Sharp Mx 2300n Service Manual

							MX-2300/2700 N/G  ADJUSTMENTS  6 – 37 (Abnormal end (Auto transition))
After completion of the operation, the simulation is canceled.
8) Use the servicing color test chart (UK0G-0283FCZZ) in the
Text/Photo mode (Manual) to check the copy color balance/
density. (Refer to the item of the copy color balance/density
check.)
If the copy color balance and density are not satisfactory, per-
form the following procedures.
9) Execute the initial setting of the half tone image correction.
(SIM 44-21)
10) Execute the half tone image correction. (Forcible execution)
(SIM44-26)
11) Use the servicing color test chart (UK0G-0283FCZZ) in the
Text/Printed Photo mode (Manual) to check the copy color bal-
ance/density. (Refer to the item of the copy color balance/den-
sity check.)
Repeat the procedures 9) – 11) until a satisfactory result is
obtained.
However, the number of times of repeat is limited to 3 times. If the
copy color balance and density are not adjusted to the specified
level by repeating the procedures 3 times, there may be another
cause.
Troubleshoot the cause and repair or perform proper treatments,
and try all the procedures of the print image adjustment from the
beginning.
If the automatic adjustment cannot obtain satisfactory results of the
copy color balance and density, use SIM 46-21 (ADJ M19C) (Man-
ual adjustment).
 20-C Copy color balance adjustment (Manual
adjustment)
This adjustment is required in the following cases:
* When a consumable part (developer, OPC drum, transfer belt) is
replaced.
* When the CCD is replaced.
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
a. General
The color balance adjustment (Manual adjustment) is used to
adjust the copy density (15 pts for each color) of CMYK according
to a request from the user for changing (customizing) the color bal-
ance because the automatic adjustment stated above is resulted in
an unsatisfactory result or a fine adjustment is required.
In this manual adjustment, adjust only the color patch which could
not adjusted properly in the automatic adjustment.
If the color balance is improper, execute the automatic color bal-
ance adjustment in advance, and execute this adjustment for better
efficiency.b. Note for the color balance adjustment (Manual adjustment)
1) The print engine section must have been adjusted properly.
2) The CCD gamma adjustment must have been adjusted prop-
erly.
3) Set the color patch image adjustment patter on the document
table, and place 5 sheet of white paper on it.
4) Be sure to use the specified paper for color.
5) Before execution of the image quality check and adjustment,
be sure to execute the following corrections to set the image
forming section to the optimum state.
* Execute the high density image correction (process correc-
tion) forcibly. (SIM 44-6)
* Execute the half tone image correction forcibly. (SIM 44-26)
c. Adjustment procedure
1) Enter the SIM 46-21 mode.
2) Press [EXECUTE] key. (A3 or 11 x 17 paper is automatically
selected.)
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.
The print density must be changed gradually from the lighter
level to the darker level. The density changing direction must
not be reversed.
KMYC
SIMULATIONNO.44-26TESTHALF TONE DENSITY CORRECT EXECUTION
[S_VALUE]
#1: ERR, #2: ERR, #3: ERR, #4: ERR, #5: ERR
#6: ERR, #7: ERR, #8: ERR, #9: ERR, #10: ERR
#11: ERR, #12: ERR, #13: ERR, #14: ERR,#15: ERR
1/1EXECUTE
CLOSE0
0
A:A:xxx
B:xxx
C:xxx9çPOINT1
9çPOINT2
9çPOINT3
SIMULATIONNO.46-21
ENGINECOLOR BALANCE MANUAL ADJUSTMENT [ALL(COLOR)]
xxx
245755
OK
TEST
KCMY
CLOSE
EXECUTE
D : xxx
9çPOINT4
EXECUTE
EXECUTE
0
A:A:xxx
B:xxx
C:xxx9çPOINT1
9çPOINT2
9çPOINT3
SIMULATIONNO.46-21
ENGINECOLOR BALANCE MANUAL ADJUSTMENT [ALL(COLOR)]
xxx
245755
OK
TEST
KCMY
CLOSE
EXECUTE
D : xxx
9çPOINT4
C
10-key
or self print end
Max
A B C D E F G H I J K L M N O C M Y
Bk
Low density High density
1) The max. density
section is not blurred.3) Patch C or D of each of Y, C, M,
and BK is very slightly copied.
2) Patch A of each of Y, M,
C, and BK are not copied.4) Patch for each of C, M, Y, BK
• The patch density is identical between patches or not reversed.
 The patch density is changed gradually.
CMY
mixed
color 
						

							MX-2300/2700 N/G  ADJUSTMENTS  6 – 38 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
request from the user, there is no need to set to the standard
color balance stated above.
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 value is set in the range of 245 – 755 (1 –
999). When SIM 46-24 is used to adjust 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
decrease the density, decrease the adjustment value.
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 – O to a same level collectively.
Then, adjust each patch density individually. This is an efficient
way of adjustment.
Referring to the black and gray patches, adjust so that each
process (CMY) black/gray patch color balance of A – O
approaches the black/gray patch level as far as possible.
6) Make a copy of the servicing color test chart (UK0G-
0283FCZZ) and a users document according 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.)
7) Execute SIM 44-21. (Execute the initial setting of the half tone
image correction.)
