Woodblock printing is one of the oldest printing techniques where an image is carved in reverse onto a wooden block, inked, and paper pressed on it to transfer the image. It was commonly used in East Asia until the 19th century. Letterpress printing used movable metal type set on a press to ink and transfer text to paper. It was the main printing method from the 15th to 19th centuries. Offset printing plates are generated for each color and ink is transferred via rollers rather than directly contacting the paper. Laser printers use LED technology to transfer small toner particles onto paper, often more economically than inkjet printers. Desktop publishing software on personal computers in the 1980s allowed layout and design comparable to traditional printing.
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Publishing
1.
2. One of the oldest techniques of printing is
by using wood blocks. It is a relief process
in which an image is carved in reverse into
a piece of wood, inked up and paper is
pressed down on top of it to transfer the
ink and image. It is one of the rarest forms
of printing in use today, due primarily to
time consumption. However, there are
many sets of type still in existence that
were created from woodblocks and are
often used in letterpress poster printing.
The earliest surviving examples from
China date to before 220, and woodblock
printing remained the most common East
Asian method of printing books and other
texts, as well as images, until the 19th
century.
3. Letterpress printing is a technique of relief
printing using a printing press. A worker
composes and locks movable type into the bed
of a press, inks it, and presses paper against it
to transfer the ink from the type which creates
an impression on the paper.
Letterpress printing was the normal form of
printing text from its invention by Johannes
Gutenberg in the mid-15th century until the
19th century and remained in wide use for
books and other uses until the second half of
the 20th century.
4. A printing plate with a relief image is dampened
with water and then coated with ink. The ink
only sticks to the parts of the plate that are not
wet with water. The printing plate is fixed to a
roller and the image is transferred onto paper fed
under the roller.
Offset printing is created using
plates generated for each colour
used in the printing process.
There are two kinds of offset
printing called Sheetfed, in
which individual sheets are fed
into the printer, and Web, which
prints from large rolls and can be
used to quickly produce very
large quantities of printed
materials such as newspapers.
In offset-lithography, the paper
does not come into direct
contact with the printing plate.
Instead, the image is transferred
to a rubber roller.
Printing is from a stone (lithographic
limestone) or a metal plate with a
smooth surface. It was invented in
1796 by German author and actor
Alois Senefelder as a cheap method of
publishing theatrical works.
5. A laser printer is a printer for computers. It
uses LED-technology to get small particles
of toner from a cartridge onto paper. Very
often, this is more economical to use than
the ink of inkjet printers. The laser printer
was first invented by a team at Xerox in
1969.
Office photocopying was introduced by Xerox
in 1959, and it gradually replaced copies made
by Verifax, Photostat, carbon paper,
mimeograph machines, and other duplicating
machines.
6. Desktop publishing (abbreviated
DTP) is the creation of
documents using page layout
skills on a personal computer.
Desktop publishing software can
generate layouts and produce
typographic quality text and
images comparable to
traditional typography and
printing.
It was primarily the
introduction of both the
Apple LaserWriter, a
PostScript desktop printer,
and PageMaker for the
Mac that kicked off the
desktop publishing
revolution. The Apple
Macintosh was released in
1984.