As against, scanners work with illuminator lamp, lens and charged coupled device array to convert the printed copy into a digital copy. In laser printers, photosensitive material and laser (to charge the photosensitive plate negatively) are an important part of it, after which with the help of toner the printing is accomplished. When it comes to non-impact printers, these include the tiny ink nozzles and resistive heating effect (in inkjet printers). The working mechanism of an impact printer includes the generation of the impact over the paper.In contrast, excluding handheld scanners, all the scanner works with some certain dimension of pages which included length, width and thickness of the paper. As we know that most of the software provides the options for printing the result, it produces, hence all the types of extension are supported by printers.A document before printing it and processing it for the printing process can be easily edited and altered while in case of the scanner, the digital document is altered after its generation by scanning the solid object. ![]() On the other hand, the scanner is used for the inverse process, where the data over a sheet of paper is transformed into a digital document.
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