Sharp AR-C260M Manuale utente

Page

COLOR ADJUSTMENT

USER'S GUIDE

Adjusting the Color Balance ..................................2

Color Adjustment Flow Chart ................................2

Printing a Test Page and Checking the Colors ....3

Printing a Test Page ..............................................3

Checking the Colors...............................................4

Using the Color Balance Settings .........................5

Using Easy Calibration ...........................................7

Adjusting the Color Balance

As the printer is used, ambient conditions and the depletion of consumables (the toner cartridge and drum

cartridge) can gradually cause changes to occur in the four color components of color images, cyan, ma-

genta, yellow, and black. This results in deviations in the color balance.

These deviations in the color balance occur gradually over a long period of time. Ambient conditions (tem-

perature and humidity) and the number of times the printer is used can have a large effect on color devia-

tion.

The printer has two color adjustment functions for the purpose of correcting deviations in the color balance.

These functions are executed from the key operator programs. For details on using key operator programs,

see the Key Operator’s Guide.

When should the color balance be adjusted?

•Color adjustment canbeperformed whenevera noticeable changeoccurs in the color balance.

•Color adjustmentshould always be performed when one of the toner cartridges (cyan,magenta, yellow,

or black) is replaced.

Color adjustment functions

The printer has the following two color adjustment functions:

• Color Balance settings

This function is used to adjust each of the density levels (low, mid, and high) ofthe four color components,

cyan, magenta, yellow and black. Use this mode when the color deviation is large.

• Easy calibration

This mode is used for fine adjustment of the gray balance at the mid density level of the colors cyan,

magenta, and yellow. Use this mode to correct minor color deviations.

Color Adjustment Flow Chart

Use the key operator program on page 3 of the Key Operator’s Guide to

print a test page

Do the colors on the test page match the colors on the standard color

chart included with the printer? (see page 4)

No Yes

How much do the colors differ?

Large difference Small difference

Using the Color Balance set-

tings (see page 5)

Using Easy Calibration

(see page 7)

Print a test page (see page 3)

Color balance is successfully adjusted

Printing a Test Page and Checking the Colors

Printing a Test Page

Follow these steps to print a test page from the operation panel.

1Enter the key operator programs.

To enter the key operator programs, see “Using

the key operator programs” on page 3 of the Key

Operator’s Guide.

2Touch the [PRINTER SETTINGS] key.

3Touch the [COLOR ADJUSTMENTS] key.

4Touch the [TEST PRINT] key.

5Load A4 or letter-size paper in the tray and

touch the [EXECUTE] key.

When the [EXECUTE] key is touched, "SELF

PRINT IN PROGRESS" appears in the display.

After a brief interval, a color test page will be

printed (see below).

Test Page (printed by printer)

The top line of the test page shows the four colors (cyan, magenta, yellow, and black) at low density, mid den-

sity, and high density. The bottom line shows processed gray* at low density, mid density, and high density.

*Processed gray is the color obtained when the cyan, magenta, and yellow colors on the top line are com-

bined together.

KEY OPERATOR

CODE CHANGE

PRINTER

SETTINGS

CCOUNT

ONTROL

SETTINGS

ST PRINT PRODUCT

N/W SCAN

SETTING

OPERATI

SETTIN

ENERGY SAVE

INTERFACE SETTINGS

COLOR ADJUSTMENTS

EASY CALIBRATION

TEST PRINT

EXECUTE

Low Density Mid Density High Density

C M Y Bk C M Y Bk C M Y Bk

Low Density Mid Density High Density

Checking the Colors

The standard color chart included with the printer is used to check the colors on the printed test page.

Follow the steps below to check the colors.

Low Density Mid Density High Density

CM YBk CM YBk CM YBk

Low Density Mid Density High Density

Place the color chart on

the printed test page as

shown. Check the den-

sity of the colors on the

test page and see if they

are adjusted to the same

level as the colors on the

standard color chart.

