Dot matrix printers have largely become obsolete in recent years due to several reasons. Firstly, the technology they use is outdated. The print quality of dot matrix printers is relatively low, with a resolution of around 9 to 24 pins per inch, resulting in coarse and dotted prints. In contrast, modern printers such as inkjet and laser printers can provide highly accurate and clear text and image printing.

　　Secondly, dot matrix printers are notoriously loud and noisy during operation. The mechanical rubbing of the pins against the ink ribbon produces a significant amount of noise, which can be quite annoying, especially in quiet environments. Modern printers, on the other hand, operate much more quietly.

　　Another factor is their slow printing speed. Dot matrix printers are designed to move the print head slowly for accuracy, which means they can take a long time to print even a small receipt. In comparison, modern printers can print hundreds of pages within a few minutes.

　　Furthermore, dot matrix printers lack modern features such as the ability to print in different fonts and graphics, as well as smartphone compatibility. With the increasing demand for instant printing, portable printers, and multifunctional devices, the market has shifted towards more advanced printing technologies.

　　it should be noted that dot matrix printers still have some niche applications. They are sometimes used in specific industries where multi-part forms or continuous paper printing is required, such as in some billing and invoicing systems, or for printing receipts in certain retail environments where a carbon copy is needed. But their usage has significantly declined, and they are no longer the mainstream choice for most printing needs.

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