It takes several minutes to complete the operation. After com-
pletion of the operation, COMPLETE is displayed.
(Normal end (Auto transition))(Abnormal end (Auto transition))
After completion of the operation, cancel the simulation.
This procedure is to save the copy color balance adjustment
data as the reference data for the half tone correction.
Immediately after execution of ADJ 20C (Color balance adjust-
ment, Manual) with SIM 46-21, be sure to execute this proce-
dure.
When ADJ 20B (Color balance adjustment, Auto) is executed
with SIM 46-24, this procedure is automatically executed.
When [EXECUTE] key is pressed, it is highlighted and the
operation is started.
8) Execute SIM 44-26 to perform the half tone image correction.
(Forcible execution)
Enter the SIM 44-26 mode and press [EXECUTE] key.
[EXECUTE] key is highlighted and the operation is started.
It takes several minute to complete the operation. After com-
pletion of the operation, COMPLETE is displayed.
(Normal end (Auto transition))
(Abnormal end (Auto transition))
After completion of the operation, cancel the simulation.
SIMULATIONNO.44-21TEST
HALF TONE PROCON STANDARD VALUE REGISTER
EXECUTE
0
CLOSE
TOUCH [EXECUTE] THEN EXECUTION START.
SIMULATIONNO.44-21TEST
HALF TONE PROCON STANDARD VALUE REGISTER
EXECUTE
0
CLOSE
RESULT
COMPLETE
RESULT
SIMULATIONNO.44-21TEST
HALF TONE PROCON STANDARD VALUE REGISTER
EXECUTE
0
CLOSE
RESULT
ERROR:K,C,M,Y
RESULT
SIMULATIONNO.44-26TEST
HALF TONE DENSITY CORRECT EXECUTION
EXECUTE
0
CLOSE
TOUGH [EXECUTE] THEN EXECUTION START.
SIMULATIONNO.44-26TEST
HALF TONE DENSITY CORRECT EXECUTION
EXECUTE
0
CLOSE
RESULT
COMPLETE
RESULT
SIMULATIONNO.44-26TEST
HALF TONE DENSITY CORRECT EXECUTION
EXECUTE
0
CLOSE
RESULT
ERROR:K,C,M,Y
RESULT 
						

							MX-2300/2700 N/G  ADJUSTMENTS  6 – 39 9) Make a copy of the servicing color test chart (UK0G-
0283FCZZ) and a users document according to necessity in
the Text/Printed Photo mode (Manual) and check the adjust-
ment result again. (Refer to the item of the copy color balance/
density check.)
If the copy color balance and density are not in the specified
level, repeat procedures of 7) – 9) until they are in the speci-
fied range.
The number of repeat is, however, limited to 3 times.
If the copy color balance and density are not adjusted to the
specified level by repeating the procedures 3 times, there may
be another cause.
Troubleshoot the cause, and repair or perform proper treat-
ments, and try all the procedures of the print image adjustment
from the beginning.
(NOTE)
If the color balance is customized, use SIM 63-7 to register the
color balance as the service target.
If the color balance is not customized, this procedure is not
required.
If the customized color balance is registered as the service tar-
get, the automatic color balance adjustment can be made in
the next color balance adjustment.
In the next color balance adjustment, select the service target
color balance in the automatic color balance adjustment mode
to make an adjustment to the similar color balance as the reg-
istered color balance.
(Auto color balance adjustment target gamma setting)
a. General
When the automatic color balance adjustment is executed, a cer-
tain color balance (gamma) is used as the target.
There are following three kinds of the target.
• Factory color balance (gamma) target
• Service color balance (gamma) target
• User color balance (gamma) targetIn the above three, only the service color balance target can be set
to a desired level. 
This adjustment is required in the following cases:
* When the copy color balance/density adjustment (manual adjust-
ment) is executed with SIM 46-21).
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
* When the user requests for customizing the color balance.
* When the service color balance target gamma is judged as
improper.
• Each color balance target for the copy color balance adjustment
• Relationship between the factory target and the service target and the color balance target for the user color balance adjustment in the copy
color balance adjustment (SIM 46-24)
Kind Descriptions
AFactory 
color 
balance 
(gamma) 
targetThere are three kinds of the color balance target, and each 
of them is specified according to the machine design. Use 
SIM 63-11 to select one of them as the factory target. The 
default setting (factory setting) is the color balance (DEF1) 
which emphasizes color reproduction.  
B Service 
color 
balance 
(gamma) 
targetThis target is used when the user requests to customize 
the color balance to user’s desired level. In advance, the 
user’s unique color balance must be registered as the 
service color balance target.
The above registration (setting) is made by the serviceman 
with SIM 46-21 to adjust the color balance and with SIM 
63-7 to register it.
This color balance target is used when the user executes 
the color balance adjustment.
When, therefore, the service color balance target is 
changed, the color balance target of the user’s color 
balance adjustment is also changed. When, however, SIM 
63-8 is executed, the color balance is set to the factory 
color balance target set with SIM 63-11.
The default setting (factory setting) of the color balance is 
same as the factory color balance target. (Emphasized on 
color reproduction (DEF1))
If the user does not request for customizing the color 
balance, be sure to use SIM 63-8 to set the color balance 
to the factory color balance target. 
