Sharp MX-3050N / MX-3060N / MX-3070N / MX-3550N / MX-3560N / MX-3570N / MX-4050N / MX-4060N / MX-4070N (serv.man7) Service Manual ▷ View online
MX-4070V 2 – 9
a. Color copy check items (Check to confirm the following:)
1)
There are 12 void areas.
2)
Registrations (one point for the main scanning, and one point for
the sub scanning) are not shifted.
the sub scanning) are not shifted.
3)
The resolution of 5.0 (5 points) can be seen.
4)
The color difference in gray balance between the F and the R
sides is not so great.
sides is not so great.
5)
There are no white and black streaks.
6)
Color texts are clearly reproduced.
7)
Solid density is not so light.
Solid density is not so light
IJ
MX-4070V 2 – 10
b. Monochrome copy check items (Check to confirm the following:)
1)
There are 12 void areas.
2)
The resolution of 4.0 (5 points) can be seen.
3)
The density difference between the F and the R sides is not so
great.
great.
4)
There are no white and black streaks.
5)
Solid density is not so light.
6)
The black low-density gradation is copied slightly.
Solid density is not so light
İ
MX-4070V 2 – 11
c. Printer color balance/density check
Method
Execute SIM 64-5 to print the print test pattern.
Set each set value to the default and press [EXECUTE] key. The print
test pattern is printed.
test pattern is printed.
The print density must be changed gradually from the lighter level to
the darker level. The density changing direction must not be reversed.
The density level of each color must be almost at the same level.
the darker level. The density changing direction must not be reversed.
The density level of each color must be almost at the same level.
d. Copy/Printer color balance and density adjustment (Automatic
adjustment)
When a printer option is installed, be sure to execute the above item.
1)
Enter the SIM46-74 mode.
2)
Press [EXECUTE] key.
The high density process control is performed, and the copy color
patch image (adjustment pattern) is printed out.
(A4/11" x 8.5" or A3/11" x 17" paper is automatically selected.)
patch image (adjustment pattern) is printed out.
(A4/11" x 8.5" or A3/11" x 17" paper is automatically selected.)
3)
Set the color patch image (adjustment pattern) paper printed in
procedure 2) on the document table.
procedure 2) on the document table.
Set the color patch image (adjustment pattern) printed in the pro-
cedure 2) on the document table. Place the color patch image so
that the fine lines are on the left side. At that time, place 5 sheets
of white paper on the printed color patch image (adjustment pat-
tern).
cedure 2) on the document table. Place the color patch image so
that the fine lines are on the left side. At that time, place 5 sheets
of white paper on the printed color patch image (adjustment pat-
tern).
4)
Select [FACTORY] target, and press [EXECUTE] key.
When the color balance is customized by the manual color bal-
ance adjustment (SIM 46-21) according to the user's request, and
the color balance is registered with SIM63-7 as the service target,
if the color balance is required to be adjusted, select the [SER-
VICE] target.
ance adjustment (SIM 46-21) according to the user's request, and
the color balance is registered with SIM63-7 as the service target,
if the color balance is required to be adjusted, select the [SER-
VICE] target.
The copy color balance adjustment is automatically executed and
prints the color balance check patch image.
prints the color balance check patch image.
If there is any streak or unclear print on the printed check pattern,
check the print engine for any problems.
check the print engine for any problems.
5)
Press [EXECUTE] key.
The printer color patch image (adjustment pattern) is printed out.
(A4/11" x 8.5" or A3/11" x 17" paper is automatically selected.)
(A4/11" x 8.5" or A3/11" x 17" paper is automatically selected.)
6)
Set the color patch image (adjustment pattern) printed in the pro-
cedure 5) on the document table.
cedure 5) on the document table.
Set the color patch image (adjustment pattern) printed in the pro-
cedure 2) on the document table. Place the color patch image so
that the fine lines are on the left side. At that time, place 5 sheets
of white paper on the printed color patch image (adjustment pat-
tern).
cedure 2) on the document table. Place the color patch image so
that the fine lines are on the left side. At that time, place 5 sheets
of white paper on the printed color patch image (adjustment pat-
tern).
Q
O P
N
M
L
K
J
I
H
G
F
E
D
C
B
A
Y
M
C
Bk
High
density
density
Low
density
density
1) The max. density section is not blurred.
