Laser printers were invented by Xerox in the late 1960s.
Electro-photo-graphy technology is used. The technology uses laser beam scanning drum to make the sensing drum absorb and not absorb toner by controlling the switch of laser beam. The drum then transfers the absorbed toner onto paper to form the printing result. The whole printing process of laser printer can be divided into three stages: controller processing stage, ink shadow and transfer stage. Laser printer was invented very early, but its popularization and popularization began in the early 1980s, and it has been developing rapidly in the past two years. The development of laser printers includes the following aspects.
(1) Prices have fallen sharply
The original laser printer was a luxury that most people could not possibly reach. In the early 1980s, Canon commercialized desktop laser printers and formed batches, which led to a sharp drop in prices. As a result, laser printers gradually began to be popularized. In turn, their popularization and promotion promoted the decline in prices. Their rapid development is rare in computers and peripheral products. In early 1997, Hewlett-Packard took the lead in further reducing the price of most of its laser printers. Other companies also cut the price one after another, making the price of ordinary laser printers nearly 3,000 yuan per unit. In 2003, a batch of thousand-Yuan laser printers headed by HP appeared.
(2) The performance of the machine core has been greatly improved.
As a key component of laser printer, the machine core includes mechanical and photoelectric integration technology. The progress of these technologies promotes the improvement of the performance of the machine core. Two years ago, the core of popular laser printers was generally 600 dpi, and the core was generally 240,000 dpi, or even higher; the speed also developed from 4 ppm, 8 ppm to 16 ppm, 24 ppm; the width was not only A4, but also printed B4, A3.
(3) Control technology is improving day by day
Controller is the soul of laser printer, which directly affects the performance of printer. The CPU used by the controller has developed from a single Motorola 68000 to RISC chip, such as Intel i960 and AMD 2900. Its processing ability has been greatly enhanced. Secondly, the PDL of laser printer has formed an industrial standard, and PostScript has become the standard of high-end laser printer. Language; HPPCL language has become the de facto standard for middle and low-grade laser printers. Laser printers either have simulation in one language or both. Thirdly, new technologies such as resolution enhancement technology (RET) and memory enhancement technology (MET), also known as memory compression technology, are emerging and are being mastered by more and more manufacturers.
Whether the future development prospects of laser instead of inkjet, or whether the two are leading the way, the industry has been debating for this reason. But this is a topic that is no longer new. After the first quarter of 2006, it became the center of discussion again. Simple theoretical discussion and “preaching” may be too empty and abstract. Therefore, we might as well make a comparison between them from several elements that must be highlighted in the printing demand. At the three levels of cost input, printing quality and speed, printing load and stability, which are most concerned by consumers, we can make a comprehensive comparison between lashing and spraying.
Technical support content was provided by v4ink, a Printer Toner Cartridge Supplies