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AR-C260/C260M  SETTING AND ADJUSTMENTS  8 - 25

Perform ADJ 11B copy color
balance/density auto adjustment.
(SIM 46-24)

Can the

copy color balance and

density be adjusted to satisfactory

levels with the fine

adjustment?

Is the color balance/

density adjustment performed

for each copy mode ? (Does

the user request that ?)

YES

YES

NO

NO

Perform the manual adjustment of

ADJ 11C copy color balance, density

adjustment. (SIM 46-21)

Are the copy

color balance and density

at satisfactory

levels?

Were the 

copy color balance and

density customized?

YES

YES

NO

NO

Perform the copy color

balance/density

adjustment for each copy

mode separately.

(SIM 46-10 – 16)

Check the copy color balance and the density. 

(Check in the manual Text/Printed photo mode.)

(Use the test chart UKOG-0283FCZZ.)

END

Enter the SIM 46-24 mode 

and select C:A3 (11 x 17) paper.

(Auto selection)

Press the EXECUTE key. (The

adjustment pattern 1 is printed.)

Set the adjustment pattern 1

on the original table, select

the FACTORY mode, and

press the EXECUTE key.

(Auto adjustment step 1)     

*

1

Press the OK key. (The initial

setup of half tone image correction

is automatically performed.)

Are the

copy color balance

and density at the

satisfactory

levels?

YES

NO

Cancel SIM 46-24.

Auto color balance adjustment

service target is set. (SIM 63-7)

Enter the SIM 63-7 mode.

Press the SETUP key.

Set the color patch image (adjustment
pattern) printed in the copy color balance/
density adjustment on the original table,
and press the EXECUTE key.

Press the REPEAT key.

Press the EXECUTE key.

Press the OK key.

Cancel SIM 63-7.

Perform the initial setup of half tone

image correction. (SIM 44-21)

Execute the half tone image

correction.  (Forcible execution)

(SIM 44-26)

Are the copy color

balance and the density

in the specified level ?

YES

NO

Check the copy color balance and density. 

(Manual operation) Check in the Text/Printed photo mode.

(Use the test chart UKOG-0283FCZZ.)

Perform the initial setup of half tone

image correction. (SIM 44-21)

Execute the half tone image correction.

 (Forcible execution) (SIM 44-26)

Perform ADJ 11F

CCD gamma adjustment 

(copy document mode). (SIM 63-9)

Set the copy of the SIT chart
on the document table.

Enter the SIM 63-9 mode,
and press the [EXECUTE] key.

Make a copy of the SIT chart
(UKOG-0280FCZZ) in the
manual Photo mode.

*2
The number 
of times is 
limited to 
3 times

1

*2
The number 
of times is 
limited to 
3 times

Use SIM 46-21 to
print the color
balance check
sheet, and check
the patch color
balance of process
black. 

*1:  When adjusting to a customized color balance,

select the SERVICE mode. 

*2:  If a satisfactory result in the copy color balance 

or the density cannot be obtained by repetition
of this loop of procedures 3 times or more, there
may be a problem in the machine conditions.  
Check the cause, repair the trouble section,  
and execute all the adjustment from the beginning 
again. 

(Back page)

(Back page)

: Standard adjustment flow

Were the 

copy color balance and

density customized?

NO

YES

1

AR-C260/C260M  SETTING AND ADJUSTMENTS  8 - 26

Check the color balance and the density by making copies of Sharp
gray chart and the serviceman chart.

To check the copy color balance and density, use the Sharp gray chart
and the serviceman chart. In the (Manual) Text/Printed photo mode,
set the copy density level to 3, and make a color copy and a B/W copy.

At that time, all the color balance adjustments of the user adjustment
mode must be set to the default (center).

Be sure to use the specified paper for color.

The copy image density of Sharp gray chart must be as follows:

Note: Use the color test chart (UKOG-0283FCZZ) to check the color

balance.

(Color copy)

(Black-and-white copy)

Check the color balance of Serviceman chart copy is as shown below.

(Color copy)

This adjustment must be performed in the following cases:

• When the CCD unit is replaced.

• When a U2 trouble occurs.

• When the MFP PWB is replaced.

• When the EEPROM of the MFP PWB is replaced.

• When replacing a part in the scanner (reading) section.

When the CCD unit is replaced, be sure to perform this adjustment.

1) Check that the table glass and No. 1, 2, 3 mirrors and lenses are

free from dust and dirt. (If there is dust and dirt, clean with alcohol.)

2) Check that there is no dirt or scratch on BK1 and BK2 patches of

SIT chart (UKOG-0280FCZZ).

If there is dirt, clean with alcohol.

If there is scratch, replace the chart with new one.

1) Set the SIT chart (UKOG-0280FCZZ) to the left edge of the original

table, and fit the center of SIT chart with the center of the glass
holder.

When SIT chart is not available, execute SIM 63-5 to set the CCD
gamma to the default. This method, however, provides a lower adjust-
ment accuracy than the method by using SIT chart.