CUser 
color 
balance 
(gamma) 
targetSame color balance as the service color balance (gamma) 
target
When the service color balance target is changed, this 
color balance target is also changed accordingly. 
Factory color balance
target (DEF2)
Factory color balance
target (DEF1)
Factory color balance
target (DEF3)
Factory color balance
target (DEF1)Service color balance
target=
Factory color balance
target (one of DEF1 – 3)Service color balance
target= Factory color balance
target (one of DEF1 – 3)
Service color balance
target (Unique)≠Use SIM 46-21 to adjust the
optional color balance, and
use SIM 63-7 to register it.
Execute SIM 63-8.
(The service color balance
target is the same as the
factory color balance target.)
Factory setting
Color balance target for
the user color balance
adjustmentService color balance
target=
Use SIM 63-11 to select
one of the three kinds of
color balance targets.Color balance target in the copy color balance
automatic adjustment (SIM 46-24)
Color balance target in the user color balance adjustment 
						

							MX-2300/2700 N/G  ADJUSTMENTS  6 – 40 • Factory target in the copy color balance adjustment (SIM 46-24)
By use of SIM 63-11, one of the following color balances can be set as the factory color balance target.
Each of the three color balances cannot be changed. (Fixed)
• Service color balance target in the copy color balance adjust-
ment (SIM 45-24).
For the service color balance target, an optional color balance
can be adjusted with SIM 46-21 and registered with SIM 63-7.
When, however, SIM 63-8 is executed, the color balance is set to
the same balance as the factory color balance target set with
SIM 63-11.
• Color balance target in the user color balance adjustment
This color balance is same as the service color balance target in
the copy color balance adjustment (SIM 46-24). When, therefore,
the service color balance target is changed, this target is also
changed accordingly.
(Meaning of the service color balance target gamma data and
the purpose of registration)
This procedure must be executed only when the color balance is
customized with SIM 46-21.
If the color balance is not customized, this procedure is not
required.
After completion of the customized color balance adjustment (Man-
ual) with SIM 46-21 according to the users request, use SIM 63-7
to register the service color balance target data by use of the
printed adjustment pattern.
By this procedure, the service color balance target is revised.
It is recommendable to keep the printed adjustment pattern with
SIM 46-21. This adjustment pattern can be used to register the
same color balance target to another machine.
It is also useful to register the service color balance target data.
Do not fold it and keep it under the circumstances which protect it
from discoloration and dirt.
The service color balance target data are basically registered
immediately after the color balance adjustment (Manual) with SIM
46-21.If a considerable time has passed after completion of the color bal-
ance adjustment (Manual) with SIM 46-21, the color balance of the
adjustment pattern at the time of adjustment differs from the color
balance of the adjustment pattern printed after a considerable time.
Never use such a pattern for the adjustment.
The correctness of the service color balance target data can be
judges as follows.
Select the service color balance target with SIM 46-24 and execute
the color valance adjustment (Auto), and check the adjustment
result. When the result is unsatisfactory or abnormal, the registered
service target data for the color balance adjustment (Auto) may be
improper.
This may be caused when an improper or abnormal color balance
adjustment pattern was used to register the service color balance
target data for the color balance adjustment with SIM 63-7.
The color balance adjustment pattern used in registration was
made and printed by the color balance adjustment (Manual) with
SIM 46-21. This procedure may have been executed erroneously.
b. Setting procedure 
(Setting procedure of an optional color balance (gamma) as
the service color balance target)
1) Use SIM 46-21 (Copy color balance adjustment (manual
adjustment) mode) to print two sheets of the color patch image
(adjustment pattern).
If the color balance is shifted from the standard, an adjustment
is required. If not, an adjustment is not required. When an
optional color balance is requested by the user, make an
adjustment.
Fig. 6 L*a*b* table color system
chromaticity diagram
(hue and chrome)+b* Direction of Yellow
+a*
Direction
of RedDirection
of Green
Direction of Blue
Factory color balance target (DEF2) =
Service color balance target/Color balance
target for the user color balance adjustment
Factory color
balance target
(DEF1)
SIM63-8
SIM63-8
Factory color balance target
(DEF1) = Service color balance
target/Color balance target for the
user color balance adjustment
DEF1
DEF2Color balance with emphasis on color
reproduction (factory setting)
Color balance with slightly strong Cyan
DEF3 Color balance with emphasis on CyanDefaultHue
Factory color balance target (DEF3)
SIM63-8
Factory color balance target (DEF3) =
Service color balance target/Color balance
target for the user color balance adjustment
Factory color balance target (DEF2) 
						

							MX-2300/2700 N/G  ADJUSTMENTS  6 – 41 2) Enter the SIM 63-7 mode.
3) Press [SETUP] key.
4) Set the color patch image (adjustment pattern) correctly
adjusted and printed in the copy color balance adjustment
(Manual adjustment) (SIM 46-21) (ADJ 20C) on the document
table.
The color patch image (adjustment pattern) printed with SIM
64-2 can be used instead. In this case, however, check that the
printed pattern is normal.
(When the color patch image (adjustment pattern) is printed by
SIM 64-2, set the item B (PROC ADJ) to 0 (YES) and press
[EXECUTE] key to print.)
