The general principle of the printer troubleshooting aspects _ Hardware Maintenance

General principle faults in Printers

Whether it's Home Office or office work, the printer must be a necessary Office product. Using the printer, we can do Home Office text output, multimedia production effect output, image printing output and other media output. Different application fields, the use of the printer requirements, printing results are different, at the same time, the performance of the printer itself has also put forward certain requirements. Each person when using a printer, also hope that the printer can bring convenience and quick. However, there are many novice users, in the use of the printer process, often encountered a variety of printing failures, these failures to their normal work has brought a lot of trouble, is the vitality of the printer is so "fragile" it? Non-also, in fact, many failures are due to the operator's understanding of the printer is not enough; In addition, do not understand the knowledge of the printer, we can not in the dazzling printer products, picked to a printing speed, the use of low-cost, highly operable printer! To this end, this article will be the relevant knowledge of the printer, in order to enable users to really enjoy the good printer for us to bring the wonderful!

First, the development of printers, market situation

Depending on the output effect, the printer is mainly divided into laser printers, inkjet printers, stylus printers and other special function printers; For many ordinary users, needle printers and other special features of the printer is not a lot of opportunities, so the focus of this article is to introduce laser printers and inkjet printers.

The laser printing technology was most present in the 60 's, and the real input was actually applied in the early 70 's. The laser transmitter in the first laser printer is a large volume of electron laser tube filled with helium-neon gas, so it is limited in the practical application process. With the continuous appearance of sensitive photosensitive materials and the continuous development of laser control technology, laser printing technology has matured rapidly and put into practical application. Based on the technology of the electrostatic copier and the laser technology and computer technology, the semiconductor laser printer has been designed by the technical personnel of the United States. Compared with the needle, the printer is not only good in quality and fast in output, but also has no noise, so it has been popularized and applied quickly. After entering the 90 's, the laser printer output processing speed has reached 8 pages per minute, printing accuracy of 600DPI. It is worth mentioning that HP's resolution enhancement technology and PCL printer language technology, at this time has become a universal standard for laser printers.

At present, laser printers, according to the output speed of different, can be divided into Low-speed laser printer (output 10 ~ 30 per minute), medium-speed laser printer (output 40 ~ 120 pages per minute) as well as high-speed laser printer (output 130 ~ 300 pages per minute). Currently in the laser printer market, relatively well-known brands have Hewlett-Packard, Epson, Canon, Lida, Ricoh, Panasonic, Xerox and other series, the recent China's Lenovo and founder-branded laser printers also occupy a certain market share.

Inkjet printers began to appear in the early 90, it changed the traditional needle printer output monotonous defect, the user into a multicolored print world, but because the initial launch of the injection technology is not fully mature, the various design and development costs relatively high, The inkjet printers were used only for professional printing systems or advertising design industries. With the continuous maturation and innovation of inkjet printing technology, inkjet printers are also expanding the scope of application, in addition to the normal business office and personal office, inkjet printer "figure" has begun to appear in the desktop printing system, advertising design systems, printing and publishing systems, as well as photographic mapping systems. Now inkjet printing technology is more and more mature, and its various design costs are also greatly reduced, which makes inkjet printers in the personal home users to be quickly popularized become possible.

In recent years, with the increasing number of home computer users, inkjet printers by virtue of its price advantages and good printing effect, is gradually becoming the first choice for individual users. The current inkjet printer, has also been from the original effect of rough, slow output, time-consuming, developed to the present photo-level effect, fast output, easy to operate, especially the latest inkjet printer integrated digital function, this type of printer has a strong interest, it can be based on the different requirements of print users, Print out a variety of very interesting home digital image effects.

Second, the principle of work

After understanding the development of the printer and the current situation, do you know how the printer works? Now let's take a look at how the laser printer and inkjet printer work!