Sharp Mx 2310u Owners Manual

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 15
7) Press [OK] key.
The adjustment result becomes valid.
 
4-D Copy mode image lead edge position, 
image loss, void area, image off-center, sub 
scanning direction image magnification 
ratio automatic adjustment (Scanner) 
(RSPF mode)
1) Enter the SIM50-28 mode.
2) Press the [SPF ADJ] key.
3) Proceed to one of the three screens for selecting the cassette
used to print RSPF adjustment patterns by selecting the corre-
sponding button:
SIDE1: RSPF adjustment for...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 16
9) Press the [EXECUTE] key, and the machine starts loading
RSPF adjustment patterns (for the back side).
* The screen shows a message indicating that the machine isreading RSPF adjustment patterns (for the back side).
The machine starts calculating the adjustment amount (for
the back side) after it has read the patterns for the back side.
After the machine has finished calculating the adjustment
amount for the back side, the next screen appears where
you can...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 17
4) Write down the displayed skew level.
Meaning of the skew level value and the adjustment pro-
cedure
* If OK is displayed for all items of SKEW ALL_ROTATE, C, M, and Y, there is no need to perform the adjustment.
* When R is displayed at the head of the value, turn the LSU  skew adjustment screw clockwise.
* When L is displayed at the head of the value, turn the LSU  skew adjustment screw counterclockwise.
* The turning amount of the adjustment screw...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 18
6) Repeat the procedures 2) to 4) again, and check to confirm
that C, M, and Y (SKEW) are OK.
If any of them is NG, turn the LSU skew adjustment screw of
the corresponding color to adjust.
When the adjustment is made by  turning the LSU skew adjustment
screw of K, the states of C, M and Y (SKEW) are changed. Execute
SIM50-22 to check to confirm that C, M, and Y (SKEW) are OK.
When an abnormality occurs , ERROR is displayed.
In this case, check each drive section...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 19
5) Open the front cover, remove the waste toner box, and turn the
four LSU image skew adjustment screws in the same direction
by the same amount. 
For the adjustment, remove the front cover and the waste
toner box, and turn the skew adjustment screw.
(Skew adjustment screw rotation direction)
When C is greater than D in the method 1 or there is some
skew in the direction A in the method 2, turn the screw clock-
wise.
When C is smaller than D in the method 1 or...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 20
 
5-CColor registration offset adjustment 
(No need to adjust normally)
This adjustment is used to set  the offset value for the automatic
color registration adjustment (ADJ 5A).
If there is any difference in co lor phase at the center and the four
corners of an actual print image, this adjustment may improve it.
Especially when there is any color shift at the center area, this
adjustment may improve it effectively.
This adjustment cannot eliminate color shifts...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 21
(Reference adjustment value)
1 scale/1 (When the set value is changed by 1, shift is made by 1
scale.)
If there is a considerable difference in color shift in the square and
at the center area, perform the adjustment.
Select an adjustment item (OFF SET X F / OFF SET X R / OFF
SET X S), and change the adjustment value to adjust.
OFF SET X F: F side main scanning direction registration offset set
value (The color shift on the F side and at the center area is...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 22
2) Turn the scanner drive pulley manually and shift the scanner
unit B to bring it into contact with the stopper.
When the scanner unit B is in contact with the two stoppers on
the front and the rear frames simultaneously, the parallelism is
proper.
If this requirement is not met, do the following steps.
3) Loosen the fixing screw of the pulley angle on the front frame side of the scanner unit B.
4) Adjust the position of the pulley angle on the front frame side...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 23
2) Set the test chart prepared in the procedure 1) on the docu-
ment table. (Shift the test chart edge 30mm from the reference
position as shown below.) With the document cover open,
make a copy on A3 (11 x 17) paper.
3) Check for distortion in the sub scanning direction. If La = Lb, there is no distortion.
If there is any distortion in the sub scanning direction, perform
the following procedures.
4) Loosen either one of the fixing sc rews of the scanner unit...

MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 24
5) Change the height balance of the scanner rail on the front
frame side.
Remove the lower cabinet of the operation panel. Loosen the
scanner rail fixing screw to change the balance between the
right and the left heights of the scanner rail.
Repeat the procedures 2) - 5) until the difference between the
image distortions (distort ion balance) is deleted.
6) Without changing the balance of the scanner rail on the front frame side, change the overall height.
7)...