The advantages and disadvantages of various printers and what kind of people are suitable for them

1. The type of printer

The printer can be divided into two major series of hits and non -hit type according to its working method. It can be divided into two types: monochrome and color. It is usually mentioned that printers are generally three types: pointer printer, inkjet printer and laser printer. Inkjet printers and laser printers are also known as inkjet printers and laser printers, because they belong to non -hit -type printers.

1. Needle printer

The needle printing machine is to work by printing the needle. When the printing command is received, the printing of the needle is hit out. The ink of the strap is printed on the paper. Its advantages are simple structure, saving of consumables, low maintenance costs, and multiple layers of medium (such as banks and other proceeds); disadvantages are large noise, low resolution, large volume, slow printing speed, printed needle breaks easily and easy to break. Essence Needle printers can be divided into 9 stitches and 24 stitches according to the number of needles. The printing speed is generally 50 to 200 Chinese characters / second. This type of printer can be divided into two types: narrow (80 column) and wide line (132 column) according to width. At present, the most widely used in my country is 24 stitches with Chinese characters library. printer.

2. Inkjet printer

The inkjet printer can be divided into two types: liquid inkjet and solid inkjet:

( 1) liquid inkjet printer
The liquid inkjet printer is to allow ink to split the mouth through the action of a strong electric field. (Canon) The company's patented Bubble Jet, its working principle is to use the bubbles generated by heating to spray the ink through the nozzle to the printing paper; Strictly controlled the sprayed ink to make the ink particles slightly and uniform, improve the problem of unclear inkjet printing caused by uneven ink dots; HP (HP) thermal (Thermal) technology, The use of this technology is designed with the ink with the print head, and the ink is sprayed out after heating. What we usually call inkjet printers are liquid inkjet printers.

(2) Solid -state inkjet printer
The solid inkjet is a patented technology launched by Tektronix in 1991. The ink was heated and liquefied, then sprayed to the paper, and penetrated it. The adhesion was quite good, the color was extremely bright, and the printing effect was sometimes even exceeded that the hot waxy printer, but the price was expensive.

The advantages of inkjet printers are low noise, better printing quality than needle, good color effect, and fast speed; the disadvantage is that it cannot print multi -layer media and print costs.

3. Laser printer

Tramine printers are printed using electronic imaging technology. When the modulation laser beam is scanned along the axial direction of the toner cartridge, according to the principle of forming lines to make the drum surface sensor, it constitutes a negative charge shadow. When the drum surface passes the ink powder with a positive electricity, the sensitive part is adsorbed on the ink. Powder, then transfer the ink powder to the paper, and the ink powder on the paper is heated to form a permanent character and graphic.其主要优点是印字质量高、分辨率高、噪声低、速度快、色彩艳丽，如果缓冲区大，占用主机的时间将相对减少；缺点是价格高、打印成本较高、不能打印多层介质、 Large volume.

4. Other forms of printers

It, in addition to the above three printers, there are hot wax, heating sublimation, and dye diffusion printers. Thermal WAX Transfer printer is also called armal transit printer. It uses the heating component on the print head to heat the straps of the color wax and transfer the solid ink on the ribbon to the printing medium. The Thermal Dry printer uses heating to melt the dye and transfer it to the paper. The dye directly sublimates from the solid state to the gesture, and the printing effect is the best. The dye diffusion printer is to heat the ink into liquid and generate uniform pigment to the paper. These printer output quality is very good, but the cost is high and the speed is slow. It is mainly used for high -end color output such as publishing, making exquisite albums, advertising and artworks.

. How to choose a printer

The printer should be considered from the following aspects:

nThe people want the text and graphics of the printer to be clear and beautiful. The output effect of the printer is:

laser printer> inkjet printer> needle printer

The higher the resolution, the better the output effect, but the price of the printer will increase with the increase of resolution. If you are required to be affordable, you can provide various office documents, charts, especially wide -scale planes, multi -layer printing and other document output, choose a 24 -pin wide line printer to meet the requirements; In terms of type output effect, 300DPI (resolution) or 360DPI inkjet printer and 300DPI or 400DPI laser printer can be used. If the output effect of the photo paper is required, you can choose a hot wax printer or a hot -rise Chinese printer.

2. Print speed

The output speed of the printer is related to work efficiency, so this is also an important choice parameter. The average printing speed of the needle printer is 50 to 200 Chinese characters / second; the inkjet printer is 2 to 4ppm (page / minute); the laser printer is 3 to 6ppm (page / minute).

3. Comprehensive comparison

In first selected a certain type of printer, and then compare the functional prices of different types of printers in the same type of printer, such as printing surfaces, color capabilities, and There are special requirements that require additional accessories, etc. The corresponding price should also be considered. In addition, the consumables and maintenance costs of the printer should also be considered. For example, the ribbon of a needle printer must be replaced after printing 100,000 times per meter; inkjet printer to print 700 pieces of paper ink should be exhausted, and the ink box needs to be replaced; Laser printers will be replaced with a toner cartridge after 2500 to 6000 pages of paper. The number of subsequent investment is also considerable, and you should pay attention when buying.

. The development trend of the printer

Thenexual printer as a traditional output device has been accepted by the majority of domestic users, but its print noise is large, the ribbon consumption is fast, easy Broken needles and printing quality are not as good as inkjet printers and laser printers, which affects its development. However, some users take into account the printer's own price and consumption of consumables, and the special needs of multi -layer media printing, so the needle printer still has some markets. Inkjet printers are more suitable for office automation with their moderate price, superior performance, and compact structures, and the general family and laptop computers. In the near future, the needle printer will be forced to retreat in some special areas such as bank passbooks and bill printing. Laser printers have began to be favored by ordinary users with their high -precision, high speed, low noise, and strong processing functions. As the price decreases and the volume decreases.