Sharp MX 3501N - Color Laser - Copier, Service Manual

Page: 236 / 448

MX3500N SIMULATION 7 – 128
<Descriptions of buttons>
<Result display>
63-3
Purpose Adjustment
Function (Purpose) Used to execute the gamma correction and
density conversion for RGB image data
inputted from the CCD. Gamma correction
1 of the SCAN ASIC and the set value of
color correction are set by calculating from
the image data.
Section Scanner (scan)
Item Image quality (Color balance)
Operation/Procedure
1) When a color button is selected, the adjustment value of the
selected color is displayed.
* When [B] (Blue), [G] (Green), or [R] (Red) button is selected,
the selected button is highlighted and the adjustment value
of the selected color is displayed.
* Only one color button can be selected, and the selected but-
ton is highlighted. In the initial state, [B] is selected.
* If there is a page over [
↑
], an active display is shown and the
page moves up. If there is no page upward, the display
grays out and the operation is invalid.
If there is a page under [
↓
], an active display is shown and
the page moves down. If there is no page downward, the
display grays out and the operation is invalid.
2) Press a button to be executed.
3) Press [EXECUTE] button and it is highlighted and the color
auto adjustment is executed.
* When [EXECUTE] button is pressed during the automatic
adjustment, the automatic adjustment is interrupted.
* Process contents during execution (OC)
a) Sampling setting
b) Scan request
c)
Waiting for reaching the document lead edge
d) Sampling end
e) Sampling result acquisition
f)
Calculation for sampling result
g) Calculation result save
When a scanner motor error occurs (during execution):
When auto adjustment error occurs:
* When an error occurs, all the error patch numbers are displayed.
If there is no error after selection of a color, the screen is similar
to the initial screen. Only the color of an error is displayed as the
above error display.
* When the operation is completed normally, "COMPLETE" is dis-
played. When [RESULT] button is pressed, the display returns to
the initial screen. (The calculation result of normal completion is
displayed.)
(MX-3500N/4500N)
(MX-3501N/4501N)
63-5
Purpose Adjustment
Function (Purpose) Used to reset the gamma correction and
color correction parameters of the SCAN
ASIC.
Section Scanner
Item Clear
Operation/Procedure
1) When a touch panel button to execute the standard reset is
pressed, the selected button is highlighted and [EXECUTE]
button becomes active from the gray-out display.
* When the selected button is pressed again, selection is can-
celed and the button returns to the normal display.
Display Content
OC
SHADING OC analog correction level correction, and shading
correction data making (Document table mode)
DSPF
SHADING DSPF analog correction level correction, and shading
correction data making (SPF mode)
Display Content
COMPLETE Normal completion
ERROR Abnormal completion (When executing DSPF shading)
INCOMPLETE Incomplete, interruption (When executing DSPF
shading)
SIMULATION NO.63 ̆ 02
TEST
SHADING EXECUTION
EXECUTE
0
CLOSE
SELECT OC SHADING/DSPF SHADING, AND PRESS EXECUTE
DSPFSHADING OCSHADING
SIMULATION NO.63 㧙 03
TEST
SCANNER COLOR BALANCE AUTO ADJUSUTMENT
SCANNER MOTOR IS NOT READY
0
1/1
CLOSE
EXECUTE
SIMULATION NO.63 㧙 03
TEST
SCANNER COLOR BALANCE AUTO ADJUSUTMENT
SAMPRING DATA UNFIT
#1, #2, #3, #4, #5, #6, #7, #8, #9, #10, #11, #12, #13, #14, #15,
PLEASE CHECK THE CHART AND PLATEN GLASS
#16, #17, #18, #19, #20, #22, #24
0
RESULT
B
G R
1/1
CLOSE
CLOSE
OC
SIMULATION NO.63 㧙 03
TEST
SCANNER COLOR BALANCE AUTO ADJUSUTMENT
OC #1:197, #2:185, #3:165, #4:148, #5:117, #6:110,
#7: 88, #8: 75, #9: 55, #10: 45, #11: 38, #12: 29,
#19: 5, #20: 4, #22: 2, #:24: 2
#13: 27, #14: 21, #15: 18, #:16:15, #17: 10, #18: 8,
0
1/2
B G R
CLOSE
OC
SIMULATION NO.63-03
TEST
SCANNER COLOR BALANCE AUTO ADJUSUTMENT
OC #1:197, #2:185, #3:165, #4:148, #5:117, #6:110,
#7: 88, #8: 75, #9: 55, #10: 45, #11: 38, #12: 29,
#19: 5, #20: 4, #22: 2, #:24: 2
#13: 27, #14: 21, #15: 18, #:16:15, #17: 10, #18: 8,
0
1/4
DSPF
B G
R