A color patch image (adjustment pattern) printed by another
machine can be used.
Set the pattern so that the light density side is on the left side.
Place 5 sheets of white paper on the color patch image
(adjustment pattern).
If the color balance could not be adjusted satisfactorily with
SIM 46-21 (Color balance adjustment (Manual)), do not exe-
cute SIM 63-7 to register the service color balance target data.
5) Press [EXECUTE] key.
The color patch image (adjustment pattern) is read.
6) Press [REPEAT] key, set the second color patch image
(adjustment pattern), and execute the procedure 5) again.
The color balance (gamma) target set level of each color
(KCMY) can be checked with K/C/M/Y keys. 
Check that the set level is increased in the sequence of B – O.
If there is no variation or variation is reversed, it is judged as
abnormal.
In case of an abnormality, settle the problem and try again.
7) Press [OK] key.
The color balance (gamma) of the color patch image (adjust-
ment pattern) used in the procedure 5) is set as the service tar-
get.(Procedures to set the service color balance target and the
color balance target for the user color balance adjustment to
the same color balance as the factory color balance target)
This procedure must not be executed when the copy color balance
was adjusted with SIM 46-21 to a unique color balance requested
by the user and it was registered as the service color balance tar-
get with SIM 63-7.
* When the factory color balance target is changed with SIM 63-11,
be sure to execute this procedure.
1) Enter the SIM 63-8 mode.
2) Press [EXECUTE] key.
3) Press [YES] key.
The service color balance target and the color balance target for
the user color balance adjustment are set to the same color bal-
ance as the factory color balance target.
 20-D Copy density adjustment (Each color copy
mode) (Whole adjustment) (Normally
unnecessary to adjust)
This adjustment is required in the following cases.
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
The density is adjusted in each copy mode individually. Normally
individual adjustments are not required. When there is a request
from the user, execute this adjustment.
1) Enter the SIM 46-1 mode.
KCMYSETUP
SIMULATIONNO.63-07TESTSCANNER TARGET OF COLOR CALIB SETUP:SERVICE
#B: 91, #C 2944, #D: 3227, #E: 5822, #F: 8600
#G: 28935, #H: 54344, #I: 86968, #J: 122678, #K: 151198
#L: 169731, #M: 195950, #N: 201249, #:O: 207112
1/1
0CLOSE
SIMULATIONNO. 63-07TESTSCANNER TARGET OF PRINTER COLOR CALIB SETUP9æSERVICE
EXECUTE
0CLOSE
SET THE CHART ON PLATEN AND TOUCH [EXECUTE].
SIMULATIONNO. 63-07TESTSCANNER TARGET OF PRINTER COLOR CALIB SETUP9æSERVICE
EXECUTE
0CLOSE
NOW CHART PATCH READING...
0SIMULATIONNO.639Ù08TESTSTANDARD SCANNER TARGET SETTING:SERVICE
CLOSE
EXECUTEARE YOU SURE?YESNO
OK
A:A9æxx
B9æxx
C9æxx
D9æxx9çAUTO
9çTE X T
9çTE X T/PR IN TE D PH OTO
9çTE X T/PH OTO
SI MU LA TI O NNO.46-01
E XP O S U RE AD J US T M E NT ( C O LO R) [ CO P Y]
xx
199
OK
TESTCLOSE0
CLOSE
A:A9æxx
B9æxx
C9æxx
D9æxx9çAUTO
9çTE X T
9çTE X T/PR IN TE D PH OTO
9çTE X T/PH OTO
SI MU LA TI O NNO.46-01
E XP O S U RE AD J US T M E NT ( C O LO R) [ CO P Y]
xx
199
OK
TESTCLOSE0
10-key 
						

							MX-2300/2700 N/G  ADJUSTMENTS  6 – 42 2) Select the copy mode to be adjusted with the scroll key.
3) Enter the adjustment value with 10-key and press [OK] key.
4) Press [CLOSE] key in this simulation mode to jump to the nor-
mal copy mode. Make a copy and check the adjustment result.
Switch the simulation mode and the normal copy mode alter-
nately, and adjust and check the adjustment result.
Repeat switching the adjustment mode (SIM 46-1) and the
normal copy mode and changing the adjustment value and
checking the adjustment result until a satisfactory result is
obtained.
To increase the density, increase the adjustment value. To
decrease the density, decrease the adjustment value.
 20-E Copy density adjustment (each mono-
chrome copy mode) (Whole adjustment)
(Normally unnecessary to adjust)
This adjustment is required in the following cases.
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
The density is adjusted in each copy mode individually. Normally
individual adjustments are not required. This adjustment is exe-
cuted when there is a request from the user.1) Enter the SIM 46-2 mode.
2) Select the copy mode to be adjusted with the scroll key.
3) Enter the adjustment value with 10-key and press [OK] key.
4) Press [CLOSE] key in this simulation mode to jump to the nor-
mal copy mode. Make a copy and check the adjustment result.
Switch the simulation mode and the normal copy mode alter-
nately, and adjust and check the adjustment result.
Repeat switching the adjustment mode (SIM 46-1) and the
normal copy mode and changing the adjustment value and
checking the adjustment result until a satisfactory result is
obtained.