Note: Check that the SIT chart (UKOG-0280FCZZ) is closely placed

on the original table.

2) With the SIT chart (UKOG-0280FCZZ) fixed, close the original

cover.

3) Enter the SIM 63-03 mode, and press the [EXECUTE] key.

The automatic adjustment is started. During the automatic adjust-
ment, the [EXECUTE] key is highlighted. When the adjustment is
completed, the key returns to the normal display.

Note: The SIT chart (UKOG-0280FCZZ) is affected by light (especially

by ultraviolet rays) and temperature and humidity. Put it in a bag
(clear file, etc.) and store in a dark place.

This adjustment must be performed in the following cases:

• When a consumable part (developer, OPC drum, the transfer belt) is

replaced.

• When the CCD unit is replaced.

• When a U2 trouble occurs.

• When the MFP PWB is replaced.

• When the EEPROM of the MFP PWB is replaced.

The color balance adjustment (auto adjustment) is the automatic
adjustment of cyan, magenta, yellow, and black copy density with SIM
46-24.

(When this adjustment is performed, the color balance adjustments in
all the copy modes are renewed.)

1) The print engine section must be properly adjusted.

2) CCD gamma adjustment must be properly adjusted.

3) When setting the color patch image (adjustment pattern) paper on

the original table, place 5 sheets of white paper on the color patch
image paper.

4) Be sure to use the specified color paper.

1

2

3

4

5

6

7

8

9

10

W

SHARP gray chart

Patch 1 is slightly copied.

1

2

3

4

5

6

7

8

9

10

W

SHARP gray chart

Patch 1 is not copied.

Patch 2 is slightly copied.

Patch 3 is copied.

Serviceman chart (Color patch section)

The background may
be slightly copied.

No great difference with
the original (Whole copy
of the patch section)

Patch 7 and the following must be copied.
Density balance of each color must be proper.

AR-C260/C260M  SETTING AND ADJUSTMENTS  8 - 27

Before execution of the copy quality check and the copy quality adjust-
ment, be sure to execute the following corrections forcibly to set the
image forming section to the optimum state.

• Execute the process correction forcibly. (SIM 44-6)

• Execute the half-tone image correction forcibly. (SIM 44-26)

The color balance adjustment (auto adjustment) is the automatic
adjustment of cyan, magenta, yellow, and black copy density with SIM
46-24 or user program.

There are following two modes of auto color balance adjustment:

1) Auto color balance adjustment by the serviceman (with SIM 46-24)

2) Auto color balance adjustment by the user (with the user program)

(The color balance target becomes the service target.)

The auto color balance adjustment by the user is provided in order
to reduce the number of service calls.

If the copy color balance is shifted by some reason, the user per-
forms the color balance adjustment to correct it.

If, however, there is a basic problem in the machine, or if the
machine environment is changed largely, this function does not
serve as an effective means.

While the automatic color balance adjustment by the serviceman
allows adjustment even when the machine environment is
changed largely, providing normal color balance. If there is a basic
problem in the machine, repair it and adjust to provide normal color
balance.

The above points must be fully understood for proper operation.

When this adjustment is performed, the color balance adjustment
of all the copy modes are changed.

1) Enter the SIM 46-24 mode.

2) Press the [EXECUTE] key.

(A3 or 11 x 17 paper is automatically selected.)

The color patch image (adjustment pattern) is printed.

3) Set the color patch image (adjustment pattern) printed in proce-

dure 2) on the original table so that the dark density side of the
color patch image comes to the left side. Place 5 sheets of white
paper on the color patch image (adjustment pattern) paper.

4) Press the FACTORY key on the operation panel and press the

[EXECUTE] key.

The copy color balance adjustment (step 1) is automatically per-
formed, and the color balance check patch image is printed. Wait
for a while until the operation menu of procedure 5) is displayed.

When the color balance is customized by the manual color balance
(SIM 46-21) according to the user's request and then the color bal-
ance is registered as the service target by SIM 63-7, select the ser-
vice target in order to adjust to that color balance.

Note: (Descriptions on the factory and the service key button in the

color balance automatic adjustment menu)

There are two kinds of gamma targets for the color balance
automatic adjustment: factory and service.

The factory key button and the service key button are used to
select between them.

Factory target gamma: Standard color balance (Fixed)

Service target gamma: Color balance can be customized
according to the user request. (Variable)

When shipping from the factory, the service target gamma data
are same as the factory target gamma data.

Both are set to the standard color balance gamma.

In the service target, a customized color balance can be regis-
tered with SIM 63-7. In the factory target, it cannot be changed.

5) Press the OK key on the operation panel.

The initial setup of half tone image correction is performed accord-
ing to this adjustment data.

Note: When OK key is pressed, initial setup of half-tone image correc-

tion is started. During this operation, "Copy Quality is being
adjusted" is displayed. It takes several minutes to complete this
operation.

After completion of this operation, "Please quit this mode" is dis-
played.

