Sharp MX-PEX1 (serv.man14) User Manual / Operation Manual ▷ View online
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10 Choose Yes to print the measurement page.
This page is comprised of swatches of color that are measured by the MFP’s scanner
and compared to the target color values. After the page is printed, the Measure Page
screen appears.
and compared to the target color values. After the page is printed, the Measure Page
screen appears.
11 Choose Yes in the Measure Page screen.
12 When prompted on the MFP touch panel, place the Kodak Gray Scale strip face-down on the
MFP glass.
Place the strip along the top center/edge of the MFP so that it is centered between the paper
width marks on the MFP.
13 Place the color measurement page face-down over the grayscale strip.
Make sure the patches on the grayscale strip do not overlap the color patches.
Close the platen glass cover, being careful not to move the grayscale strip and color
measurement page.
measurement page.
14 On the MFP touch panel, choose OK.
Status messages display the progress of scanning and calculating measurements.
15 When prompted to Print Comparison Page (Expert Mode only), choose Yes to print a preview
of the selected calibration.
Choose from a list of output profiles that use the same calibration set and press OK.
This option appears only in Expert Mode calibration.
This option appears only in Expert Mode calibration.
16 When prompted to apply or overwrite the calibration, choose Yes.
17 Choose Yes to confirm.
Status messages display progress information. When calibration is complete, the MFP touch
panel display returns to the Functions menu.
panel display returns to the Functions menu.
T
O
REMOVE
CALIBRATION
FROM
THE
MFP
TOUCH
PANEL
1 From the MFP touch panel, access the Calibration menu, as described on
page 64
.
2 Choose Remove Calibration.
3 When prompted, verify that you want to proceed with removing calibration.
The current measurements are removed and a default calibration is restored.
1
Place grayscale strip
face down
face down
2
Place color measurement
page face down over
grayscale strip
page face down over
grayscale strip
1
2
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Understanding calibration
The following sections describe important concepts and suggestions for understanding
calibration.
calibration.
An overview of calibration
Calibration generates curves that adjust for the difference between the actual toner densities
(measurements) and the response expected by the output profile.
(measurements) and the response expected by the output profile.
• Measurements represent the actual color behavior of the MFP.
• Calibration sets are sets of measurements that combine media options provided for
Calibrator.
• Each output profile contains a calibration target that describes the expected behavior of the
MFP.
After you calibrate the Fiery X3eTY2, a calibration set is stored. This calibration set is used
when it is associated with an output profile. Every output profile has an associated calibration
set. If you have not specified one, the calibration set associated with the default output profile
is used.
when it is associated with an output profile. Every output profile has an associated calibration
set. If you have not specified one, the calibration set associated with the default output profile
is used.
If you change the calibration after a saved job has been processed (RIPped), you do not have
to reprocess (reRIP) the job. The new calibration affects the job without reprocessing.
to reprocess (reRIP) the job. The new calibration affects the job without reprocessing.
N
OTE
:
Changing calibration has the potential to affect all jobs for all users, so consider
limiting the number of people authorized to perform calibration. Set an Administrator
password in Fiery X3eTY2 Setup to control access to calibration (see
password in Fiery X3eTY2 Setup to control access to calibration (see
Configuration and
Setup
).
How calibration works
Although the needs of most users are met by the default calibration set, the Fiery X3eTY2
allows you to choose a calibration set to customize calibration for specialized jobs.
allows you to choose a calibration set to customize calibration for specialized jobs.
Calibration allows you to:
• Maximize the color reproduction capabilities of the Fiery X3eTY2.
• Ensure consistent color quality over time.
• Produce consistent output across Fiery X3eTY2 servers.
• Achieve better color matches when reproducing
spot colors
, such as PANTONE colors or
other
named color
systems.
• Optimize the Fiery X3eTY2 for using ColorWise rendering styles (CRDs), CMYK
simulations, and ICC profiles.
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Success in obtaining satisfactory print quality from the Fiery X3eTY2 depends on many
factors. Among the most important are establishing and maintaining optimal toner densities.
The
factors. Among the most important are establishing and maintaining optimal toner densities.
The
density
is the measure of the light absorbed by a surface. By carefully regulating toner
densities, you obtain consistent printed color.
Even with a calibrated system, toner density is affected by the settings of MFP, humidity, and
temperature. Density also tends to drift over time. Uneven toner density on paper affects
calibration results. Regular measurement detects day-to-day variations in density, gradation,
and color reproduction, and calibration corrects them.
temperature. Density also tends to drift over time. Uneven toner density on paper affects
calibration results. Regular measurement detects day-to-day variations in density, gradation,
and color reproduction, and calibration corrects them.
