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MX-C401 MX-C310/MX-C311/MX-C312/MX-C380/MX-C381/MX-C400/MX-C401 (MAIN UNIT) 1 – 9
Rough adjustment pattern check:
Check the sub scan rough adjustment color image shift check
section on the R side and the F side of each color, use the
black scale of "0" as the center reference, and check the bal-
ance in shifts of the color image line positions in the positive
and the negative directions. The balance in the R side must be
the same as that in the F side.
section on the R side and the F side of each color, use the
black scale of "0" as the center reference, and check the bal-
ance in shifts of the color image line positions in the positive
and the negative directions. The balance in the R side must be
the same as that in the F side.
Fine adjustment pattern check:
Check the square frames on the R side and the F side of each
color. (Normally five sections of high density can be seen.)
Check the sub scanning direction position of the center area of
high density (one of the above five sections). These must be
on the same position on the R side and the F side.
color. (Normally five sections of high density can be seen.)
Check the sub scanning direction position of the center area of
high density (one of the above five sections). These must be
on the same position on the R side and the F side.
In this case, use the sub scan direction color image shift check
scale (fine adjustment) as the reference.
scale (fine adjustment) as the reference.
Visually check the color density and make the darkest section
as the center, and use it as the read value of the shift amount.
as the center, and use it as the read value of the shift amount.
Check that the difference in the center position of the dark den-
sity section is within
sity section is within
2 step.
The positional relations of the front and the rear frame of the
print color patterns of a same color are compared. There is no
need that all the colors are in the same state. Compare only
the positional relations of color patterns of a same color.
print color patterns of a same color are compared. There is no
need that all the colors are in the same state. Compare only
the positional relations of color patterns of a same color.
If the above condition is not met, do the following:
12) Turn the image skew adjustment screw of the target color to
adjust.
Relationship between the adjustment screw rotating angle and
the change in the adjustment image position:
the change in the adjustment image position:
Adjustment screw rotating angle (degree) = Image shift
amount (Adjustment scale) x 10
amount (Adjustment scale) x 10
Repeat procedures 11) - 12) until a satisfactory result is obtained.
(2)
Image registration adjustment
1)
Enter the SIM50-22 mode.
2)
Select ALL for the adjustment items.
ALL: Image registration (Main scanning direction, sub scan-
ning direction) / Automatic adjustment of the OPC drum phase
ning direction) / Automatic adjustment of the OPC drum phase
3)
Press [EXECUTE] key.
The adjustment is automatically performed and the adjustment
result data are displayed.
result data are displayed.
4)
Check the image registration.
NOTE: For details of the image registration check procedures,
refer to ADJ 7B and ADJ 7C.
(3)
Image loss, void area, image off-center adjustment
Make a copy in the document table mode and in the RSPF mode,
and check to confirm that the void area is within the specified range
shown below.
and check to confirm that the void area is within the specified range
shown below.
NOTE: For details of the image loss and image void check proce-
dures, refer to ADJ 11 and ADJ 12.
a. Image off-center automatic adjustment (Document table
mode)
1)
Enter the SIM50-28 mode.
(4.3 Inch LCD model)
(8.5/7.0 Inch LCD model)
2)
Select [SETUP/PRINT ADJ].
3)
Select [ALL].
(4.3 Inch LCD model)
Y
M
C
b
a
Content
Standard adjustment value
Lead edge void area
3.0
1.0mm
Rear edge void area
2.0 - 5.0mm
Front/Rear void area
3.0
2.0mm
Lead edge image loss adjustment
3.0
1.0mm
Side image loss adjustment
2.0
1.0mm
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