To increase the density, increase the adjustment value. To
decrease the density, decrease the adjustment value. 20-F Copy color balance adjustment (Color bal-
ance adjustment at each density level in
each color copy mode) (Normally not
required)
This adjustment is required in the following cases.
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
This is to adjust the color balance at each density level in each
color copy mode.
Display/Item (Copy mode)Adjustment 
value rangeDefault 
value
A AUTO Auto 1 – 99 50
B TEXT Text 1 – 99 50
C TEXT/PRINTED 
PHOTOText/Printed Photo 1 – 99 50
D TEXT/PHOTO Text/Photograph 1 – 99 50
E PRINTED PHOTO Printed Photo 1 – 99 50
F PHOTOGRAPH Photograph 1 – 99 50
G MAP Map 1 – 99 50
H LIGHT Light document 1 – 99 50
I TEXT (COPY TO 
COPY)Text (Copy 
document)1 – 99 50
J TEXT/PRINTED 
PHOTO (COPY TO 
COPY)Text/Printed Photo 
(Copy document)1 – 99 50
K PRINTED PHOTO 
(COPY TO COPY)Printed Photo 
(Copy document)1 – 99 50
LTEXT (COLOR 
TONE 
ENHANCEMENT)Text (Color tone 
enhancement)1 – 99 50
M TEXT/PRINTED 
PHOTO (COLOR 
TONE 
ENHANCEMENT)Text/Printed Photo 
(Color tone 
enhancement)1 – 99 50
N TEXT/PHOTO 
(COLOR TONE 
ENHANCEMENT)Text/Photograph 
(Color tone 
enhancement)1 – 99 50
O PRINTED PHOTO 
(COLOR TONE 
ENHANCEMENT)Printed Photo 
(Color tone 
enhancement)1 – 99 50
P PHOTOGRAPH 
(COLOR TONE 
ENHANCEMENT)Photograph (Color 
tone enhancement)1 – 99 50
Q MAP (COLOR TONE 
ENHANCEMENT)Map (Color tone 
enhancement)1 – 99 50
R SINGLE COLOR Single color 1 – 99 50
S SINGLE COLOR 
(COPY TO COPY)Single color (Copy 
document)1 – 99 50
T TWO COLOR Two-color  (Red/
Black) copy 1 – 99 50
U TWO COLOR 
(COPY TO COPY)Two-color (Red/
Black) copy (Copy 
document)1 – 99 50
Display/Item (Copy mode)Adjustment 
value rangeDefault 
value
A AUTO1 Auto 1 1 – 99 50
B AUTO2 Auto 2 1 – 99 50
C TEXT Text 1 – 99 50
D TEXT/PRINTED 
PHOTOText/Printed Photo 1 – 99 50
E TEXT/PHOTO Text/Photograph 1 – 99 50
F PRINTED PHOTO Printed Photo 1 – 99 50
G PHOTOGRAPH Photograph 1 – 99 50
H MAP Map 1 – 99 50
I TEXT (COPY TO 
COPY)Text (Copy 
document)1 – 99 50
J TEXT/PRINTED 
PHOTO (COPY TO 
COPY)Test/Printed Photo 
(Copy document)1 – 99 50
K PRINTED PHOTO 
(COPY TO COPY)Printed Photo 
(Copy document)1 – 99 50
L LIGHT Light density 
document1 – 99 50
OK
E
A:A9æxx
B9æxx
C9æxx
D9æxx9çAUTO1
9çAUTO2
9çTEXT
9çTEXT/PRINTED PHOTO
SIMULATIONNO.46-02
EXPOSURE ADJUSTMENT(B/W)[COPY]
xx
199
OK
TESTCLOSE0
CLOSE
A:A9æxx
B9æxx
C9æxx
D9æxx9çAUTO1
9çAUTO2
9çTEXT
9çTEXT/PRINTED PHOTO
SIMULATIONNO.46-02
EXPOSURE ADJUSTMENT(B/W)[COPY]
xx
:1:*99:	
OK
TESTCLOSE0
10-key 
						

							MX-2300/2700 N/G  ADJUSTMENTS  6 – 43 Normally individual adjustments are not required. This adjustment
is executed when there is a request from the user.
1) Enter the SIM 46-10 mode.
2) Select the copy mode to be adjusted with the mode key.
3) Select a color to change the adjustment value with the color
key.
4) Select the density level (point) to be adjusted with the scroll
key.5) Enter the adjustment value with 10-key and press [OK] key.
When the adjustment value is increased, the density is
increased. When the adjustment value is decreased, the den-
sity is decreased.
When the arrow key is pressed, the color densities selected
with the color keys are collectively adjusted. That is, all the
density levels (points) from the low density point to the high
density point can be adjusted collectively.
When [EXECUTE] key is pressed, the adjustment pattern is
printed out.
The color balance at each density level (point) and the density
can be checked by referring to this printed adjustment pattern.
However, it is more practically to make a cop and check it.
 20-G Monochrome copy density adjustment
(Density adjustment at each density level in
each monochrome copy mode) (Normally
not required)
This adjustment is required in the following cases.
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
This is to adjust each density level in each monochrome copy
mode.
Normally individual adjustments are not required. This adjustment
is executed when there is a request from the user.
1) Enter the SIM 46-16 mode.
