Inkjet Printer at a Glance

Printers using inkjet technology was first introduced in the late 1980s and since then the printer becomes very fast in the share of sales in the world of computing. They are the most common type of computer printer for the general consumer due to the low cost, high quality, the ability to print in color of life, and ease of use. Any printer that works on inkjet technology places tiny droplets of ink onto paper to create a text or image. In personal and small business computer market, inkjet printers currently predominate. Inkjets are usually inexpensive, quiet, fast enough, and many models can produce high-quality output. Like most modern technology, today's inkjet built on the progress made by many earlier versions. Among many contributors, Epson, Hewlett-Packard and Canon can claim market share for the development of modern inkjet technology.



In consumer markets around the world, four manufacturers account for the majority of inkjet printer sales: Canon, Hewlett-Packard, Epson, and Lexmark. A typical inkjet printer usually includes inkjet printhead assembly, paper feed assembly, power supply, control circuitry and interface ports. Inkjet printhead assembly that contains several components. One of them is a printhead which is the core of inkjet printers and contains a series of nozzles used to spray drops of ink. Another is a component of inkjet printhead inkjet cartridge or tank. Depending on the manufacturer and model of printer, ink cartridges come in various combinations, such as separate black and color cartridges, color and black in a single cartridge, or even ink cartridges for each color. The bullet from some inkjet printers include the print head itself. The printhead along with inkjet cartridge / s are moved back and forth on paper with a tool called a stepper motor using a special belt.

Some printers have an additional stepper motor to park the print head assembly when the printer is not used, which means that the print head assembly is restricted from accidentally moving. The print head assembly using a stabilizer bar to ensure that accurate and controlled movements. One of the paper feed assembly components is the paper tray or / and the paper feeder. Most inkjet printers have paper trays are loaded into the. Feeders are usually snapped open in a corner at the back of the printer, allowing the paper to be placed in it. Feeders generally do not hold as much paper as the traditional paper tray. A set of rollers pull the paper from the tray or feeder and advance the paper when the print head assembly is ready for another pass after that one more step motor powers the wheels to move the paper right in the increase is needed to ensure a continuous image printed.

While earlier printers often had an external transformer, most printers sold today use a standard power supply is inserted into the printer itself. A number of small but sophisticated circuitry built into the printer to control all aspects of mechanical operations, as well as decode the information sent to the printer from the computer. Connected to a computer with a cable through the interface port. Parallel port interface can be a port, USB port or SCSI port. Parallel port is still used by many printers, but a newer printer using the USB port. Some printers are connected using a serial port or small computer system interface (SCSI) ports. Different types of inkjet printers is based on the methods they use to deliver ink droplets. There are three major inkjet technologies currently used by the printer manufacturers. Thermal bubble technology used by manufacturers like Canon and Hewlett Packard are often referred to as bubble jet. In a thermal inkjet printer, tiny resistors create heat, and heat is evaporated ink to create bubbles.

As the bubble expands, some ink pushed out of the nozzle to the paper. When the bubble collapses, a vacuum is created. This is more interesting ink to the print head from the cartridge. A typical bubble jet print head has 300 or 600 tiny nozzles, and all drops can be fired simultaneously. Thermal inkjet technology is used almost exclusively in the consumer inkjet printer market. The ink used is usually water based, pigment based or dye-based but the print heads are usually produced with less cost than other jet ink technology. Contrary to the technology bubble jet, piezoelectric technology, patented by Epson, PIEZO using crystals. A crystal is located at the back of the ink reservoir of each nossel. Crystal receives a small electrical charge that causes it vibrate. When the crystal vibrates inward, it forces a small amount of ink out of the nozzle. When it vibrates out, it attracts more ink into the reservoir to replace the ink sprayed out.

Continuous inkjet method is used commercially for marking and coding products and packages. The first patent on the idea of the year is 1867, by William Thomson. The first commercial model was introduced in 1951 by Siemens. Continuous inkjet technology, a high-pressure pump directs liquid ink from the reservoir through a microscopic nozzle, creating a flow of continuous ink droplets. A piezoelectric crystal causes the flow of fluid to break into droplets on a regular basis. Ink droplets are subject to the electrostatic field created by electrodes form filling them. Field varies according to the level of drop deflection desired. This produces a controlled, variable electrostatic charge on each drop. Charged droplets are separated by one or more uncharged "guard droplets" to minimize electrostatic repulsion between neighboring droplets. Charged droplets are then directed (deflected) to the receptor material to be printed by electrostatic deflection plates, or allowed to continue undeflected to a collection gutter for reuse.

