Sharp MX-4100N Service Manual page 135

b. Adjustment procedures
(Auto color balance adjustment by the serviceman)
Copy/printer color balance and density adjustment (Automatic adjustment)
(SIM46-74) procedure flowchart
Execute ADJ21F Copy color balance and density/Printer color balance and density
adjustment (automatic density). (SIM46-74)
(Copy color balance and density adjustment (automatic adjustment)
Enter the SIM46-74 mode, and select A4 (11" x 17") paper. (Automatic selection)
Press [EXECUTE] key. (The adjustment pattern is printed.)
Set the adjustment pattern on the document table. Select the factory target or the
service target, and press [EXECUTE] key.
(The adjustment pattern is scanned, and the adjustment is automatically performed to
print the check pattern.) (*1)
Check the printed check pattern for any streaks or unclear copy. (*4)
(Printer color balance and density adjustment (Automatic adjustment))
Press [EXECUTE] key. (The adjustment pattern is printed.)
Set the adjustment pattern on the document table. Select the factory target or the
service target, and press [EXECUTE] key.
(The adjustment pattern is scanned, and the adjustment is automatically performed to
print the check pattern.) (*1)
Check the printed check pattern for any streaks or unclear copy. (*4)
Press [OK] key. (The initial setting of the half tone image correction is automatically
performed.) (*3)
Cancel SIM46-74.
Check the copy color balance and density adjustment result.
Use the test chart (UKOG-0317FCZZ/UKOG-0317FC11) to make a copy in the Text
/Printed Photo mode, and check the copy color balance and density.
Use SIM46-21 to print the color balance check pattern, and check the patch color
balance and density in the process gray. (If the color balance is slightly shifted to
Magenta, it is properly adjusted.)
Are the color balance and density
at the specified level?
Check that the initial setting of the half tone image correction was properly
performed. (*2)
Execute the initial setting of the half tone image correction. (*2)
Execute the half tone image correction. (SIM44-26)
Use the test chart (UKOG-0317FCZZ/UKOG-0317FC11) to make a copy in
the Text/Printed Photo mode, and check the color balance and density.
NO
Are the color balance and density
at the specified level?
Check the printer color balance and density adjustment result with the self print
check pattern.
Use SIM64-5 to print the self print check
pattern, and check the printer color balance
and density.
Are the color balance
and density at the
specified level?
Start
NO
YES
YES
NO
YES
End
MX-5001N ADJUSTMENTS 5 – 93
Automatic adjustment color balance target change
Change the factory color balance and density target
which is available in 3 kinds. (SIM63-11)
NO
Though the factory color
balance and density target
(available in 3 kinds) is
changed, satisfactory color
balance and density are
not obtained (SIM63-11),
or the service target is
selected.
YES
Execute ADJ20C (Copy color balance and density
adjustment) (Manual adjustment). (SIM46-21/44-21)
(*3)
Execute ADJ21A (Printer color balance and
density adjustment)
(Automatic adjustment). (SIM67-24)
Automatic color balance target change
Change the factory color balance and density
(available in 3 kinds). (SIM67-26)
NO
Though the factory color
balance and density target
(available in 3 kinds) is
changed, satisfactory color
balance and density are
not obtained (SIM67-26),
or the service target is
selected.
YES
Execute ADJ21C (Printer color balance
and density adjustment)
(Manual adjustment). (SIM67-25)
*1:
When the color balance and
density are customized and
registered as the service
target, select the service
target.
*2:
If the initial setting of the half
tone image correction is not
properly adjusted, satisfactory
color balance and density
cannot be obtained. In this
case, check the print engine
for any problems.
*3:
If satisfactory color balance and
density are not obtained with
ADJ20C (Copy color balance
and density adjustment) (Manual
adjustment) (SIM46-21/44-21),
check the print engine for any
problems.
*4:
If there is any streak or unclear
copy on the printed check
pattern, check the print engine
for any problems.