A copying machine, often called a photocopier, is a device that makes duplicate copies of documents and images. It works by using light to scan the original document, which is then transferred onto paper. This process allows for quick and efficient reproduction of text and images, making it a valuable tool in offices and schools. Modern copying machines can perform various functions, including color copying, scanning, and printing. Many are equipped with features like automatic document feeders and duplex printing, which allows for double-sided copies. These machines have become essential for managing paperwork in today's digital age, alongside devices like printers and scanners.