2) Select the density level (point) to be adjusted with the scroll
key.
3) Enter the adjustment value with 10-key and press [OK] key.
When the adjustment value is increased, the density is
increased. When the adjustment value is decreased, the den-
sity is decreased.
When the arrow key is pressed, the selected are collectively
adjusted. That is, all the density levels (points) from the low
density point to the high density point can be adjusted collec-
tively.
When [EXECUTE] key is pressed, the adjustment pattern is
printed out.
The density at each density level (point) can be checked by
referring to this printed adjustment pattern. However, it is more
practically to make a cop and check it.
Item/DisplayDensity level 
(Point)Adjustment 
value rangeDefault value
A POINT1 Point 1 245 – 755 500
B POINT2 Point 2 245 – 755 500
C POINT3 Point 3 245 – 755 500
D POINT4 Point 4 245 – 755 500
E POINT5 Point 5 245 – 755 500
F POINT6 Point 6 245 – 755 500
G POINT7 Point 7 245 – 755 500
H POINT8 Point 8 245 – 755 500
I POINT9 Point 9 245 – 755 500
J POINT10 Point 10 245 – 755 500
K POINT11 Point 11 245 – 755 500
L POINT12 Point 12 245 – 755 500
M POINT13 Point 13 245 – 755 500
N POINT14 Point 14 245 – 755 500
O POINT15 Point 15 245 – 755 500
OK
EXECUTE
C
EXECUTE
SIMULATIONNO.46-10TESTENGINE COLOR BALANCE MANUAL ADJUSTMENT
1/1
0
TEXTTEXT / PRTPHOTOPRINTED PHOTOPHOTO+TEXT/PHOTO
CLOSE
MAPLIGHTCOPY ORG
A:A9æxxx
B9æxxx
C9æxxx
D9æxxx9çPOINT 1
9çPOINT 2
9çPOINT 3
9çPOINT 4
SIMULATIONNO. 46-10
ENGINE COLOR BALANCE MANUAL ADJUSTMENT [TXST]
xxx
245755
OK
TEST
KCMY
0
EXECUTE
CLOSE
A:A9æxxx
B9æxxx
C9æxxx
D9æxxx9çPOINT 1
9çPOINT 2
9çPOINT 3
9çPOINT 4
SIMULATIONNO. 46-10
ENGINE COLOR BALANCE MANUAL ADJUSTMENT [TXST]
xxx
245755
OK
TEST
KCMY
0
EXECUTE
CLOSE
A:A9æxxx
B9æxxx
C9æxxx
D9æxxx9çPOINT 1
9çPOINT 2
9çPOINT 3
9çPOINT 4
SIMULATIONNO. 46-10
ENGINE COLOR BALANCE MANUAL ADJUSTMENT [TXST]
xxx
:245:*755:	
OK
TEST
KCMY
0
EXECUTE
CLOSE
TEXT
10-key
orendofprint
[SYSTEM
SETTINGS]
key
EXECUTE
EXECUTE
A:A9æxxx
B9æxxxC9æxxxD9æxxx
9çPOINT1
9çPOINT2
9çPOINT3
9çPOINT4
SIMULATIONNO.46-16
ENGINE COLOR BALANCE MANUAL ADJUSTMENT [ALL(B/W)]:PG
xxx
373627
OK
TEST
0
EXECUTE
CLOSE
A:A9æxxx
B9æxxxC9æxxxD9æxxx
9çPOINT1
9çPOINT2
9çPOINT3
9çPOINT4
SIMULATIONNO.46-16
ENGINE COLOR BALANCE MANUAL ADJUSTMENT [ALL(B/W)]:PG
xxx
373627
OK
TEST
0
EXECUTE
CLOSE
10-key
or self print end 
						

							MX-2300/2700 N/G  ADJUSTMENTS  6 – 44
 20-H Gamma/density adjustment in the text
image edge section (Normally not required)
This adjustment is used to change the reproduction level of text
and outline to an optional level by changing the gamma and the
density at the edge section of text image. The thickness of fine text
and fine lines is changed by this adjustment.
The adjustment result must be checked in the Text/Printed Photo
copy mode (Manual).
This adjustment is enabled only in the Text mode, the Text/Printed
Photo mode, and the Text/Photograph copy mode.
When the default adjustment value is changed, this adjustment is
required in the following cases.
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
1) Enter the SIM 46-27 mode.
2) Select an adjustment item with the scroll key.3) Enter the adjustment value with 10-key.
When the adjustment value of item A, C, or E is changed, the
gamma at the edge area of text and lines is changed.
When the adjustment value is increased, the image contrast at
the edge area of text and lines is increased. When the adjust-
ment value is decreased, the contrast is decreased.
When the adjustment value of item B, D, or F is increased, the
image density at the edge area of text and lines is increased.
When the value is decreased, the density is decreased.
4) Press [OK] key.
5) Press [CLOSE] key to exit from the simulation.
6) Make a copy in the TEXT/Printed Photo copy mode (Manual),
and check the copy.
Use a document with fine text and line images for copying and
checking.
If a satisfactory result is not obtained, return to the SIM 46-27
mode and change the adjustment value.
Repeat the above procedures until a satisfactory result is
obtained.
