Sharp Mx 2310u Owners Manual

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 25
 
ADJ 8Scan image focus adjustment
This adjustment must be performed in the following cases:
* The CCD unit has been removed from the machine.
* The CCD unit has been replaced.
* When the copy image focus is not properly adjusted.
* When the copy magnification ratio in the copy image main scan-
ning direction is not properly adjusted.
* U2 trouble has occurred.
1) Enter the SIM 48-1 mode.
2) Set the adjustment item CCD (MAIN) to 50 (default value). Select the...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 26
10) Loosen the CCD unit fixing screws.
Never loosen the screws marked with X.
If any one of these screws is loosened, the position and the
angle of the CCD unit base may be changed to cause a prob-
lem, which cannot be adjusted in the market. In that case, the
whole scanner unit must be replaced.
11) Slide the CCD unit in the ar row direction (CCD sub scanning
direction) to change the installing position.
When the copy image is longer than  the original scale,...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 27
2) Select the set item L with the scroll key, and enter the value
corresponding to the paper feed tray with A4 (11 x 8.5) paper
in it.
3) Press [EXECUTE] key. The adjustment pattern is printed.
4) Measure the distance from the paper lead edge the adjustment pattern to the image lead edge, and check to confirm that it is
in the standard adjustment value range.
Standard adjustment value: 4.0   1.0mm
If the above requirement is not met, do the following steps. 5)...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 28
Note for the color balance/density check and adjustments
• For the color balance adjustments, be sure to use the paper
specified for color (recommended paper).
Note that, if another kind of paper is used for the color balance
adjustment, proper image qualities (color balance, density) may
not be obtained.
• When setting the adjustment pattern on the document table in the automatic color balance adj ustment procedures, place 5
sheets of white paper on the...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 29
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.
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.
5) There are no white and black streaks.
6) Color texts are clearly reproduced.
7) The background density is not so light.
Color...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 30
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. 4) There are no white and black streaks.
5) The background density is not so light.
6) The black low-density gradation is copied slightly.
Void
Resolution
Void
Low-density gradation
Resolution
Density difference between the F and the R sides.No white...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 31
(Method 2)
Use SIM46-21 to print the color balance adjustment sheet, and
check each process (CMY) black pa
tch color balance and the black
patch in order to confirm that the color balance adjustment is
proper or not more precisely.
If the color balance of each patch of the process black (CMY mixed
color) is slightly shifted to Magenta, it means that the adjustment is
proper. If the color balance of the adjustment pattern printed in this
mode is slightly shifted...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 32
(2) Adjustment procedures
1) Set the SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1) to
the reference position on the left rear frame side of the docu-
ment table.
Set the chart so that the lighter density side of the patch is on
the left side.
If the SIT chart is not available, execute SIM 63-5 to set the
CCD gamma to the default. In this case, however, the adjust-
ment accuracy is lower when compared with the adjustment
method using the SIT chart.
Check to insure...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 33
• Relationship between the factory target and the service target
 and the color balance target for the user color balance adjustment in the copy
color balance adjustment (Automatic adjustment) (SIM 46-74/46-24)
• Factory target in the copy color balance adjustment (SIM 46-74/46-24) By use of SIM 63-11, one of the following color balances can be set as the factory color balance target.
Each of the three color balances cannot be changed. (Fixed)
• Service color...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 34
It is recommended to keep the printed adjustment pattern created
with SIM 46-21. This adjustment pattern can be used to register the
same color balance target to another machine.
It is also useful to register th
e service color balance target data. 
Do not fold it and keep it under the circumstances which protect it
from discoloration and dirt.
The service color balance target  data is registered immediately
after the color balance adjustment (Manual) with SIM...