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3-2 Variable Mode Printing
Variable Mode
Printing
The printer uses these techniques to vary the quality of a print
and speed of printing:
◆ Direction — for fastest print speed, the printheads fire ink
bidirectionally, when the carriage travels in both directions.
To reduce certain banding effects, the printheads can be set
to fire only when the carriage is moving to the left.
◆ High quality (HQ) — when enabled, reduces certain band-
ing effects.
◆ Color Set — ink sets may contain one each of a different
color, two each of a different color, varying densities of cer-
tain colors, or combinations. Using two sets of colors speeds
printing, while using multidensity inks creates smoother
transitions between light tones, and increases the perceived
resolution of the print.
◆ Jet Replacement — jets on the printhead that are misfiring or
not firing at all can be replaced with alternate jets. Ideally,
every pixel called for in a print is printed. In reality, some
pixels are not printed because the ink jets tend to become
partially or completely clogged with ink, which reduces print
quality. AutoJet mapping substitutes an otherwise unused jet
for a missing or deflected jet.
◆ Passes — number of times the printhead passes over a given
area of the image. A greater number of passes makes a
greater number of substitute jets available, but slows print-
ing speed.
Print quality (apparent resolution and smooth gradients) is
improved by:
◆ Increasing the number of passes (see “Selecting a Print
Mode” on page 3-7)
◆ Increasing the number of different ink colors (and/or
densities); see “Selecting a Print Mode” on page 3-7
◆ Printing in HQ mode (see “Selecting a Print Mode” on page
3-7)
◆ Printing unidirectionally (left only); see “Selecting a Print
Mode” on page 3-7
◆ Selecting “Do not print white space” under Configure
Printer - Printer Options - Print White Space (see “Printer
Options” on page 2-13)
◆ Using MediaSaver (ColorSpan Print Server feature) to group
jobs together, eliminating the drying delay between jobs