Printer

The printer is one of computer output devices, used for computer processing results in related media print. Measure indicators have three bad printers print resolution, the printing speed, and noise.

introduction

The basic information

Will the computer operation result or intermediate results to people can identify the Numbers, letters, symbols and graphics, etc, in accordance with the prescribed format printed on paper equipment. Printer positive light thin short and small, low power consumption, high speed and intelligent direction. Printer [1] is a lot of more phyletic, press printed elements on the paper whether have struck action, points struck with printers nonimpact printers. According to the structure of a printed character, points all homographic inscriptions printers and dot matrix characters printer. According to a line of words on paper form manner, points string printers and line printers. According to the technology employed, points bar, sphere, inkjet type, thermal type, laser type, electrostatic and magnetic floating.the type, light emitting diode such as type printer.

String type whole shape characters struck printers

Bar, sphere, chrysanthemum petal shapes and cup form all belong to the printer classes. All characters are complete with the shape of convex engraved on column, ball word-model carrier and the drive source word-model carrier under the driver could spin, and can move on, under, in order to put the required word-model to print position, through print hammer word-model carrier or word-model carrier, and smote the ribbon swinging itself after printed on paper needed printed characters. This type of printer can print out the high quality fractal characters, the biggest of all the printing speed is about 60 characters per second. Defect is printed character number by word-model carrier contained in the word, can't print limited modulus Chinese characters and image, cannot achieve color printing, and large noise.

String type bitmap struck printers

The print head is made in a row, and driven by electromagnet print needle constitutes. Through the needle crash ribbon, sports on paper printed out a list of points. The print head along the lateral movement can be printed out bitmap, these points constitute the different combination of various characters or graphics. This type of printer can print out nearly all the quality of fractal characters characters. It can be printed words flexible group, graphics and image. Through the use of colored ribbon can also print several color. The printing speed can reach 600 characters per second, simple structure, low cost, can print more copies. Application so popular that has supplanted low, medium-speed line printers. Defect is large noise.

Line-like whole shape characters struck printers

Drum, chain-type, belt type all belong to such. Reverse shape word-model contained in the word drum, medium or word bring, corresponding to the paper line each character position usually set corresponding number of print hammer, when word-model carrier movement will required word-model to printing position, the corresponding print hammer smote word-model and ribbon, will these characters printed on paper. This type of printer ink printing quality. Belt type of printing speed up to 3000 line/cent, drum and chain 20 line/points. Defect is printed character limited number can't print characters and color, large noise.

Line-like dot matrix characters struck printers

Comb type dot matrix of the needle printers. Print components by several levels in a row print needle composition, through the electromagnet drive needle crash ribbon, printed on paper, according to a row of characters lattice point by several row point size constitutes a line characters. The printing speed can reach 500 lines/points. Defect is large noise.

classification

According to principle points

According to the working principle, will printer printer is divided into struck type and nonimpact two kinds big.

String type dot matrix characters nonimpact printers are mainly inkjet printers thermistor type and two. (1) the ink-jet printers. The most widely used printer. The basic principle is charged inkjet fog point after electrode deflection, directly on paper formation required glyph. Its advantage is the characters are formed and image printed points than needle type matrix printer much smaller, thus character point high resolution, print the word of good quality and clear. Can be flexible and convenient change character size and font. Using common printing paper, still can use this typewriter directly in certain products printed words. Characters and graphics form process without abrasion words printed energy little. The printing speed can reach 500 characters per second. Widely used have charge control type (high-pressure type) and random inkjet type (negative pressure type) ink-jet technology, in recent years again appeared ink-jet printing technology dry type. (2) thermal printers. Through seal of pulse current injured-dedicated point resistance to heat produced by thermal papers, make its heated discoloration, thus printed characters and image. Main characteristic is without noise, structure light and small words printed is clear. Defect is slow, the handwriting preservation sex differences.

Line-like dot matrix characters nonimpact printers are mainly laser, electrostatic, magnetic type and light-emitting diodes printers. (1) the laser printer. The source of laser beam through out of information control dot matrix characters acousto-optic deflection is modulated, enter optical system, through the prism of rotating facets of photosensitive drum transverse scan, so in photosensitive drum of optical thin film layer formed on the characters or image of electrostatic dive like, repass enhancement, stamping and fuser, then on paper to obtain the required characters or images. The principal advantage is the printing speed is high, can reach 20000 line/or more points. Print the word of high quality, the noise is small, can use ordinary paper, can be printed character, graphics and image. Because the printing speed is high, macro perspective, just like every print a page, so it is also called page printers. (2) electrostatic printer. Will add directly pulse voltage with a layer of dielectric material of special paper, in order to obtain the electrostatic potential as dielectric, the enhancement, heating fuser forming character and image. Its characteristic is printing quality is high, the writing is not fade, and can generate dive like long-term preservation, the low consumption, without noise, simple and reliable. But need to use special paper, and cost is high. (3) magnetic printers. It is the electronic copy technology application and development. Use magnetic susceptibility medium forming character latent like, don't need high power laser source, its advantage is to humidity and temperature variations not sensitive. Printing speed can reach 8,000 line/points. Simple structure, low cost. (4) light-emitting diodes printers. Besides using light-emitting diode illuminant outside, the working principle and laser printers are similar. Since using light-emitting diodes, reduced cost, reduce the power consumption.

According to work means cent

Divided into matrix printer, needle, inkjet printers, and laser printers printer etc. Needle printer through the printer and paper physical contact to print graphics, and then two characters by jet cartridge to printed character graphic.

