Sharp AR-BC260 Service Manual page 127

5) Enter the SIM 63-09 mode and press the [EXECUTE] key.
The automatic adjustment is performed. During the adjustment,
the [EXECUTE] key is highlighted. When the adjustment is com-
pleted, the [EXECUTE] key returns to the normal display.
6) Cancel the simulation mode.
Note: The SIT chart (UKOG-0280FCZZ) is affected by lights
(especially ultra-violet rays) and temperature and humidity.
Store it in a clear file (nylon file) in a dark place.
ADJ 11G Image edge section gamma/density
adjustment (Black text and black line
reproduction adjustment)
(Normally unnecessary to adjust.)
The gamma or density of black toner component images is
changed to adjust the reproduction of the profile of the black char-
acter and line optionally. Especially the thickness of fine black
character and line is changed.
Since the black toner component image quantity differs depending
on each copy mode, be careful to selection of the copy mode
when checking the result of this adjustment. Check in the Text/
Printed photo copy mode.
This adjustment is valid only in the Text mode, the Text/Printed
photo mode, and the Text/Photograph mode.
When the adjustment value different from the default value is
used, this adjustment must be performed in the following cases:
• When U2 trouble occurs.
• When the MFP PWB is replaced.
• When the EEPROM of the MFP PWB is replaced.
1) Enter the SIM 46-27 mode.
2) Enter the adjustment value with the 10-key.
BLACK TEXT Black image edge section gamma (tilt) adjust-
(SLOPE): ment (Black text and black line reproduction
adjustment)
When the adjustment value is increased, the black toner com-
ponent image contrast becomes greater, and vice versa.
BLACK TEXT Black image edge section density (overall
(INTERCEPT): level) adjustment (Black txt and black line
reproduction adjustment)
The greater the adjustment value is, the greater the density is,
and vice versa.
Normally set to the default (50).
3) Press the [OK] key.
4) Cancel the simulation, and make a copy in the Text/Printed
ADJ 11H
This adjustment is used to adjust color balance and the density
according to the user's demand.
The adjustment is made by setting the max. density level of Y, M
and C in each color.
This adjustment is required in the following cases when the default
was changed:
• When a consumable part (developer, photoconductor drum,
transfer belt) is replaced.
• When the CCD unit is replaced.
• When the scanner (reading) section is cleaned.
• When U2 trouble occurs.
• When the MFP PWB is replaced.
• When the EEPROM of the MFP PWB is replaced.
a. Note for the adjustment
∗ This adjustment is not required in the normal state, but executed
only when the user requests for.
b. Adjustment procedure
1) Enter the SIM 46-25 mode.
2) Select the color to be adjusted with the scroll key.
3) Select the color with the color key.
4) Enter the adjustment value of each toner color with the 10-key.
A
B
C
D
E
F
5) Cancel the simulation mode and make a copy in the single
ADJ 11I
a. Outline
The user can perform the copy color balance and auto density
adjustment in the user program mode.
SIIM 26-53 is used to Enable or Disable this operation.
Note: This setup is performed only when the user understands the
AR-BC260 SETTING AND ADJUSTMENTS 8 - 34
Photo mode to check the reproduction of fine black character
and line.
Use a document with black characters and lines on it for
checking.
Copy color balance adjustment
(Single color Copy mode)
(Normally unnecessary to adjust.)
(Default)
Min
Display
value
RED 0
GREEN 0
BLUE 0
YELLOW 0
MAGENTA 0
CYAN 0
color copy mode to check.
Auto color balance adjustment by
user (Copy color balance auto
adjustment enable setting and
adjustment)
copy color balance and the auto density adjustment and is
capable of performing the operation.
Full explanations on the operating procedure, notes, and
operations must be given to the user.
Default value
Max
value
C M Y
255 0 255 255
255 255 0 255
255 255 255 0
255 255 0 0
255 0 255 0
255 0 0 255