MX-2640N, MX-2640NR, MX-2640FN, MX-3140N, MX-3140NR, MX-3140FN, MX-3640N, MX-3640NR, MX-3640FN (serv.man36). Service Manual Revised June 2014. - Sharp Copying Equipment Service Manual (repair manual). Page 111

Read Sharp MX-2640N / MX-2640NR / MX-2640FN / MX-3140N / MX-3140NR / MX-3140FN / MX-3640N / MX-3640NR / MX-3640FN (serv.man36) Service Manual online

MX-3640N  ADJUSTMENTS AND SETTINGS  5 – 68
* If a tone gap occurs on part of high density, set 0 to item A and B
The  density  of hig h  density part  decreases.  However,  the tone
gap is better.
* In case of more increase of the density on high density part, set 1
to item A and B.
The tone gap may occur in high density part.
If the setting values of item C, D, E  and F are changed, density of
the high density part is changed.
When  these values are   changed,  be  sure  to  perform  the  printer
color balance and density adjustment. (Automatic adjustment)
 
10-F
(3)
Printer gamma adjustment for each dither 
(Automatic adjustment) (No need to adjust 
normally) 
a. General
This adjustment is used to adjust the color balance and the density
in the mono chrome mode, the he avy paper mode, and the g loss
paper mode.
This  simulation is  used to improve  image qualit y  in these modes
and images.
b. Adjustment procedures
1) Enter the SIM67-54 mode.
2) Press [EXECUTE] key.
A4/11" x 8.5" or  A3/11" x 17" paper is automatically selected.
The color patch image (adjustment pattern) is printed out.
3) Set the color p atch image (adjustment p attern) printed in the
procedure 2) on the document t able so that the thin lines  on
the printed color patch image (adjustment pattern) are on the
left  side. Place 5  sheets  of  white  paper  on  the  printed  color
patch image (adjustment pattern).
4) Press [EXECUTE] key.
The color balance adjustment is automatically performed.
The adjustment pattern is printed out. Check  it for any abnor -
mality.
5) Press [OK] key.
The list of the adjustment items (for each dither) is displayed.
6) Select an adjustment item (for each dither).
7) Press [EXECUTE] key.
A4/11" x 8.5" or A3/11" x 17" paper is automatically selected.
The color patch image (adjustment pattern) is printed out.
8) Set the color patch image (adjustment pattern) printed in the
procedure 7) on the document table so that the thin lines on
the printed color patch image (adjustment pattern) are on the
left  side.  Place  5  sheets  of  white  paper  on  the  printed  color
patch image (adjustment pattern).
9) Press [EXECUTE] key.
The color balance adjustment is automatically performed, and
the machine goes to the state of procedure 6).
10) When [OK] key is pressed, the adjustment result is registered
and  the  adjustment  mode  is  terminated.  When [EXECU TE]
key  is  pressed,  the adjustment r esult  is  registered  and  the
screen is shifted to the other item (Mode/Image) select menu.
To  execute  the adjustment of  the  other  item  (Mode/Image),
press [EXECUTE] key.
After  completion of  all  the  adjustments  of  the  items  (Mode/
Image), press [OK] key, and the  adjustment results are regis-
tered.
11) Make a print, and check the print image quality.
(Refer  to  the  item  of  the printer   color  balance  and density
check.)
Use SIM67-52 to reset the adjustment values to the default values.
D MAGENTA MAX 
TARGET
Scanner target value for 
MAGENTA maximum density 
correction
0 - 999
500
E
YELLOW MAX 
TARGET
Scanner target value for 
YELLOW maximum density 
correction
0 - 999
500
F
BLACK MAX 
TARGET
Scanner target value for 
BLACK maximum density 
correction
0 - 999
500
Display/Item
Content
Setting 
range
Default
PRINTER CALIBRATION
Select item 
(Mode/Image)
Content
Heavy Paper
Adjustment item to improve the color balance in the 
heavy paper mode
B/W
Adjustment item to improve the density and gradation in 
the monochrome mode
Gloss Paper
Adjustment item to improve the color balance in the 
gloss paper mode
1200dpi 1bit
Adjustment item to improve the color balance in 1200dpi 
mode
PRINTER CALIBRATION
Page of 127
Display

Click on the first or last page to see other MX-2640N / MX-2640NR / MX-2640FN / MX-3140N / MX-3140NR / MX-3140FN / MX-3640N / MX-3640NR / MX-3640FN (serv.man36) service manuals if exist.