Technological innovation speeds up the competition of the three major inkjet printing technologies

With the release of the HP Pro X series of business inkjet printers, HP's new page-wide inkjet printing technology has also been announced. Unlike Canon FINE print head technology and Epson micro piezoelectric print head technology, HP page-wide printing technology can be seen as evolved from high-end digital printing presses. At present, most of the mainstream inkjet printers on the market use Canon FINE and Epson micro piezoelectric printing technologies. However, HP launched the Pro X series of products, and this pattern has changed. Can the page-width printhead become the third type? Mature inkjet printing technology has yet to be tested by the market. However, what is the difference between these three different types of printing technology, and how does it work? Presumably some friends don't understand it well, and then the editor will elaborate for everyone.

● HP page width print head technology

In fact, HP is not the first printer manufacturer to introduce a page-wide printhead, but it is the manufacturer that applies this concept most comprehensively and defines it most accurately. HP Pro X series printers position themselves as high-end business inkjet printers, breaking the previous rule that laser printers dominated business office printing. With an output speed of 70ppm, they launched a powerful challenge to laser printers from the front.
What makes HP Pro X series printers so powerful? The secret behind this lies in HP's new page-width printhead. In simple terms, the print head of an ordinary inkjet printer is very small, and the volume is close to that of a mouse. During the printing process, the print head moves in parallel at high speed, while the paper moves longitudinally, so that ink is sprayed on the paper to complete the printing work. In the past, inkjet printers wanted to increase the printing speed. There are only two methods. One is to increase the area of ​​the print head contacting the paper, that is, to increase the nozzle of the print head. The other is to speed up the speed of the print head. Solve the reason for the slow speed of the inkjet printer.

The page width printheads used in HP Pro X series printers are like horizontally elongated printheads, which can print one line at a time without moving the printheads in parallel, which significantly increases the printing speed. The laser printer uses this imaging principle to complete one-line printing at a time, but the laser printer uses a photosensitive drum and toner, while the HP Pro X printer uses a page-wide printhead and large-capacity ink cartridges.

We can see that the ink cartridge of HP Pro X576dw is very different from the past, and the length is close to the toner cartridge of A4 format laser printer. And such a long ink cartridge must have a print head of the same length for printing, but the length of the print head means that the number of nozzles increases geometrically, and the difficulty in production and maintenance will be greatly increased. The biggest problem faced by the print head. If the printer is not used for a long time, the nozzle will evaporate and solidify due to the moisture of the remaining ink, causing clogging. The cost of replacement can be imagined. To this end, HP uses an internal fully sealed structure to reduce the rate of moisture evaporation. At the same time, the HP Pro X series printers also have a built-in maintenance box, which wipes out residual ink with reusable roll paper to reduce the chance of nozzle clogging. Finally, HP positioned the Pro X series printers for business users. It may also be considered that the print volume of home users is not large, which will cause the printer to be unused for a long time, resulting in clogged nozzles, and the large print volume of business users can allow The printer is always working, which also reduces the chance of nozzle clogging.

Through the launch of Pro X series printers by HP this time, we have seen a development direction of future inkjet printers, that is, the use of page-width printhead technology. Seeking common ground while reserving differences with laser printers, and taking advantage of them, it can be said that page-wide printing technology has brought a new definition to inkjet printers, and also made laser printers that have dominated business printing for many years felt unprecedented challenges.

● Canon FINE print head technology

Canon FINE print head technology uses traditional thermal foaming technology, the basic principle is to heat the ink droplets and then eject through the nozzle. In fact, the HP Pro X series of page-wide printheads and Canon FINE printheads work on the same principle. Canon has very advanced semiconductor manufacturing technology, and the laser head is precisely cut to manufacture the print head. In this way, tiny ink droplets can be accurately printed on the surface of the medium, and the speed of nozzles ejecting ink droplets is accelerated, thereby speeding up printing.

However, heating the ink droplets bears certain risks. First of all, the heating method will leave the print head in a high temperature and high pressure working state for a long time, which is prone to problems such as damage to the print head and splashing of ink droplets. Second, the requirements for ink are stricter. Due to the heating of the ink and the need to be ejected through the extremely precise print head, the use of non-original consumables will greatly reduce the life of the print head, even the use of non-original consumables will be damaged, replacement and maintenance are very expensive. Finally, since the ink is foamed and sprayed onto the medium, how to control the direction and volume of the ink droplet ejection, so that the ink droplet is accurately printed to the position where it should be printed, is a knowledge.

However, thermal foaming technology has been born for a long time, and Canon is the founder of this technology. The durability and accuracy of its FINE print head are beyond doubt. In the market, the reputation and market share of Canon inkjet printers have been good. The Canon FINE print head has proved with facts that even if there is a risk, it can make things perfect.

● Epson Micro Piezo Printhead

The first to introduce piezoelectric printing technology was not Epson, but Siemens. In 1972, Siemens introduced piezoelectric drop-on-demand inkjet printing technology. However, Epson carried forward this technology, and then launched the micro-piezo print head, which has been widely praised to date. Epson is committed to promoting inkjet printing products. All printers under the company use inkjet printing technology, and the printheads all use Epson micro piezoelectric printheads. Friends who have used it will have precise printing effects and fast output speeds for Epson printers. impression.

The micro piezoelectric technology is different from the thermal foaming technology. It is a technology for printing at normal temperature and pressure. There are many tiny piezoelectric ceramics near the nozzle of the micro piezoelectric printhead, which deforms itself when voltage is applied, and deforms with the change of image information voltage, so that the ink droplets in the nozzle are evenly ejected in a very stable form.

The Epson ink cartridge printer uses a large ink cartridge design. The 4000-page black and white ink cartridge design declares to home users that they do not need to add ink for life, and at the same time, the print head does not need to be replaced, and the fastest black and white output speed can reach 33ppm. The good durability, high printing accuracy and high printing speed of Epson micro piezoelectric printheads are most clearly reflected in Epson ink cartridge printers.

However, the micro-piezo print head is also faced with the same plugging problem. When the plugging problem occurs, a large amount of ink needs to be cleaned, resulting in a waste of ink, and each flushing time will be longer.

● Which of the three major technologies is better or worse is up to time

Through the introduction of this article, I believe many friends have a certain understanding of the technical principles of the three mainstream inkjet printers currently on the market. Printer manufacturers are so painstaking in their efforts to continuously upgrade and improve existing technologies and develop new technologies at the same time. We believe not only to catch up with competitors, but also to bring better printing products and printing experience to our users.

The development of inkjet printers has a history of decades. The three major inkjet printer giants, HP, Canon, and Epson each have unique technologies. Now inkjet printers are moving towards "higher, faster, and stronger". The goal development, higher printing accuracy, faster printing speed, and stronger after-sales service have also become the goals of all print manufacturers to work together. This goal will remain unchanged regardless of the technology adopted by the new products introduced by the manufacturers.

Summary: The launch of the new page-width print head by HP this time has further aggravated the situation of inkjet printer disputes, and has ignited the war into the field of laser printers. However, regardless of HP's page-width printheads, or traditional Canon FINE printheads and Epson micropiezo printheads, they are developing in a faster and more perfect direction. The editor believes that this situation of separatism is conducive to the continuous development of the printer industry, and the scene of a single big family will only eventually decline.

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