Read Sharp MX-M364N / MX-565N (serv.man4) Service Manual online
MX-M565N ADJUSTMENTS AND SETTINGS 4 – 30
(4) Printer gray balance/density check
NOTE: Before checking the copy gray balance and the density, be
sure to execute the following procedures in advance.
* Execute the high density image correction (Process correction)
forcibly. (SIM 44-6)
* The half-tone image correction is forcibly executed. (SIM 44-26)
Method 1
Execute SIM 64-5 to print the print test pattern.
Set each set value to the default and press [EXECUTE] key. The
print test pattern is printed.
print test pattern is printed.
The print density must be changed gradually from the lighter level
to the darker level. The density changing direction must not be
reversed.
to the darker level. The density changing direction must not be
reversed.
11-A
Scanner calibration (CCD calibration)
This adjustment must be performed in the following cases:
* When the CCD unit is replaced.
* When a U2 trouble is occurred.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
11-A
(1)
CCD gamma adjustment (CCD calibration)
(Document table mode)
CCD gamma adjustment (CCD calibration)
(Document table mode)
(1) Note before adjustment
? Check that the table glass, No. 1, 2, 3 mirrors, and the lens sur-
face are free from dirt and dust.
(If there is some dust and dirt, wipe and clean with alcohol.)
(If there is some dust and dirt, wipe and clean with alcohol.)
? Check to confirm that the patches in BK1 and BK2 arrays of the
SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1) are free from
dirt and scratches.
dirt and scratches.
If they are dirty, clean them.
If they are scratched or streaked, replace with new one.
(2) Adjustment procedures
1)
Set the SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1) to
the reference position on the left rear frame side of the docu-
ment table.
the reference position on the left rear frame side of the docu-
ment table.
Set the chart so that the lighter density side of the patch is on
the left side.
the left side.
If the SIT chart is not available, execute SIM 63-5 to set the
CCD gamma to the default. In this case, however, the adjust-
ment accuracy is lower when compared with the adjustment
method using the SIT chart.
CCD gamma to the default. In this case, however, the adjust-
ment accuracy is lower when compared with the adjustment
method using the SIT chart.
NOTE: Check to insure that the SIT chart (UKOG-0280FCZZ or
UKOG-0280FCZ1) is in close contact with the document
table.
table.
NOTE: UKOG-0280FCZZ is equivalent to UKOG-0280FCZ1.
2)
Enter the SIM 63-3 mode and press [EXECUTE] key.
The automatic operation is started. During the adjustment,
[EXECUTE] is highlighted. After completion of the adjustment,
[EXECUTE] returns to the normal display.
[EXECUTE] is highlighted. After completion of the adjustment,
[EXECUTE] returns to the normal display.
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