The innovation are listed below....1) in the mid-19th century, Richard Hoe of New York had perfected the power driven cylindrical press. It was capable of printing 8000 sheets per hour. It was specifically used for printing newspaper.......2) in the late 19th century, the offset press was developed which could print up to six colors at a time.....3) from the beginning of the 20th Century, electrically operated presses accelarated printing operation...s.4) later, some other improvements were developed ....5) these were methods of feeding paper, up the qualities of plates, automatic paper reels and photoelectric controls of the color register were introduced......

Lithography was invented in 1796 by Alois Senefelder. It is a method of printing that uses a flat stone or metal plate and a greasy substance to create an image. The image is then printed onto paper or other materials. Lithography was an important innovation in print technology because it allowed for the creation of high-quality, detailed images that could be reproduced quickly and easily.


The rotary press was invented in the early 19th century and revolutionized the printing industry. It allowed for faster, more efficient printing of large quantities of text and images. The rotary press uses a rotating cylinder to press ink onto paper, rather than the flat, manual presses that preceded it.


The linotype machine was invented in the late 19th century and revolutionized typesetting. It allowed for the creation of entire lines of type rather than individual letters. This made typesetting faster and more efficient, and allowed for more complex layouts in printed materials.


Offset printing was invented in the early 20th century and is still in use today. It is a method of printing that uses a rubber blanket to transfer ink from a metal plate to paper. Offset printing is more efficient than traditional letterpress printing, and allows for high-quality, full-color printing.


Digital printing is a relatively recent innovation in print technology. It uses digital files to print images and text onto paper or other materials. Digital printing is faster and more flexible than traditional printing methods, and allows for personalization and customization of printed materials. It has revolutionized the printing industry, allowing for on-demand printing and shorter print runs.