Sharp MX-2640N / MX-2640NR / MX-2640FN / MX-3140N / MX-3140NR / MX-3140FN / MX-3640N / MX-3640NR / MX-3640FN (serv.man36) Service Manual ▷ View online
MX-3640N ADJUSTMENTS AND SETTINGS 5 – 42
b. Adjustment procedure
YES
NO
YES
NO
NO
YES
Copy color balance and density adjustment (Manual adjustment) procedure
flowchart (SIM46-21)
flowchart (SIM46-21)
Start
Execute ADJ10C(2) (Copy color balance and density adjustment)
(Manual adjustment). (*1)
(Manual adjustment). (*1)
Enter the SIM46-21 mode, and select A4 (11" x 8.5") paper.
(Automatic selection)
(Automatic selection)
Press [EXECUTE] key.
(The adjustment check pattern is printed.)
(The adjustment check pattern is printed.)
Refer to the printed adjustment check pattern, and select a
target adjustment color with the color keys (C, M, Y, K).
target adjustment color with the color keys (C, M, Y, K).
Select a target adjustment level with the scroll key.
Enter the adjustment value with 10-key.
Press [EXECUTE] key.
(The adjustment check pattern is printed.)
(The adjustment check pattern is printed.)
Check the patch color balance and density in the process
gray of the color balance check pattern. (If the gray color is
slightly shifted to Magenta, the color balance is properly
adjusted.)
gray of the color balance check pattern. (If the gray color is
slightly shifted to Magenta, the color balance is properly
adjusted.)
Are the color balance
and density at the sati-
sfactory level?
and density at the sati-
sfactory level?
Are the color balance
and density at the sati-
sfactory level?
and density at the sati-
sfactory level?
Are the color balance
and density at the sati-
sfactory level?
and density at the sati-
sfactory level?
Cancel the SIM46-21 mode.
Perform the initial setting of the halftone image correction.
(SIM44-21)
(SIM44-21)
Check the copy color balance and density adjustment result with the
test chart. (*1)
test chart. (*1)
Use the test chart (UKOG-0326FCZZ/UKOG-0326FC11)
to make a copy in the Text/Printed Photo mode, and check
the color balance and density.
to make a copy in the Text/Printed Photo mode, and check
the color balance and density.
Check to confirm that the initial setting of the halftone image correction is
properly set. (*2)
properly set. (*2)
Perform the initial setting of the halftone image correction.
(SIM44-21)
(SIM44-21)
Perform the halftone image correction. (SIM44-26)
Use the test chart (UKOG-0326FCZZ/UKOG-0326FC11)
to make a copy in the Text/Printed Photo mode, and check
the color balance and density.
to make a copy in the Text/Printed Photo mode, and check
the color balance and density.
Set the SERVICE target for the automatic copy color
balance adjustment. (SIM63-7)
balance adjustment. (SIM63-7)
End
*1:
If satisfactory color balance and density are not
obtained with the adjustment, check the print
engine for any problems.
*2:
If the initial setting of the halftone image
correction is not properly adjusted, satisfactory
color balance and density cannot be obtained. In
this case, check the print engine for any problems.
If satisfactory color balance and density are not
obtained with the adjustment, check the print
engine for any problems.
*2:
If the initial setting of the halftone image
correction is not properly adjusted, satisfactory
color balance and density cannot be obtained. In
this case, check the print engine for any problems.
MX-3640N ADJUSTMENTS AND SETTINGS 5 – 43
1) Enter the SIM46-21 mode.
2) Press [EXECUTE] key. (A4/11" x 8.5" or A3/11" x 17" paper is
automatically selected.)
The color balance adjustment pattern is printed.
The color balance adjustment pattern is printed.
3) Check that the following specification is satisfied or the color
balance is satisfactory.
If not, execute the following procedures.
If not, execute the following procedures.
The print density must be changed gradually from the lighter
level to the darker level. The density changing direction must
not be reversed.
The density level of each color must be almost at the same
The density level of each color must be almost at the same
level.
Patch B may not be copied.
Patch A must not be copied.
When, however, the color balance is adjusted according to a
Patch A must not be copied.
When, however, the color balance is adjusted according to a
request from the user, there is no need to set to the standard
color balance stated above.