Calibration works by creating calibration curves on the Fiery X3eTY2 that compensate for the
difference between actual (measured) and desired (target) density values. These calibration
curves are the graphic equivalent of transfer functions, which are mathematical descriptions of
changes that are made to the initial data. Transfer functions are often graphed as input or
output curves.
difference between actual (measured) and desired (target) density values. These calibration
curves are the graphic equivalent of transfer functions, which are mathematical descriptions of
changes that are made to the initial data. Transfer functions are often graphed as input or
output curves.
The Fiery X3eTY2 generates calibration curves after comparing measured values to the final
target values for each of the four toner colors. The target values are based on the output profile
specified.
target values for each of the four toner colors. The target values are based on the output profile
specified.
Measurements
Measurement files contain numerical values that correspond to the toner density produced by
the MFP when it prints solid cyan, magenta, yellow, and black, and graduated tints of those
colors.
the MFP when it prints solid cyan, magenta, yellow, and black, and graduated tints of those
colors.
To create a measurement file, print a page of color patches. Measure the patches using a color
measurement instrument connected to a computer on the network, or if it is available, the
print device’s scanner. The new measurements are automatically downloaded to the
Fiery X3eTY2.
measurement instrument connected to a computer on the network, or if it is available, the
print device’s scanner. The new measurements are automatically downloaded to the
Fiery X3eTY2.
Output profiles and calibration sets
Output profiles and calibration sets define desired calibration results. One or more output
profiles and calibration sets are provided with the Fiery X3eTY2. When you calibrate the
Fiery X3eTY2, select the calibration set that corresponds to the typical printing jobs at your
site. This same calibration set can be associated with one or more output profiles. For more
information about output profiles, see
profiles and calibration sets are provided with the Fiery X3eTY2. When you calibrate the
Fiery X3eTY2, select the calibration set that corresponds to the typical printing jobs at your
site. This same calibration set can be associated with one or more output profiles. For more
information about output profiles, see
page 76
.
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Scheduling calibration
Calibrate the Fiery X3eTY2 at least once a day, depending on the volume of print jobs.
If it is very important to maintain consistent color, or your MFP is subject to wide
fluctuations in temperature or humidity, calibrate every few hours. For optimal performance,
calibrate whenever there is a noticeable change in print quality or printing results are not as
expected.
If it is very important to maintain consistent color, or your MFP is subject to wide
fluctuations in temperature or humidity, calibrate every few hours. For optimal performance,
calibrate whenever there is a noticeable change in print quality or printing results are not as
expected.
If you must split a print job into two or more batches to print at different times, it is
important to calibrate before you print each batch. You should also calibrate the
Fiery X3eTY2 after MFP maintenance. However, because the MFP may be less stable
immediately after maintenance, wait until you have printed approximately 50 pages before
you calibrate.
important to calibrate before you print each batch. You should also calibrate the
Fiery X3eTY2 after MFP maintenance. However, because the MFP may be less stable
immediately after maintenance, wait until you have printed approximately 50 pages before
you calibrate.
N
OTE
:
Because printed output from the MFP is very sensitive to changes in temperature and
humidity, do not install the MFP near a window, in direct sunlight, or near a heater or air
conditioner. Paper is also sensitive to climate changes. Store it in a cool, dry, stable
environment, and keep reams sealed until they are used.
conditioner. Paper is also sensitive to climate changes. Store it in a cool, dry, stable
environment, and keep reams sealed until they are used.
To monitor print quality, print the following color pages:
• Color Charts (from Command WorkStation or the MFP touch panel)
• Color reference pages included on the User Software (Drivers) CD (see pages
12
and
16
)
These pages include fully saturated color patches and pale tints of cyan, magenta, yellow,
and black. Images with skin tones offer a good basis for comparison. Save and periodically
compare the pages you print. If a noticeable change in appearance occurs, calibrate the
Fiery X3eTY2.
and black. Images with skin tones offer a good basis for comparison. Save and periodically
compare the pages you print. If a noticeable change in appearance occurs, calibrate the
Fiery X3eTY2.
When you examine the Test Page, all color patches should be visible, even though they may be
very faint in the five to two percent range. Each patch set should show uniform gradation
from patch to patch as the color lightens from 100% to zero.
very faint in the five to two percent range. Each patch set should show uniform gradation
from patch to patch as the color lightens from 100% to zero.
If the solid density patches (100% cyan, magenta, yellow, or black) look less saturated over
time, show the pages to your MFP service technician to determine whether adjusting the
MFP can improve output.
time, show the pages to your MFP service technician to determine whether adjusting the
MFP can improve output.
Checking calibration status
To verify whether the Fiery X3eTY2 is calibrated, which calibration set and output profile
were used, and when the MFP was last calibrated, perform the following:
were used, and when the MFP was last calibrated, perform the following:
• Print a Configuration page or Test Page from the MFP touch panel or Command
WorkStation.
• Select a calibration set in Calibrator. The last calibration and the user who performed it
are displayed.
Click on the first or last page to see other MX-PEX1 (serv.man14) service manuals if exist.