A printer is a revolutionary birth in the world of
computing. It is a device, which
generates a hard copy of the documents stored in electronic form also known as
soft copy. It prints the data on
physical print media such as paper or transparencies.
Printers are intended for low-volume printing jobs, which
necessitate very less time to get a hard copy of a given document. Printers are sluggish devices and the cost
per page is reasonably soaring. Since the improvement of quality and
performance of printers, many jobs that used to be done by professionals in
print shops are now being done by people on their own local printers.
Most of the new printers come with a USB cable, which serves
as a document source. Many printers are
principally used as local peripherals, and are attached by a printer
cable. Printers that have built-in
network interfaces and can serve as a device for hard copy for any user on the
network are commonly known as network printers.
Printers are often are designed to keep up both local and network
connected users at the same time.
Modern
printers can directly connect through electronic media such as memory
sticks or memory cards, or two devices such as digital cameras and scanners
with the help of USB cables and Bluetooth.
Printers that include non-printing features are sometimes called
Multi-function Printers (MFP) or All-In-One (AIO) printers. Most MFPs include printing, scanning, copying
and the facility of fax are among their features.
In the early years, the speed of printers was measured in
units of characters per second. However,
in modern era speed of printers is measured in pages per minute (ppm). The speed of printing 30 pages per minute is
considered as a fast speed, but there are many inexpensive printers whose speed
is far slower than this. A Laser printer
can be the fastest printer, which also comes in different variants of its
speed. However, its speed is sometimes
faster than all other printers.
There are various types of printers such as monochrome
printer, which can only produce an image consisting of one color, usually
black. A color printer, which can
produce images of multiple colors. A
photo printer, which can produce images of high resolution with multiple
colors.
The world's first computer printer was the 19th century
mechanically driven type equipment; invented by Charles Babbage. Now there are many companies, which are
providing low-priced printers with admirable performances and features. Such companies are Canon, HP, Brother,
Lexmark, Xerox and Toshiba etc. to name a few.
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