If the color balance of each patch of the process black (CMY
If the color balance of each patch of the process black (CMY
mixed color) is slightly shifted to Magenta, it means that the
adjustment is proper. If the color balance of the adjustment
pattern printed in this mode is slightly shif ted to Magenta, it is
converted into the natural gray color balance by the color cor-
rection table in an actual copy mode. (When the color balance
target is DEF 1.)
4) Select the color to be adjusted with the color select key, and
select the adjustment point with the scroll key.
5) Enter the adjustment value with 10-key and press [OK] key.
The adjustment valu e is set in the ran ge of (1 - 999) . When
SIM 46-24 is used to adju st the automatic color balance and
density, all the set values of this simulation are set to 500.
To increase the density, increase the adjustment value. To
To increase the density, increase the adjustment value. To
decrease the density, decrease the adjustment value.
Repeat procedures of 2) - 5) until the condition of 3) is satis-
Repeat procedures of 2) - 5) until the condition of 3) is satis-
fied.
When the overall density is low, or when the density is high
and patch A is copied, use the arrow key to adjust all the
adjustment values of A - Q (MAX) to a same level collectively.
Then, adjust each patch density individually. This is an efficient
Then, adjust each patch density individually. This is an efficient
way of adjustment.
Referring to the black/gray patches, adjust so that each pro-
Referring to the black/gray patches, adjust so that each pro-
cess (CMY) black/gray patch color balance of A - Q (MAX)
approaches the black/gray patch level as far as possible.
6) Make a copy of th e servicing color test chart (UKOG-
0326FCZZ/UKOG-0326FC11) and a use r's document accord-
ing to necessity in the normal copy mode, the text/Printed
Photo mode (Manual) to check the adjustment result.
(Refer to the item of the copy color balance/density check.)
(Refer to the item of the copy color balance/density check.)
7) Execute SIM 44-21. (Execute the initial setting of the halftone
image correction.)
It takes several minutes to complete the opera tion. After com-
pletion of the operation, "COMPLETE" is displayed.
End of print
EXECUTE
10-key
EXECUTE
C
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High
density
density
1) The max. density section is not blurred.
2) Patch C or D of each of Y, M, C, and BK is very slightly copied.
Low
density
density
CMY
blend
blend
3) Patch for each of Y, M, C, BK
The patch density is identical between patches or not reversed.
The patch density is changed gradually.
The patch density is changed gradually.
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MX-3640N ADJUSTMENTS AND SETTINGS 5 – 44
(Normal end (Auto transition))
(Abnormal end (Auto transition))
After completion of the operation, the simulation is canceled.
This procedure is to save the copy color balance adjustment
data as the reference data for the halftone correction.
Immediately after execution of ADJ 10C (2) (Color balance
Immediately after execution of ADJ 10C (2) (Color balance
adjustment, Manual) with SIM 46-21, be sure to execute this
procedure.
When ADJ 10C (1) (Color balance adjustment, Auto) is exe-
When ADJ 10C (1) (Color balance adjustment, Auto) is exe-
cuted with SIM 46- 24, this pr ocedure is automatically exe-
cuted.
8) Use SIM 44-26 to execute the halftone image corr ection.
(Forcible execution)
Enter the SIM 44-26 mode and press [EXECUTE] key.
[EXECUTE] key is highlighted and the operation is started.
Enter the SIM 44-26 mode and press [EXECUTE] key.
[EXECUTE] key is highlighted and the operation is started.
It takes several minutes to complete the ope ration. After com-
pletion of the operation, "COMPLETE" is displayed.
(Normal end (Auto transition))
(Abnormal end (Auto transition))
After completion of the operation, the simulation is canceled.
9) Make a copy of th e servicing color test chart (UKOG-
0317FCZZ/UKOG-0317FC11) and a use r's document accord-
ing to necessity in the T ext/Printed Photo mode ( Manual) and
check the adjustme nt result a gain. (Refer to the it em of the
copy color balance/density check.)
If the copy color balance and density are not adjusted to the
If the copy color balance and density are not adjusted to the
specified level, there may be another cause.
Troubleshoot the cause, and rep air or perform proper treat-
Troubleshoot the cause, and rep air or perform proper treat-
ments, and try all the procedures of the print image adjustment
from the beginning.
If the color balance is customized, use SIM 63-7 to register the
color balance as the service target.