If the result of the comparison is that:

• There is a large deviation in the color densities, use the Color Balance settings (see

the following page).

• There is a small deviation in the color densities, use Easy Calibration (see page 7).

Test page (printed by the printer) Standard color chart (included with the printer)

Using the Color Balance Settings

The color chart included with the printer is used to adjust the Color Balance settings. Follow these steps to

adjust the settings using the operation panel.

NOTE: • Keep the Color Chart in the place near printer. Do not discard it.

•Do not expose the Color Chart to direct sunlight.

Color balance is the utility to set the print image to the recommended status. But if you do not feel the im-

age is distorted, you need not use color balance.

1Enter the key operator programs.

To enter the key operator programs, see “Using

the key operator programs” on page 3 of the Key

Operator’s Guide.

2Touch the [PRINTER SETTINGS] key.

3Touch the [COLOR ADJUSTMENTS] key.

4Touch the [COLOR BALANCE] key.

5Load A4 or letter-size paper in the tray and

touch the [EXECUTE] key.

When the [EXECUTE] key is touched, "SELF

PRINT IN PROGRESS" appears in the display.

After a brief interval, Test Pattern 1 will be printed

(see the following page).

6Place the color chart on Test Pattern 1, com-

pare the color densities, and then adjust the

color balance in the following screen.

For a detailed explanation of adjusting the color

balance, see “Adjusting the color balance” on

the following page.

How to use the keys in the screen:

: Use the and keys to select

the color (C,M,Y, or Bk) in “LOW

AREA”, “MIDDLE AREA” or “HIGH

AREA” that you wish to adjust.

: Use the and keys to select

the density level (+4 to -4) that

matches the density level in the stan-

dard color chart.

: Use the key to return all values

to the default settings.

+ALL : To adjust all values simultaneously,

select “ALL” with the key and

then adjust the values with the

and keys.

7Touch the [OK] key.

Your settings will be saved and you will return to

the Color Setting screen. Print a test page as

explained on page 3 and verify that the colors

match the colors in the standard color chart.

The processed gray on the bottom line of the test

page provides a good indicator of the color bal-

ance when performing fine adjustment of the

color densities.

KEY OPERATOR

CODE CHANGE

PRINTER

SETTINGS

CCOUNT

ONTROL

SETTINGS

T PRINT PRODUCT

N/W SCANN

SETTING

OPERATI

SETTING

ENERGY SAVE

INTERFACE SETTINGS

COLOR ADJUSTMENTS

COLOR BALANCE

EXECUTE

KEY OPERATOR PROGRAMS

COLOR BALANCE

C M Y Bk C M Y Bk C M Y Bk ALL

LOW AREA MIDDLE AREA HIGH AREA

Adjusting the color balance (additional information for Step 6 on the previ-

ous page)

1Place the color chart on test pattern 1 and compare the colors.

For the placement of the color chart, see page 4.

2In column 1 of test pattern 1, locate the color density level that is the same as “1” in the color chart.

Mark that level with a pencil or pen to help you remember it.

If none of the levels in column 1 match “1” in the color chart, do the following:

• If the density level of “1” in the color chart is darker than the maximum value (+4) in column 1, mark “+4”

in column 1.

• If the density level of “1” in the color chart is lighter than the minimum value (-4) in column 1, mark “-4” in

column 1.

3Repeat the above step for columns 2 through 12 of test pattern 1, comparing each column with the

corresponding color in the color chart.

4Enter the levels that you marked on test pattern 1 (each level corresponds to a value from +4 to -4

as indicated on the right ) in the following screen (the screen in Step 6 on the previous page).

How to use the keys in the screen

: Use the and keys to select the color (C,M,Y,or Bk) in “LOW AREA”, “MIDDLE AREA”

or “HIGH AREA” that you wish to adjust.

: Use the and keys to select the density level (+4 to -4) that matches the density level in

the standard color chart.

: Use the key to return all values to the default settings.