 20-I Copy color balance adjustment (Single
color copy mode) (Normally not required)
This adjustment is used to set the color balance and the density in
the single color copy mode to the users request.
The adjustment is made by changing YMC components of each
color.
This adjustment is not required normally, but executed when there
is a request from the user.
When the default adjustment value is changed, this adjustment is
required in the following cases.
* When the CCD unit is replaced.
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
a. Adjustment procedures
1) Enter the SIM 46-25 mode.
2) Select the color to be adjusted with the scroll key.
3) Select the color (YMC) to be adjusted with the color key.
Display/Item 
(Copy mode)ContentAdjustment 
rangeDefault 
value
ABLACK TEXT 
(SLOPE)Black text edge area 
engine γ curve calculation 
coefficient (slope) setting1 – 99 50
BBLACK TEXT 
(INTERCEPT)Black text edge area 
engine γ curve calculation 
coefficient (density) setting1 – 99 50
C COLOR TEXT 
(SLOPE)Color text edge area 
engine γ curve calculation 
coefficient (slope) setting1 – 99 50
D COLOR TEXT 
(INTERCEPT)Color text edge area 
engine γ curve calculation 
coefficient (density) setting1 – 99 50
EED TEXT 
(SLOPE)Error diffusion edge area 
engine γ curve calculation 
coefficient (slope) setting1 – 99 50
FED TEXT 
(INTERCEPT)Error diffusion edge area 
engine γ curve calculation 
coefficient (density) setting1 – 99 50
OK
CLOSE0
A:
A9æxx
B9æxx
C9æxx
D9æxx9çBLACK TEXT (SLOPE)
9çBLACK TEXT (INTERCEPTE)
9çCOLOR TEXT (SLOPE)
9çCOLOR TEXT(INTERCEPTE)
SIMULATIONNO.46-27
COEFFICIENT OF GAMMA SETUP
xx
199
OK
TEST
0
A:
A9æxx
B9æxx
C9æxx
D9æxx9çBLACK TEXT (SLOPE)
9çBLACK TEXT (INTERCEPTE)
9çCOLOR TEXT (SLOPE)
9çCOLOR TEXT(INTERCEPTE)
SIMULATIONNO.46-27
COEFFICIENT OF GAMMA SETUP
xx
199
OK
TESTCLOSE
10-key
OK
0CLOSE
A:
A9æxxx
B9æxxx
C9æxxx
D9æxxx9çRED
9çGREEN
9çBLUE
9ç
YELLO W
SIMULATIONNO.46-25
SINGLE COLOR MODE COLOR BALANCE SETUP
xxx
0255
KMYOK
TEST
C
0CLOSE
A:
A9æxxx
B9æxxx
C9æxxx
D9æxxx9çRED
9çGREEN
9çBLUE
9ç
YELLO W
SIMULATIONNO.46-25
SINGLE COLOR MODE COLOR BALANCE SETUP
xxx
0255
KMYOK
TEST
C
10-key 
						

							MX-2300/2700 N/G  ADJUSTMENTS  6 – 45 4) Enter the adjustment value with 10-key.
5) Press [OK] key.
6) Press [CLOSE] key to exit from the simulation.
7) Make a copy in the single color copy mode and check the
copy.
If a satisfactory result is not obtained, return to the SIM 46-25 mode
and change the adjustment value. Repeat the above procedures
until a satisfactory result is obtained.
 20-J Auto color balance adjustment by the user
(Copy color balance auto adjustment
enable setting and adjustment)
a. General
In the user program mode, the user can execute the auto color cal-
ibration (auto adjustment of the copy color balance and density).
This adjustment is to set Enable/Disable of the above user opera-
tion with SIM 26-53.
NOTE: This setting must be set to ENABLE only when the users
understanding on the automatic adjustment of the copy
color balance and density and the users operational ability
are judged enough to execute the adjustment.
When set to ENABLE, give enough explanations on the
operating procedures, notes, and operations to the user.
This adjustment is required in the following cases.
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the PCU PWB is replaced.
* When the EEPROM on the PCU PWB is replaced.
b. Setting procedure
1) Enter the SIM 26-53 mode.2) Select ENABLE or DISABLE with 10-key.
When disabling, set to 0 (NO).
When enabling, set to 1 (Yes).
3) Press [OK] key.
When set to DISABLE, the menu of the user auto color calibra-
tion (automatic adjustment of copy color balance and density)
is not displayed in the user program mode.
(Auto color calibration by the user (Auto color balance adjust-
ment))
Remark: This adjustment is based on the service target color bal-
ance set with SIM 63-7 and SIM 63-8. If, therefore, the above set-
tings are not properly performed, this adjustment cannot be made
properly.
1) Enter the system setting mode.
2) Enter the copy setting mode.
3) Press the auto color calibration key.
4) Press [EXECUTE] key.
The color patch image (adjustment pattern) is printed out.
5) Set the color patch image (adjustment pattern) printed in pro-
cedure 4) on the document table. Set the patch image so that
the light density area is on the left side.
At that time, place 5 sheets of white paper on the above color
patch image (adjustment pattern).
6) Press [EXECUTE] key, and the copy color balance adjustment
is executed automatically. After completion of the adjustment,
the display returns to the original operation screen.
