Portable printers are no longer just simple devices for printing documents. They come with a variety of extended functions that enhance their usability and versatility.

　　One of the common extended functions is mobile printing. Many portable printers support printing directly from mobile devices such as smartphones and tablets. This is achieved through technologies like Wi - Fi Direct or cloud - based printing services. For example, with Wi - Fi Direct, you can connect your Android or iOS device directly to the printer without the need for a wireless router. Once connected, you can print documents, photos, and even web pages directly from your mobile apps. Cloud - based printing services, on the other hand, allow you to print from anywhere as long as your device has an internet connection. You can upload the file to the cloud, and the printer can retrieve and print it.

　　Another extended function is duplex printing. Some portable printers are equipped with the ability to print on both sides of the paper. This not only saves paper but also makes the printed documents more convenient to handle. Duplex printing is especially useful for printing multi - page reports or brochures. The printer automatically flips the paper and prints on the reverse side, eliminating the need for manual flipping.

　　Portable printers also often support different types of media. In addition to standard A4 or letter - sized paper, they can print on photo paper, label paper, and even cardstock. This makes them suitable for a wide range of applications, from printing high - quality photos to creating custom - sized labels for packages or organizing files. Some printers even have special settings for different media types, allowing you to adjust the print quality and ink or toner usage accordingly.

　　Moreover, some advanced portable printers come with features like built - in scanners. This combination of printing and scanning capabilities turns the portable printer into a multifunctional device. You can scan documents and save them as digital files on your computer or mobile device, and then print them if needed. This is particularly handy for business users who may need to quickly scan and print important documents while on the go.

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