For the average consumer, a cost-effective printer is more important than the brand. No matter what price printer you choose, it is king. Here is a brief introduction to the HP a3 laser printer.
HP a3 laser printer is composed of laser, acousto-optic modulator, high-frequency drive, scanner, synchronizer and optical deflector. Its function is to modulate the binary dot matrix information sent by the interface circuit on the laser beam, and then scan it. To the photoreceptor. The photoreceptor and the camera mechanism form an electrophotographic transfer system, and the image image projected onto the photosensitive drum is transferred onto the printing paper, and the principle is the same as that of the copying machine.
The HP a3 laser printer is a non-impact output device that combines laser scanning technology with electronic imaging technology. Its model is different, the printing function is also different, but the working principle is basically the same, it has to go through: charging, exposure, development, transfer, power-off, cleaning, fixing seven processes, five of which are carried out around the photosensitive drum . When the text or image to be printed is input to a computer, it is preprocessed by computer software. Then the printer driver converts the print command (printer language) that the printer can recognize to the high frequency drive circuit to control the opening and closing of the laser emitter to form a lattice laser beam, and then scans the mirror to the electronic display system. The photosensitive drum is subjected to axial scanning exposure, and the longitudinal scanning is realized by the rotation of the photosensitive drum itself.
Compared to dot matrix printers and inkjet printers, the HP a3 laser printer laser printer has significant advantages.
(1) High density. Laser printers have a print resolution of at least 300dpi, as well as high resolutions of 400dpi, 600dpi, 800dpi, 1200dpi, and 2400dpi and 4800dpi.
(2) High speed. Laser printers print at a minimum of 4ppm, typically 12ppm, 16ppm, and some laser printers can print at speeds above 24ppm.
(3) Low noise. Generally below 53dB, it is ideal for use in quiet office space.
(4) Strong processing ability. The controller of the laser printer has a CPU, has memory, and the controller is equivalent to the motherboard of the computer, so it can perform complicated word processing, image processing, and graphic processing, which cannot be done by the dot matrix printer and the inkjet printer. The difference between a page printer and a line printer.
The technical structure of the HP a3 laser printer is much more complicated than the inkjet, which inevitably increases the cost of the product. Therefore, the inkjet in the early stage has a clear advantage. The entry-level inkjet printing only needs a few hundred yuan, and there are individual products. Even lower, while black and white slamming is at the threshold of a thousand dollars. Therefore, there is also a view that the need for a relatively high initial investment can not be compared to the cheap and cheap spray. In fact, this view ignores a very important hidden factor, that is, the spray is not always so low, and its product has been passed through a long-term process. On the other hand, the price of the hit is being explored step by step. Whether it can be lowered to the same price as the spray is not known, but it will be sooner or later to break through the psychological price of the consumer.
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Xinhe Stainless Steel Products Co., Ltd. Of Pengjiang District Jiangmen City , https://www.sinkhall.com