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who invented printer machine

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  The earliest documented references date back to the 1500s, but solid evidence of a working device dates back to the mid-1500s. How did this invention change the world? A printer created text and imagery using moveable type. It's not tangible in your hands, but you can learn more about it here. Imagine all of our libraries today if we had not invented mechanical printing! Today printers are used for everything from printing copies of documents to outputting graphics, photos, videos and music by transforming digital information into these physical formats.   Image source: https://www.amazon.in/ Who invented the first printing machine and when? The first documented and widely accepted version of a printing press was built by German Johannes Gutenberg in 1450. He based his design on a monastic screw press, also known as a "rock hammer." (1) A rock hammer is a type of screw press that subjects pressure to paper or cloth using heavy rocks or blocks. Gutenberg took...

printer who sets and corrects type

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  In the days before the computer, printing was done by hand, with all of the stages being carried out by different people.    Image source: https://www.youtube.com/ The first stage required a good knowledge of letterforms and a range of tools, including metal "chases" which held the letters in place; punches to make holes in them; and matrices to cast new ones.    Image source: https://www.amazon.in/ Linotype operators had to have specialized skills for casting molten lead into hot metal slugs for use in automatic typecasting machines.    Image source: https://www.croma.com/ Later on, after printing had begun on paper from movable type locked up as "formes", it often became necessary to proofread what had been set by eye while it was still damp and lift out any letters that had not properly taken their imprint.   Image source: https://www.flipkart.com/  After that, the line was printed from the oil lamp, and a skilled compositor would "li...