Print Quality - Xerox 7500DX - Phaser Color LED Printer Evaluator Manual

Section 1: Evaluating Tabloid/A3 Color Printers

Print Quality

Many factors determine the quality of the print output delivered by a
color printer.
Printhead technology and image resolution, color registration and
accuracy and intuitive, user-friendly color adjustments are all key components of
a printer's ability to deliver the results you demand to bring your high-end color
print jobs in-house.
Precise Color Registration
The Phaser 7500 digitally adjusts for
®
mis-registration. Notice the white edges on the
"G" and "M" produced by the laser device. The
Phaser 7500 automatically makes the neces-
sary adjustments.
Phaser 7500
R G B
C M Y
Comparable Laser
R G B
R G B
C M Y
C M Y
*English only.
6 Xerox Phaser 7500 Color Printer Evaluator Guide
How the Phaser 7500
®
printer exceeds the print
quality requirement
Color controls
Our Xerox-exclusive "Color by Words,"
a powerful-yet-intuitive color technology,
takes the guesswork out of optimizing
your color print jobs. With Color By Words*
there is no need to manipulate source
files. Users simply select the desired
color modifications from a drop-down
list—such as "pale green colors a lot
more green" or "red colors a lot
more saturated"—and the image is
automatically adjusted.
Color registration and accuracy
With an ASIC driver to control the light
intensity of the LEDs in each printhead,
HiQ LED offers better dot-to-dot intensity
and timing control, and produces more
precise color registration. HiQ LED handles
mis-registration issues automatically,
simultaneously and continuously, from
LED to LED. In fact, tests show that HiQ
LED technology corrects color
mis-registration even better than
comparable laser printers.
Also, with Pantone -approved color
®
tables, the Phaser 7500 prints specified
colors consistently and accurately,
ensuring that the colors you expect are
the colors you get. Plus, true Adobe
PostScript 3™ gives you the power to
®
print visually rich documents reliably.
Plus, text is sharp and readable whether
printed in black on colored backgrounds
or in color on black backgrounds, thanks
to the Phaser 7500 printer's Black
Trapping feature.
Printhead technology
and image resolution
The Phaser 7500 color printer features
the new Xerox HiQ LED printhead,
which offers major improvements in
image quality.
In the Phaser 7500 there are four
individual printheads. With each LED
array packing 1200 diodes per inch, the
printhead can create many more, and
®