 20-K Background process condition setting in
the color auto copy mode
When the adjustment value is changed from the default adjustment
value, this adjustment is required in the following cases.
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the user request for the adjustment.
This adjustment is used to set the condition for inhibiting copy of
the background depending on the document image kind and state.
The setting is applied to the color auto copy mode.
Display/ItemAdjustment 
valueDefault value
CMY
A RED 0 – 255 0 255 255
B GREEN 0 – 255 255 0 255
C BLUE 0 – 255 255 255 0
D YELLOW 0 – 255 0 0 255
E MAGENTA 0 – 255 0 255 0
F CYAN 0 – 255 255 0 0
OK
0
A:
A9æx
9ç(1:YES 0:NO)
SIMULATIONNO.26-53
DISABLING OF AUTOMATIC COLOR CALIBRATION
x
01
OK
TESTCLOSE
0
A:
A9æx
9ç(1:YES 0:NO)
SIMULATIONNO.26-53
DISABLING OF AUTOMATIC COLOR CALIBRATION
x
01
OK
TESTCLOSE
10-key
Black Yellow
Red
Blue 
						

							MX-2300/2700 N/G  ADJUSTMENTS  6 – 46 1) Enter the SIM 46-33 mode.
2) Select COLOR AE mode with [NEXT] and [BACK] key.
3) Select the setting mode with the scroll key.Set item A (SW MODE1) – G (SW MODE7):
Used to set Enable/Disable of the background delete function
for various kinds of documents.
When the value of the set item corresponding to the document
kind is set to 1, the background delete function of the docu-
ment kind is enabled.
To reproduce the document colors directly, set this setting to
OFF (0).
After entering the set value, press [OK] key to save the entered
value to the memory.
Set item H (TH_MAX_MONO):
Used to set the density level at which the background delete
function is enabled for monochrome background documents.
Set to the range of 0 – 16.
To delete the background of light-density documents: Increase
the set value.
To delete the background of dark-density documents:
Decrease the set value.
After entering the set value, press [OK] key to save the set
value to the memory.
Set item I (TH_MAX_COLOR):
Used to set the density level at which the background delete
function is enabled for color background documents.
Set to the range of 0 – 16.
To delete the background of light-density documents: Increase
the set value.
To delete the background of dark-density documents:
Decrease the set value.
After entering the set value, press [OK] key to save the set
value to the memory.
Set item J (SW_NEWS):
Used to set Enable/Disable of the newspaper (monochrome)
background delete function.
It is not affected by the set item H.
For newspapers of color background, this setting is invalid.
After entering the set value, press [OK] key to save the set
value to the memory.
Set item A (TH_MODE_SCR):
Used to set the mesh are level at which the background delete
function is enabled for printed documents with mesh images.
To delete background of documents with much mesh area:
Increase the set value.
To delete background of documents with less mesh area:
Decrease the set value.
Select TH_MODE_SCR, enter the set value, and press [SET]
key to save the entered value to the memory.
(NOTE)
Enable/Disable of the background delete operation is determined
by AND condition of A (SW MODE1) – G (SW MODE7), H (TH_
MAX_MONO), I (TH_MAX_COLOR), and A (TH_MODE_SCR). 
For newspapers documents, however, it is determined by the set
item J (SW_NEWS) only.
Except for the above set items, do not change the setting in the
market. Set them to the default values.
Display/Item ContentAdjustment 
rangeDefault 
value
COLOR 
AEASW_
MODE1ON Auto mode: Text 
document 
background 
detection0 – 1 1
OFF
BSW_
MODE2ON Auto mode: Text 
mesh document 
background 
detection0 – 1 1
OFF
CSW_
MODE3ON Auto mode: Text-
on-mesh 
document 
background 
detection0 – 1 1
OFF
DSW_
MODE4ON Auto mode: Mesh 
document 
background 
detection0 – 1 0
OFF
ESW_
MODE5ON Auto mode: Photo 
document 
background 
detection0 – 1 0
OFF
FSW_
MODE6ON Auto mode: text 
document 
background 
detection0 – 1 0
OFF
GSW_
MODE7ON Auto mode: Other 
document 
background 
detection 0 – 1 0
OFF
H TH_MAX_
MONOMonochrome 
background 
detection threshold 
value0 – 32 15
I TH_MAX_
COLORColor background 
detection threshold 
value0 – 32 15
J SW_NEWS Newspaper 
background 
forcible delete 
switch0 – 1 0
KSW_MODE_
SCR1Mesh area 
background 
judgment switch1 – 3 3
LSW_MODE_
SCR2Mesh area 
background delete 
select switch 0 – 1 0
MSW_MODE_
MIXAuto other 
document 
background 
detection switch1 – 2 2
N SW_HOSEI Correction table 
correction0 – 8
(–4 – +4)4
A TH_MODE_
SCRMesh ratio 
threshold value0 – 10000 3000
B TH_SITAJI_
SCRBackground mesh 
threshold value0 – 10000 3000
0
A:AxAUTO
BxEXPOSURE1
SIMULATION NO.46-43
EXPOSURE ADJUSTMENT(FAX : SUPER FINE)
x
11
OK
TEST
EXECUTE
CLOSE
Cx
Dx
EXPOSURE2
EXPOSURE3