If the color b alance is not customized, t his procedure is not
If the color b alance is not customized, t his procedure is not
required.
If the customized color balance is registered as the service tar-
If the customized color balance is registered as the service tar-
get, the automa tic color balance adjustment can be made in
the next color balance adjustment.
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MX-3640N ADJUSTMENTS AND SETTINGS 5 – 45
10-D
Copy / Image send / FAX image quality
adjustment (Individual adjustment)
a. General
This adjustment is used to execute the fine adjustment in each mode only when a satisfactory image quality is not obtained by the basic adjust-
This adjustment is used to execute the fine adjustment in each mode only when a satisfactory image quality is not obtained by the basic adjust-
ments ADJ 10B and ADJ 10C or there is a request from the user. Normally there is no need to execute this adjustment.
In this adjustment, the adjustment result may be applied to the image send mode and the FAX mode as well as the copy mode.
This must be well understood for execution of the adjustment.
In this adjustment, the adjustment result may be applied to the image send mode and the FAX mode as well as the copy mode.
This must be well understood for execution of the adjustment.
Copy MODE
IMAGE SEND(SCAN) MODE
Color mode
Monochrome
mode
Color mode
Monochrome
mode
Auto Manual Auto Manual Auto Manual Auto Manual
FAX
Printer
46-01 Color copy density adjustment (for each
color copy mode) (separately for the low-
density area and the high-density area)
(No need to adjust normally)
-
-
-
-
-
-
-
-
46-02 Monochrome copy density adjustment (for
each monochrome copy mode) (separately
for the low-density area and the high-density
area) (No need to adjust normally)
-
-
-
-
-
-
-
-
46-04 Color image send mode image density
adjustment (for each mode)
(No need to adjust normally)
-
-
-
-
-
-
-
-
46-05 Monochrome image send mode image
density adjustment (for each mode)
(No need to adjust normally)
-
-
-
-
-
-
-
-
46-08 Image send mode RGB color balance
adjustment (separately for the low-density
area and the high-density area)
(No need to adjust normally)
-
-
-
-
-
-
-
-
46-09 RSPF mode (Copy/Scan/FAX) density
adjustment (No need to adjust normally)
-
46-10 Color copy color balance, gamma
adjustment (for each color copy mode)
(No need to adjust normally)
-
-
-
-
-
-
-
-
46-16 Monochrome copy density, gamma
adjustment (for each monochrome copy
mode) (No need to adjust normally)
-
-
-
-
-
-
-
-
46-19 Automatic monochrome (Copy/Scan/FAX)
mode document density scanning operation
(exposure operation) conditions setting
(Normally no need to set)
-
-
-
-
-
-
-
46-21 Copy color balance and density adjustment
(Manual adjustment)
-
-
-
-
-
-
46-23 Copy high density image density
reproduction setting (Normally unnecessary
to the setting change)
-
-
-
-
-
-
46-24 Copy color balance and density adjustment
(Automatic adjustment)
-
-
-
-
-
-
46-25 Copy color balance adjustment (Single color
copy mode) (No need to adjust normally)
-
-
-
-
-
-
-
-
-
46-26 Single color copy mode color balance
default setting
-
-
-
-
-
-
-
-
-
46-27 Color copy, text, line image reproduction
adjustment (edge gamma, density
adjustment) (Text, Map mode)
(No need to adjust normally)
-
-
-
-
-
-
-
-
46-30 Copy mode sub scanning direction
resolution setting
-
-
-
-
-
-
-
-
46-32 Document low density image density
reproduction adjustment in the automatic
monochrome (Copy/Scan/FAX) mode
(No need to adjust normally) (Background
density adjustment in the scanning section)
-
-
-
-
-
-
-
46-36 2-color (red, black) copy mode fine color
adjustment (No need to adjust normally)
-
-
-
-
-
-
-
-
-
46-37 Monochrome (Copy/Scan/FAX) mode color
document reproduction adjustment
(No need to adjust normally)
-
-
-
-
(*3)
46-38 Color copy mode dark area gradation (black
component quantity) adjustment
(No need to adjust normally)
-
-
-
-
-
-
-
-
46-39 FAX send image sharpness adjustment
-
-
-
-
-
-
-
-
-
46-40 FAX send image density adjustment
(Collective adjustment of all the modes)
-
-
-
-
-
-
-
-
-
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