Read Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man38) Service Manual online
MX-4100N MX-4100N/4101N/5000N/5001N 1 – 12
11) Turn the image skew adjustment screw of the target color to
adjust.
When each adjustment screw is turned, it clicks. Turn it by
5 - 6 clicks and the check pattern is changed by 1 step (1
dot size).
When the image skew pattern on the front frame side is
skewed in the arrow direction of A (to the smaller number) from
the rear frame side, turn the adjustment screw counterclock-
wise. When the image is skewed in the arrow direction of B (to
the larger number), turn the adjustment screw clockwise.
5 - 6 clicks and the check pattern is changed by 1 step (1
dot size).
When the image skew pattern on the front frame side is
skewed in the arrow direction of A (to the smaller number) from
the rear frame side, turn the adjustment screw counterclock-
wise. When the image is skewed in the arrow direction of B (to
the larger number), turn the adjustment screw clockwise.
12) Print the check pattern.
13) Check the color image skew pattern.
13) Check the color image skew pattern.
Repeat procedures 11) - 13) until a satisfactory result is obtained.
The image skew adjustment (LSU unit) is executed by changing
the parallelism of the LSU unit scan laser beam for the OPC drum.
The image skew adjustment (LSU unit) is executed by changing
the parallelism of the LSU unit scan laser beam for the OPC drum.
(2) Image registration adjustment
1)
Enter SIM50-22 mode.
2)
Select the adjustment target item "ALL".
ALL:
Image registration (Auto adjustment of the main scanning
direction, the sub scanning direction and the OPC drum
phase)
ALL:
Image registration (Auto adjustment of the main scanning
direction, the sub scanning direction and the OPC drum
phase)
3)
Press [EXECUTE] key.
The adjustment are executed automatically and adjustment
result data is displayed.
The adjustment are executed automatically and adjustment
result data is displayed.
4)
Check the image registration.
NOTE: For details of the checking procedures of the image regis-
tration, refer to the ADJ10B and the ADJ10C.
tration, refer to the ADJ10B and the ADJ10C.
(3) Image loss, void area, image off-center adjustment
Make a copy in the original table mode and in the RSPF/DSPF
mode. Check to confirm that the image loss and the void area are
in the range shown below.
mode. Check to confirm that the image loss and the void area are
in the range shown below.
NOTE: For details of the checking procedures of the image loss
and the void area, refer to the ADJ17 and the ADJ18.
and the void area, refer to the ADJ17 and the ADJ18.
(Adjustment procedure)
a. Image off-center automatic adjustment
(in original table mode)
1)
Enter the SIM50-28 mode.
2)
Select [SETUP/PRINT] ADJ with the key button.
3)
Select [ALL] with the key button.
(Note)
By pressing [LEAD] or [OFFSET] button, the following items
can be executed individually.
* [LEAD]: Print image lead edge image position adjustment
* [OFFSET]: Print image off-center adjustment
By pressing [LEAD] or [OFFSET] button, the following items
can be executed individually.
* [LEAD]: Print image lead edge image position adjustment
* [OFFSET]: Print image off-center adjustment
When [ALL] is selected, both of the above two items are
executed simultaneously.
executed simultaneously.
4)
Select a paper feed tray to be adjusted.
(Select all of paper feed trays.)
(Select all of paper feed trays.)
5)
Press [EXECUTE] key.
The adjustment pattern is printed out.
(Each paper is fed from selected paper feed tray, and the indi-
vidual pattern according to each paper feed tray is printed out.)
The adjustment pattern is printed out.
(Each paper is fed from selected paper feed tray, and the indi-
vidual pattern according to each paper feed tray is printed out.)
Content
Standard adjustment value
Lead edge void area
3.0
±1.0mm
Rear edge void area
2.0 - 5.0mm
FRONT/REAR void area
2.0
±2.0mm
Lead edge image loss adjustment
3.0
±1.0mm
Side image loss adjustment
2.0
±1.0mm
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