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From producing business documents to
greeting cards to photos, color
printers have changed the way we work and
print at home and in the office. In fact, color
printers are such a common computer
accessory that today many retailers even offer a
free one when you purchase a computer.
Traditionally, color laser
printers were kept in the workplace while
ink-jet
printers were the popular choice for home
and home-office users. With the ever-improving printer,
toner and ink technology, along with the drop in
prices on different types of printers,
you now have more choices now than ever.
Laser
Printers — How They Work
Laser
printers use a laser beam to produce an
image on a drum. The light of the laser alters the
electrical charge on the drum wherever it hits. The
drum is then rolled through a reservoir of toner,
which is picked up by the charged portions of the
drum. Finally, the toner is transferred to the paper
through a combination of heat and pressure.
Because an entire page is
transmitted to a drum before the toner is applied, laser
printers are sometimes called page printers.
Two other types of page printers
fall under the category of laser
printers even though they do not use
lasers at all. One uses an array of LEDs to expose
the drum, and the other uses LCDs. Once the drum is
charged, however, they both operate like a real laser
printer.
Laser Color Printing
In addition to the standard monochrome laser
printer, which uses a single toner, color
laser
printers use four toners to print in full
color. However, each color is applied in a separate
pass over the drum, meaning that color lasers are
four times slower and four times more likely to
encounter problems (e.g., paper jams) than a
monochrome laser
printer. Also, color laser
printers tend to be about five to ten
times more expensive than their monochrome siblings.
Ink-Jet
Printers — How They Work
Ink-jet
printers work by spraying ionized ink
onto a sheet of paper. Magnetized plates in the
ink's path direct the ink onto the paper in the
desired shapes. Ink-jet
printers are capable of producing
high-quality print approaching that of photographs.
In general, the price of ink-jet
printers is lower than that of laser
printers. However, they are also
considerably slower. Another drawback of ink-jet
printers is that they require a special
type of ink that is apt to smudge on inexpensive
copier paper. Because ink-jet
printers require smaller mechanical parts
than laser
printers, they are especially popular as
portable printers.
In addition, color ink-jet
printers provide an inexpensive way to
print full-color documents.
Most ink-jet
printers have one cartridge that holds
black ink and a second cartridge that holds the
cyan, magenta and yellow ink needed for color
printing. Newer color ink-jets have one smaller
cartridge for each of the three colors, allowing you
be buy inks more efficiently.
Solid
Ink-Jet Printers — How They Work
Solid
ink-jet printers melt sticks of colored
wax-based inks and then spray them on paper. The
solid ink is applied through a stainless steel print
head with very tiny holes. The ink is jetted from
the print head to a heated drum where it remains in
a malleable state that ensures precise transfer to
the paper. Solid
ink-jet printers produce vivid colors and
can print on nearly any surface. Early models of solid
ink-jet printers were quite slow and
expensive. Today, however, you can purchase color
office solid
ink-jet printers for about $1,000 price
range with an output of 24 color pages
per minute (ppm).
Comparatively Speaking — Laser,
Solid Ink & Inkjet
The start-up costs of buying a color laser
printer are higher than that of an
ink-jet. Over long-term use, however, the cost of
running a laser
printer is cheaper. The printer
itself and toner is more expensive when compared to
the purchase cost of an ink-jet
printer, but both the machine and toner
will last longer than an ink-jet
printer and color print cartridges. Solid
ink printing provides a cheaper operational cost,
but does not produce the quality of an ink-jet
or speed of a laser
printer.
Laser
and solid
ink printers do offer better speed than
an ink-jet
printers and you'll find less smudging
and less color fading on color documents printed on
a laser
printer. The trade-off is lower resolution
(most affordable color laser
printers in the $300+ range and under
offer a resolution
of up to 600 dpi,
compared to ink-jet
printers which can be purchased for under
$100+ and offer anywhere from 2400 to 4800 dpi
resolution),
along with a higher initial purchase cost.
When choosing a type of printer,
you first must determine your printing needs. If,
for example, you expect to print a smaller quantity
of color documents or photographs then an ink-jet
printer will most likely be the best
choice. Laser
and solid
ink printers will print faster than an ink-jet
and you can print double-sided documents without the
ink showing through the paper as it often will with
ink-jets. If you expect to print documents, manuals
or business cards and brochures in larger quantities
you really don't want to do this on an ink-jet
printer. For a business looking to print
a larger quantity of color documents, including
manuals or brochures then you're going to want to
look at laser
printers, and if you need to print color,
at a faster rate on a variety of media
types, then a solid
ink printer may be worth further
investigation.
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