MX-2630. Install Manual - Sharp Copying Equipment Service Manual (repair manual). Page 20

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MX-2630N  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.
The printer color balance adjustment (step 1) is automatically per-
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.
8)
The initial setting menu of the half-tone image correction is dis-
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.
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.
For example, if the copy color balance adjustment (automatic
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.
Troubleshoot the cause, repair or perform necessary works, and
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.
(5)
Print/scan image off-center, lead edge position 
adjustment
Before executing this adjustment, be sure to check the following
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
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).
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.
* For the F side void amount, the target is 2mm.
[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.
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.)
7)
After entering the adjustment values, print again and check to
confirm that the avoid amounts are adjusted to the target range.
PRINTER CALIBRATION
3
1 2
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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.
High density
Low density
• Lead edge void amount 
   (4.0mm terget)
Measure at the center of 
paper. 
Adjustment value
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
• F side void amount (2.0mm terget)
  Measure at a position near the 
paper lead edge. 
      Adjustment value 
      C : MAIN-CS1
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