Do not cancel the simulation until "Please quit this mode" is dis-
played.

6) Check that the color balance check patch image printed at last is

within the specified range shown below.

The print density should vary gradually from the lower density to the
higher density without reversion of changing direction.

The density level of each color should be almost the same.

It is acceptable for patch B not to be copied.

Patch A is not copied. 

Use SIM 46-21 to print the color balance adjustment sheet and com-
pare each process (CMY) black patch color balance and the black
patch. This allows a correct check on the color balance adjustment
result.

If the color balance of each process (CMY) black patch in A to O is
near the black patch referring to the patch, it is judged that the color
balance has been correctly adjusted.

High density

Low density

Fig. 1 PG image

Max

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

C

M

Y

Bk

1) The max. density
     section is not blurred.

3) Patch for each of C, M, Y, BK

• The patch density is identical between patches or not reversed.
• The patch density is changed gradually.

2) B – E patches of each color
    of Y, C, M, and Bk are copied
    very slightly.

Patch A of each Y/M/
C/K color is not copied.

AR-C260/C260M  SETTING AND ADJUSTMENTS  8 - 28

If, however, the user requests to customize the color balance instead
of using the standard color balance and the color balance is in a satis-
factory level, go to Step 10).

If the color balance is not satisfactory, perform the manual color bal-
ance adjustment (ADJ 11C).

7) Execute the half tone image correction. (Forcible execution) (SIM

44-26)

When [EXECUTE] key is pressed, it is highlighted and the operation is
started. It takes several minutes to complete the operation. When the
operation is completed, the screen returns to the original state.

After completion of the operation, cancel the simulation.

8) Use the test chart UKOG-0283FCZZ and check the copy color bal-

ance and the density in Text/Photo mode. (Refer to the section of
the copy color balance and the density.)

If the copy color balance and density are not in the satisfactory level,
perform the following procedures.

9) Perform initial setup of half tone image correction. (SIM 44-21)

10) Perform half tone image correction. (Forcible execution) (SIM 44-

26)

11) Use the test chart UKOG-0283FCZZ and check the copy color bal-

ance and the density in manual Text/Printed photo mode. (Refer to
the section of the copy color balance and the density.)

Repeat procedures 9) to 11) until they are at the satisfactory level.

However, repetition is limited to three times.

If a satisfactory result in the copy color balance or the density cannot
be obtained by repetition of the above procedures 3 times or more,
there may be a problem in some other sections.

Investigate the reason and repair or fix the problem, then perform all
the procedures of print quality adjustment from the beginning.

If a satisfactory result in the copy color balance or the density cannot
be obtained by the automatic adjustment, use SIM46-21 (ADJ11C)
(automatic adjustment).

This adjustment must be performed in the following cases:

• When a consumable part (developer, OPC drum, the transfer belt) is

replaced.

• When the CCD unit is replaced.

• When the scanner (reading) section is cleaned.

• When a U2 trouble occurs. 

• When the MFP PWB is replaced.

• When the EEPROM of the MFP PWB is replaced.

The color balance adjustment (Manual) is used to manually adjust
each color copy density (C, Y, M, K) (15 points for each color) when
the result of the previous automatic adjustment is unsatisfactory or
when a fine adjustment is required, or when the user requests to
change (customize) the color balance.

This adjustment is performed only for the color patch whose result of
the previous automatic adjustment is unsatisfactory.

If the color balance is out of the normal conditions, execute SIM 46-24
to make the color balance adjustment (Auto) and then execute this
adjustment. This sequence leads to a better work efficiency.

Before execution of the copy quality check and the copy quality adjust-
ment, be sure to execute the following corrections forcibly to set the
image forming section to the optimum state.

∗

Execute the process correction forcibly. (SIM 44-6)

∗

Execute the half tone image correction forcibly. (SIM 44-26)

∗

Before executing the copy color balance adjustment (Manual), per-
form SIM 44-6 to make a compulsory process correction, updating
the developing bias voltage and the main charger voltage to the lat-
est levels.

When [EXECUTE] key is pressed, the operation is started.

It takes several minutes to complete the operation. When the operation
is completed, "COMPLETE" is highlighted.

After completion of the operation, cancel the simulation.

1) Enter the SIM 46-21 mode.

2) Select PAPER SEL with the scroll key and select A3 (11 x 17)

paper.

Enter the set value corresponding to the paper feed section with
A3 (11 x 17) paper in it, and press the OK key.

3) Press the [EXECUTE] key.

The color balance adjustment pattern is printed.

High density

Low density

Max

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

C

M

Y

Bk

CMY
mixed
color

1) The max. density section is not blurred.

5) The gray balance for CMY mixed
    color patch is not shifted so much.

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.

3) B – E patches of each color of Y, C,
    M, and Bk are copied very slightly.

2) Patch A of each Y/C/M/Bk
    color is not copied.

6) There is not so great difference between
    CMY mixed color and BK monochrome.

Normal completion

Abnormal completion
(Error color is displayed.)