According to utility cent

General affairs office and printers

In this application domain, needle printer has occupied dominant position. Due to the needle printer with medium resolution and the printing speed, consumables cheap, but also has a high speed TiaoHang, more copies printed, wide wide print, maintenance is convenient wait for a characteristic, is still office and transactions in print report, invoice etc optimization of model.

Commercial printers

Commercial printers refers to the commercial printing with printers, because this area printing quality requirements is taller, sometimes also dealing with illustrated documentation, therefore, is generally selected high resolution of the laser printer.

Special printer

Special printer generally refers to all micro printer, bankbook printer, horizontal pushing type bill printer, bar code printer, thermal ink printing machine, etc. Used for dedicated system printer.

Household printer

Household printer refers to home computers supporting into the home of printer, according to the family use printer characteristics, current low-grade color ink-jet printer gradually become mainstream products.

Portable printer

Portable printers are commonly used and notebook computer facilities, its small volume, light weight, usable batteries, easy to carry, etc. Network printers

Network printers for network system, to provide print services for most people, so he asked the printer with printing speed, can automatically switched simulation model and network protocol, facilitating the network administrator management, etc.

sharing

The first pace: will the printer connected to the host, open the printer power, through the "control panel" into "printers and fax folder, and in the margin right-click, choose" add printer "the order, open add printer wizard window. Select connection to this computer local printer ", then select "automatic detection and install plug and play the printer" checkbox.

The second step: at the host will be conducting a new printer detection and soon found have been connected good printers, according to the prompt will the printer attached driver disc into cd-rom, installed printer driver, after "printers and fax" folder will appear this printer icon.

Step 3: in a new installation printer icon, right-click on the choice of "sharing" the order, opens the printer properties dialog box, switch to "sharing TAB, select" sharing this printer "and is" Shared name "input box fill in the name of the need to share, for example CompaqIJ, click the" ok "button to complete sharing setting.

Famous brand

1 Dascom (too real) printer (needle dozen industry leader)

2 HP (HP) printer (1939, California, USA, is a world brand)

2 Epson (Epson) printer (world brand)

3 Canon Canon printer (world brand)

4 Brother Brother printer (world famous)

Lenovo lenovo (5) printer (world brand, Chinese famous brand, the world 500 strong enterprises of the)

6 (eis) printer (on world 500 strong, Korean brand enterprise of)

application

Needle printers

Needle printers in a printer history of a long time was occupies an important status from nine needle to 24 needle, can say needle printers history throughout this decades of always. Needle printers are in very long period of time can long popular continuously, that it is extremely low print cost and good usability and documents printed for special purposes are inseparable. Of course, it's very low print quality, large work noise also is it can't adapt high quality, high speed of the commercial printing need root-knot, so now only in Banks, supermarkets for ticket singles seal rarely place can also see it's trail.

Color ink-jet printer

Because of its color printers have good printing effect and the advantages of low and occupied the vast ZhongDiDuan market. Besides ink-jet printer still has more agile paper handling ability, in print medium of choice, ink-jet printer has the certain advantages: can print envelope, letter wait for common medium, still can print various film, photographs, paper, CD covers, paper roll, T-shirt printing paper, and other special medium, in below will as the key introduction.

Laser printers

The laser printer is high-tech development in recent years a new product, is also expected to replace inkjet printers of a kind of type, divided into two black and white and color, it provides us with higher quality, more quickly and more low-cost print mode. Among them the low-end black and white laser printers prices currently has fallen to several hundred dollars, reached the ordinary users an acceptable level. It's printed principle is to use raster image processor produce to print the page bitmaps, and then converts it into electrical signal, and a series of pulse sent to laser emitter, in this series under the control of the laser pulse is regular release. Meanwhile, the reflected beams is receiving the photosensitive drum that photosensitive. Laser emission is produced a point, laser don't launch is blank, thus by a receiver printed line points. Then the receiver rotation for a short distance continue to repeat the above fixed operation. When the paper after photosensitive drum, on the drum of colorants would move to paper, shape of a page of the bitmap. Finally, when paper after a pair of heating roller, colorants heated melting, fixed in the paper, can finish the whole process of printed, this whole process is accurate and efficient. Although laser printers price than ink-jet printer more expensive, but from single page to print cost of speaking, laser printers are a lot cheaper. But color laser printer price is high, almost in yuan fluctuation, application scope is narrower, difficult to be ordinary users accept in this was but many are introduced.

other

In addition to the above three kinds of the most common printer, besides the thermal printer and significant surface such as printers several applied in fields of printer machine. Thermal printer is to use transparent dye printing, it's advantage lies in the professional high quality images printing to print out nearly photos of a continuous tone images, commonly used for prepress and professional graphics output. Substantially, its surface printers print principle and ink-jet printer basic same, but print width can usually to 24 inches (61cm) above. Its main purpose has been centered on the engineering and architecture field. But as the ink durability of improving and graphics resolution increases dramatically surface printers are increasingly applied in advertising, photograph considerably, pictorial art and interior decoration, the adornment such as publicity field, again become printer familial in an important player. America is a professional manufacturer ZCorp 3d printers, production global fastest 3d printers, is the only true color 3d printers, coupled with very low consumables use cost make its global many users get the favour of rapid prototyping machines. 2Objet Israel PolyJet technology, Eden series 3d printers, 16 microns ultra-high resolution, FullCure series materials, is the highest in the world now forming precision (a thick layer 0.016 mm) only use the most simple 3d printing rp machine