+ALL : To adjust all values simultaneously, select “ALL” with the key and then adjust the values

with the and keys.

5Perform Step 7 on the previous page.

If you selected “+4” or “-4” for a color that does not have a density level that matches the level in the color

chart, repeat steps 5 through 7 on the previous page.

12 12

High Density

CMYBk

Low Density

CMYBk

Mid Density

CMYBk

Test pattern 1 (printed by printer) Color Chart (included with printer)

Column 12

Column 1

Color density level

C M Y Bk C M Y Bk C M Y Bk ALL

LOW AREA MIDDLE AREA HIGH AREA

Using Easy Calibration

Use Easy Calibration when there is only a small difference between the colors in the color chart and the

test page printed as explained on page 3.

Follow the steps below to perform Easy Calibration using the operation panel.

1Enter the key operator programs.

To enter the key operator programs, see “Using

the key operator programs”on page 3 of the Key

Operator’s Guide.

2Touch the [PRINTER SETTINGS] key.

3Touch the [COLOR ADJUSTMENTS] key.

4Touch the [EASY CALIBRATION] key.

5Load A4 or letter-size paper in the tray and

touch the [EXECUTE] key.

When the [EXECUTE] key is touched, "SELF

PRINT IN PROGRESS" appears in the display.

After a brief interval, the test patterns for Easy

Calibration will be printed. (see the following

page).

6Select the gray color that you prefer from

either of the printed test patterns (test pattern

2 or test pattern 3), and set the X and Y coor-

dinates of that color in the following screen.

For a detailed explanation of this procedure, see

“Easy Calibration”on the following page.

How to use the keys in the screen

7Touch the [OK] key.

Your settings will be saved and you will return to

the Color Setting screen. Print a test page as

explained on page 3 and verify that the colors

match the colors in the standard color chart.

KEY OPERATOR

CODE CHANGE

PRINTER

SETTINGS

CCOUNT

ONTROL

SETTINGS

ST PRINT PRODUCT

N/W SCAN

SETTING

OPERATI

SETTING

ENERGY SAVE

INTERFACE SETTINGS

COLOR ADJUSTMENTS

KEY OPERATOR PROGRAMS

COLOR ADJUSTMENTS

EASY CALIBRATION

TEST PRINT

EXECUTE

MEMO

If you cannot find an acceptable color of

gray in the test patterns, adjust the color

balance using the Color Balance settings

as explained on page 5.

KEY OPERATOR PROGRAMS

TEST PRINT

PLEASE PLACE THE PRINTED TEST PATCH SELECT.

:Touch the , ,

and keys to select the

desired color of gray.

Easy Calibration (additional information for Step 6 on the previous page)

Easy Calibration is performed by selecting the desired color of gray (processed gray), which is a combina-

tion of cyan, magenta, and yellow.

Test patterns 2 and 3 indicate processed gray colors with the current gray color as the reference point

or origin (“0”).

•The X axis shows the density of magenta in seven increments from -3 to +3 (-3 to 0 in test pattern 2 and

0 to +3 in test pattern 3).

•The Y axis shows the density of yellow in seven increments from -3 to +3.

•The density of cyan is constant.

1Select the processed gray color that you prefer from test pattern 2 or test pattern 3.

For example, if you prefer the color indicated above in test pattern 3, select “+1”for X and “-2”for Y.

2Enter the X and Y coordinates of the color you prefer in the following screen (the screen in Step 6

on the previous page).

How to use the keys in the screen

:Touch the , , and keys to select the desired color of gray.

3Back to step 7 on the previous page.

Test Pattern 2 (printed by printer) Test Pattern 3 (printed by printer)

Magenta

(-3~±0)

Magenta

(±0~+3)

Example:if this is

the desired color,

select “+1” for X

and “-2” for Y.

Yellow

(-3~+3)

Yellow

(-3~+3)

SHARP CORPORATION PRINTED IN CHINA

2002M KS2

TINSE2363FCZZ

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