2) Patch C or D of each of Y, M, C, and BK is very slightly copied.
3) Patch for each of Y, M, C, BK
The patch density is identical between patches or not reversed.
The patch density is changed gradually.
The patch density is changed gradually.
PRINTER CALIBRATION
MX-4070V 2 – 12
7)
Select [FACTORY] target, and press [EXECUTE] key.
When the color balance is customized with the manual color bal-
ance adjustment (SIM 67-25) according to the user's request and
the color balance is registered as the service target with SIM 67-
27, if the color balance is adjusted to that color balance, select the
[SERVICE] target.
ance adjustment (SIM 67-25) according to the user's request and
the color balance is registered as the service target with SIM 67-
27, if the color balance is adjusted to that color balance, select the
[SERVICE] target.
The printer color balance adjustment (step 1) is automatically per-
formed and the color balance check patch image is printed out.
formed and the color balance check patch image is printed out.
If there is any streak or unclear print on the printed check pattern,
check the print engine for any problems.
check the print engine for any problems.
8)
The initial setting menu of the half-tone image correction is dis-
played. Press [OK] key.
played. Press [OK] key.
The initial setting of the half-tone image correction is performed.
9)
Wait until [EXECUTE] key is displayed. When it is displayed,
press it.
press it.
The half-tone image correction is performed.
10) When "COMPLETED THIS PROCEDURE" is displayed, the
adjustment operation is completed.
Cancel SIM46-74.
The adjustment result becomes valid only when the both adjust-
ments in the copy mode and in the printer mode are completed.
ments in the copy mode and in the printer mode are completed.
For example, if the copy color balance adjustment (automatic
adjustment) is performed and the simulation is canceled, the
adjustment result is invalid.
adjustment) is performed and the simulation is canceled, the
adjustment result is invalid.
11) Check the copy color balance and density.
(Refer to the item of the copy color balance and density check.)
12) Check the printer color balance and density.
(Refer to the item of the printer color balance and density check.)
If the color balance or density is not in the satisfactory level even after
execution of the automatic and manual adjustments, there may be
another cause.
execution of the automatic and manual adjustments, there may be
another cause.
Troubleshoot the cause, repair or perform necessary works, and
repeat the adjustment from the beginning.
repeat the adjustment from the beginning.
If color balance or density is not satisfied, adjust the copy and printer
color balance by SIM 46-74.
color balance by SIM 46-74.
e. Print/scan image off-center, lead edge position adjustment
Before executing this adjustment, be sure to check the following
items.
items.
* There must be a tray with A4 (LT) paper in it.
1)
Enter the Sim. 50-10 mode.
2)
Select a paper feed tray 1.
3)
Set A4 (11 X 8.5) paper on the paper feed tray 1.
4)
Check to confirm that the inside dimension of the printed half-tone
pattern is 240
pattern is 240
0.5mm.
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).
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.
Calculation and input procedures of adjustment values
(Example) Lead edge void amount
(1) Measure by visual inspection.
Measurement result: 4.5mm
(2) Calculate the shift amount.
The target value is the specification value (center value) of
3mm.
3mm.
* For the F side void amount, the target is 2mm.
[4 – 4.5 = -0.5 (mm)]
[4 – 4.5 = -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-CS.
Enter the [45].
6)
Enter MAIN-CS1 (F side void) and SUB-CS (Lead edge void), and
press OK button.
press OK button.
Enter the calculated adjustment values for the shift amount to
MAIN-CS1/SUB-CS, and press OK button. (The cursor can be
used instead of the button.)
MAIN-CS1/SUB-CS, 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.
confirm that the avoid amounts are adjusted to the target range.
PRINTER CALIBRATION
3
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1) The max. density section is not blurred.
2) Patch C or D of each of Y, M, C, and BK is copied.
3) Patch for each of Y, M, C, BK
The patch density is identical between patches or not reversed.
The patch density is changed gradually.
The patch density is changed gradually.
High density
Low density
• Lead edge void amount
(4.0mm terget)
(4.0mm terget)
Measure at the center of
paper.
Adjustment value
J : SUB-CS
J : SUB-CS
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
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
Measure at a position near the
paper lead edge.
Adjustment value
C : MAIN-CS1
C : MAIN-CS1
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