Kyocera TASKalfa 3051ci Printing System (11),(12),(13),(14) Color Printing Gu - Page 50

Scheduling calibration, Measurements, Output profiles and calibration sets

Get Kyocera TASKalfa 3051ci PDF manuals and user guides View all Kyocera TASKalfa 3051ci manuals
Add to My Manuals
Save this manual to your list of manuals

Page 50 highlights

CALIBRATION 50 Even with a calibrated system, toner density is affected by the settings of copier, 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. Calibration works by creating calibration curves on the E100 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. The E100 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. Measurements Measurement files contain numerical values that correspond to the toner density produced by the copier 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 E100. 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 E100. When you calibrate the E100, 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 22. Scheduling calibration Calibrate the E100 at least once a day, depending on the volume of print jobs. If it is very important to maintain consistent color, or your copier 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 E100 after copier maintenance. However, because the copier may be less stable immediately after maintenance, wait until you have printed approximately 50 pages before you calibrate.

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
C
ALIBRATION
50
Even with a calibrated system, toner density is affected by the settings of copier, 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.
Calibration works by creating calibration curves on the E100 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.
The E100 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.
Measurements
Measurement files contain numerical values that correspond to the toner density produced by
the copier 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 E100.
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 E100. When you calibrate the E100, 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 22
.
Scheduling calibration
Calibrate the E100 at least once a day, depending on the volume of print jobs.
If it is very important to maintain consistent color, or your copier 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 E100 after
copier maintenance. However, because the copier may be less stable immediately after
maintenance, wait until you have printed approximately 50 pages before you calibrate.