNIT)  3 – 1

MX-C301

Service Manual

 

1)

Remove the 500 sheet paper feed unit from the polyethylene
bag, and remove the fixing tape and the protection material.

1) Turn off the power from display first before switch.

2) Disconnect the power plug from the power outlet.

NOTE: If the main unit is combined with the MX-CS11, it must 

be used as a desktop machine.

1) Put the main unit on the MX-CS11 so that they fit together.

NOTE: When holding the main unit, use two people.

NOTE: When lifting / holding the main engine, never lift / hold

the engine by the scanner unit. Lift the engine at the
right and left cover bottoms using the hand grab inden-
tions provided.

2) Pull out the trays of the main unit and MX-CS11. 

3)

Attach the main unit and MX-CS11 with the plates (Packed
item Plate A) and the screws (Packed items M4x10 P Tight
and M4x8 S Tight). 

1

Plate  A

1

2

Plate  B

1

3

Fixing screws (M4 x 10 P Tight)

1

4

Fixing screws (M4 x 8 S Tight)

3

x2

x2

x3

x1

XEBS740P10000

XHBS740P08000

1

2

3

4

MX-C301  MX-CS11 (500 SHEET Paper Feed Unit)  3 – 2

4)

Remove the Rear cover.

5) Attach the main unit and MX-CS11 with the plates (Packed item

Plate B) and the screws (Packed items M4x10 P Tight). 

1) Power to the main unit.
2) Turn ON the power switch.

NOTE: When moving the main unit combined with the MX-CS11, it

is recommended to hold the parts shown in the following
figure.

1) Enter the SIM50-10 mode.

2) Set A4 (11" x 8.5") paper in each paper feed tray.

3) Select an adjustment target item with scroll key on the touch

panel and press [EXECUTE] key.

The adjustment pattern is printed out. (Paper is fed from the
paper feed tray.)

Perform the procedures of 2) - 3) for the printed adjustment pat-
tern of each paper feed tray.

4) Press [OK] key. 

The adjustment result becomes valid.