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bos / turboprint deb

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turboprint / usr / share / doc / turboprint / html / 8-5.html
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<H2 class="western" style="page-break-before: always"><A name="__RefHeading___Toc15481_1469257139">
</A><A name="8.5.Index card &bdquo;Ink Ctrl&ldquo;|outline"></A> 8.5
 Index card &bdquo;Ink Ctrl&ldquo;</H2>
<P class="western">This index card is not available in the &ldquo;Basic&ldquo;
 version of TurboPrint</P>
 <P ALIGN="CENTER" STYLE="margin-bottom: 0cm"><IMG align="left" height="263" hspace="19" name="Grafik51" src="settings-inkctrl.png"
vspace="4" width="392"></P>
<BR clear="left">
<P class="western" style="margin-bottom: 0cm">
</P>
<P class="western">
The controls of this menu page enable you to optimize the print quality
 or to reduce the ink consumption &ndash; whereas high quality and low ink
 consumption are not necessarily mutually exclusive. With TurboPrint you
 can save ink without a noticeable loss in print quality.</P>
<H5 class="western">Black Level / UCR (under color
 removal)</H5>
<P class="western">The generation of grayscales with colored or black
 ink is influenced with this slider. The advantage of using more black
 ink is a lower ink consumption whereas mixing grayscales with more
 color leads to smoother and less grainy colors. Bright tones of gray
 are ideally generated with colored ink, whereas with darker gray tones,
 black ink is used increasingly instead of using colors. The &ldquo;black
 level&rdquo; control determines the usage of black ink when mixing colors.</P>
<P class="western">In the default setting black ink is only used in
 darker gray tones to avoid visible black dots.</P>
<P class="western">Shifting the slider upwards leads to black ink being
 used for brighter gray tones and further replaces more color by black
 ink in the darker gray tones. Each drop of black ink drop substitutes
 for three drops of colored ink &ndash; in this way a considerable amount of
 ink can be saved. As a drawback, your printout may be slightly rougher.</P>
<P class="western">In contrast, shifting the slider downwards leads to
 even darker gray tones being printed using colors without using black
 ink. As a result you get finer gradations but the ink consumption will
 be higher.</P>
<P class="western" style="margin-left: 1.25cm"> 
<B>Note:</B></P>
<P class="western" style="margin-left: 1.25cm">This control is only
 available if pure black ink can be used. Some printers only use pure
 black when printing on plain paper.</P>
<P class="western" style="margin-left: 1.25cm">This function is not
 supported when using ICC printer profiles.</P>
<P class="western" style="margin-left: 1.25cm; margin-bottom: 0cm">
TurboPrint Studio: In &ldquo;CMYK Proof&rdquo; mode the mixing of black is performed
 according to the CMYK data of the source document as much as possible.
 When reproducing color tones that the printer cannot produce as
 prescribed there may be modifications of this precept &ndash; e.g. additional
 color may be added to black tones in order to obtain a deeper black.</P>
<P class="western" style="margin-left: 1.25cm">The setting &ldquo;Black Level
 (UCR)&rdquo; is not effective for the color mode &ldquo;CMYK Proof&rdquo; mode. However
 it affects the &ldquo;CMYK Proof (mix black)&rdquo; mode.</P>
<H5 class="western">Bright Cyan / Bright Magenta
 / Photo Inks</H5>
<P class="western">(These controls are not available with ICC color
 profiles)</P>
<P class="western">The use of the additional colors &ldquo;bright cyan&rdquo; and
 &ldquo;bright magenta&rdquo; of photo printers can be controlled with these
 sliders. You can reduce the use of the bright inks (values &lt; 50) by
 replacing them with the corresponding dark inks. This results in a
 decreased total ink consumption but produces slightly grainier
 printouts. Conversely you can use more bright inks with values greater
 than 50.</P>
<P class="western">When using printers with combined ink cartridges
 (several colors within the same cartridge) the consumption of all
 colors should be balanced &ndash; i.e. if significantly more bright cyan has
 already been consumed than dark cyan, you should shift the slider
 downwards to save bright ink (respectively upwards to save dark ink).</P>
<P class="western">Depending on the internal color profile, there are
 either two sliders for controlling the usage of &ldquo;bright cyan&ldquo; and
 &ldquo;bright magenta&ldquo; separately, or a single &ldquo;Photo Inks&ldquo; slider that
 changes the usage of both inks concurrently.</P>
<H5 class="western">Ink Limits</H5>
<P class="western"><B>Total Ink Max</B></P>
<P class="western">With this control you can limit the maximum amount of
 ink applied per printer dot. Its purpose is mainly to prevent an
 over-soaking of the paper and &ldquo;bleeding&rdquo; of the colors.</P>
<P class="western">For example &ldquo;300%&rdquo; means that a maximum of 100% of
 the yellow, magenta and cyan inks may be applied at the same time. With
 &ldquo;400%&rdquo; an additional 100% of black ink may be applied.</P>
<P class="western">Higher values cause a richer black (with higher ink
 consumption), lower values result in a lower ink consumption (with a
 lower intensity of black).</P>
<P class="western">If excessive ink is applied resulting in smearing
 (&ldquo;bleeding&rdquo;), you can reduce the amount of applied ink by shifting this
 slider towards lower values. (You may also use the control &ldquo;Color
 Saturation&rdquo; of the &ldquo;Main&ldquo; index card).</P>
<P class="western" style="margin-bottom: 0cm">
</P>
<P class="western"><B>Separate ink limit sliders for black, cyan,
 magenta and yellow inks</B></P>
<P class="western">With these controls you can limit the maximum applied
 amount of every ink color separately. As only highly saturated colors
 are affected, most colors will remain unchanged. With its integrated
 color profile generator, TurboPrint tries to adapt the affected colors
 as much as possible to keep the overall color balance unchanged.</P>
<P class="western">The intensity of colors does not increase linearly
 with the amount of applied ink. Instead it increases similar to a
 saturation curve, i.e. in the upper region an application of 20% more
 ink results in only a 1% increase in color saturation. By cutting back
 in this region, you can save ink quite effectively without a noticeable
 loss in print quality. Hence ink is saved in the portions of the image
 with intense colors.</P>
<P class="western">In case of a printer with a combined ink cartridge
 (several colors within the same cartridge) it is important to
 preemptively reduce the limit of the ink that tends to be used up first
 (in most cases the yellow ink) - this way the lifetime of the cartridge
 can usually be prolonged up to 30%.</P>
<P class="western">
Also you can reduce the amount of ink consumption with single ink
 printers by cutting back the ink peaks - and you can use this setting
 without having to consider the remaining ink levels.</P>
<P class="western">If you have chosen &bdquo;Perception Inksave&ldquo; as rendering
 intent some ink limits are already active. The &ldquo;Separate Ink Limits&rdquo;
 controls will then additionally reduce the ink limits (sliders
 downwards) or lessen the limitations (sliders upwards).</P>
<P class="western"><B>Exception - black ink limit:</B></P>
<P class="western">To achieve very dark shades of colors not only pure
 black ink is used but the color inks yellow, magenta and cyan are
 added.</P>
<P class="western">The control &ldquo;black ink limit&rdquo; does not change the use
 of the black ink. Instead the amount of color inks which are added to
 dark shades is changed. As a result the consumption of color inks is
 reduced when lowering the black ink limit. If you increase the black
 ink limit, more colored ink will be added to dark gray and black areas
 - resulting in deeper and darker gray/black shades.</P>
<P class="western">

</P>
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bos / turboprint deb

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