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目前显示的是 五月, 2022的博文

How about the Laser Printer

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A laser printer uses complex technology and takes up a lot of space.  Let us examine these pros and cons of laser printers. Considering these benefits, you should think twice before investing in a laser printer. laser printer A laser printer is a machine that produces high-quality text, moderate-quality photographs, and images. The process involves using a negatively-charged drum to transfer an image onto paper, and then heating the paper to permanently fuse the image. Laser printers use a process known as xerography, which is similar to that used in analog photocopiers, but instead of using an optical beam to create an image, a laser generates an electrical charge by reflected light from an existing document. Color laser printers use a colored toner, typically cyan, magenta, yellow, and black. While monochrome printers only have one laser scanner assembly, color printers use two or more, typically one for each color. The color laser printer is capable of producing millions of colors.