Sharp MX-4100N Service Manual page 115

(Adjustment 2)
This adjustment is used to change the gamma and the density in
the Text/Map copy mode.
This adjustment is required in the following cases.
* To change the contrast and the density of the Text/Map copy
mode images.
* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
1) Enter the SIM 46-27 mode.
10-key
2) Select the mode to be adjusted with the scroll key.
Display/Item (Copy mode)
A BLACK TEXT Black character edge
(SLOPE) gamma skew
adjustment
B BLACK TEXT Black character edge
(INTERCEPT) density adjustment
C COLOR Color character edge
TEXT(SLOPE) gamma skew
adjustment
D COLOR TEXT Color character edge
(INTERCEPT) density adjustment
E ED TEXT (SLOPE) Text/Map mode
gamma adjustment
(Text/Map mode)
F ED TEXT Text/Map mode density
(INTERCEPT) adjustment
(Text/Map mode)
3) Enter the adjustment value with 10-key.
When the adjustment value of the adjustment item E is
changed, the gamma (contrast) is changed.
When the adjustment value is increased, the contrast is
increased, and vice versa.
When the adjustment value of the adjustment item F is
increased, the image density is increased, and vice versa.
4) Press [OK] key.
5) Press [CLOSE] key to cancel the simulation mode.
6) Make a copy in the Text/Map copy mode (manual), and check
the output print.
OK
Adjust
Content ment Default
range
1 - 99
1 - 99
1 - 99
1 - 99
1 - 99
1 - 99
MX-5001N ADJUSTMENTS 5 – 73
If a satisfactory result is not obtained, use SIM46-27 to change the
adjustment value.
Repeat the above procedures until a satisfactory result is obtained.
20-L Color document reproducibility adjustment
in the monochrome copy mode
(Normally unnecessary to adjust)
Use to adjust the reproducibility for the red image and the yellow
image when printing color document that included the red/yellow
image in monochrome copy mode.
This adjustment is required in the following cases.
* When there is desire to change reproducibility of yellow/red
image in case of making a color copy of the color document in
monochrome copy mode.
* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
1) Enter the SIM 46-37 mode.
50
50
EXECUTE
50
50
50
50
10-key
DEFAULT
OK
NO
YES