Continuous inkjet is one of the oldest use of inkjet technology and fairly mature. One of the advantages is a very high speed (~ 50 m / s) of ink droplets, which allows the ink drops to be thrown away to the target. Another advantage is freedom from nozzle clogging as the jet is always used when printing is executed, the application software sends the data to be printed to a printer driver that translates the data into a format that the printer can understand and check to see that the printer is online and available to print. Data sent by a driver from the computer to the printer via the interface connection. Printer receives data from the computer. That stores some data in the buffer. Buffer can range from 512 KB random access memory (RAM) up to 16 MB of RAM, depending on printer model. Buffers useful because they allow the computer to complete the printing process quickly, instead of having to wait for the actual page to print. If the inkjet printer has been idle for a certain period, usually will go through a short cleaning cycle to ensure that the print head clean. Once the cleaning cycle is complete, inkjet printers are ready to start printing. The control circuit activates the paper feed stepper motor.

This involves the gamblers, who ate a piece of paper from paper tray / feeder to the printer. Small trigger mechanism in the tray / feeder is depressed when there is paper in the tray or feeder. If the trigger is not depressed, the inkjet printer lights up "Out of Paper" LED and sends a warning to the computer. After the paper is inserted into the inkjet printer and positioned at the beginning of the page, the print head stepper motor uses the belt to move the print head assembly in the courtyard. Motor merest stopped for a split second each time that the print head sprays dots of ink on the page and then move a little bit before stopping again. These jumps occur so quickly that it looked like a continuous motion. Some of the points made at each stop. It sprays the CMYK (cyan / magenta / yellow / black) color in the amount of time to make other color imaginable. At the end of each completed pass, the paper feed stepper motor advances the paper from one inch pieces. Depending on the model of inkjet printer, the print head back to the beginning of the side yard, or, in many cases, simply turn around and start moving back across the yard like fingerprints. This process continues until the printed page. The time required to print a page can vary widely from printer to printer. This also will vary based on complexity of pages and the size of each image on the page. After printing is complete, the print head is parked. Paper feed rollers rotate the stepper motor to complete the finished pages to push the output tray.

Most inkjet printers today use inkjet ink is a very fast-drying, so you can immediately take the sheet without smudging it. Compared with the previous consumer-oriented printers, inkjet printers have a number of advantages. They are quieter in operation than impact dot matrix printer or a printer daisywheel. They can print finer, smoother details through the printhead higher resolution, and a lot of inkjet printers with photorealistic-quality color printing are widely available. Compared with more expensive technologies such as hot wax, dye sublimation, and laser printers, the inkjet printer has the advantage of no practical heating time and lower cost per page (except when compared to laser printers).

The disadvantage of inkjet print heads, including a thin (prone to clogging) and expensive inkjet cartridges. This usually causes the value-minded consumers to consider laser printers for medium-to-high volume printer applications. Other disadvantages include ink bleeding, where ink was brought to the side away from the desired location by the capillary effect; the result is a muddy appearance on some types of paper. Most inkjet printer manufacturers also sell special clay-treated paper designed to reduce bleeding. Because the ink used in most inkjet cartridges and ink tanks are water-soluble, care must be taken with the documents of inkjet printing to avoid even the smallest drop of water, which can cause severe "blurring" or "walking."

Besides well-known small inkjet printers for home and office, there was a market for professional inkjet printers; a few pages for printing large format, and most of the wide format printing. "Page-width format" means that the print width ranges from about 8.5 "to 37". "Wide format" means that this is a wide inkjet printer range from 24 "to 15". Application of the page-wide inkjet printer for printing high volume business communications that have a lower need for layout and striking colors. Especially with the addition of variable data technology, the page-wide inkjet printers are important in the collection, labeling, and the individual catalogs and newspapers. Application of most wide format inkjet printers is for printing advertising graphics, printing a small application designed by the architect or engineer.

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