Four hidden defects never solved by inkjet printers
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Compared to home inkjet printers, commercial inkjet printers have higher print load capabilities, faster print speeds, better expandability, and greater consumable capacity. Color inkjet printers for business office use text-based printing, and sometimes also print some simple graphics and design drawings, etc. Users are more concerned about the printer's speed and text print quality. Because commercial jet printing uses a larger memory and multi-nozzle head technology, its actual printing speed is generally twice that of domestic inkjet printers. Commercial jet printing uses a larger capacity ink cartridge, so that the ink volume is 2 to 3 times that of an ordinary ink cartridge, plus the color ink cartridges/ink heads can be replaced individually. The cost of printing a single page of a commercial ink jet is naturally higher than that of a home jet. A lot lower. In addition, commercial inkjet has a higher print load and expandability than home inkjet. This means that commercial jetting is more reliable and the work load that can be undertaken is greater.
The home market is also a market for inkjet printers. With the popularity of computers, a single computer application is no longer able to meet the needs of people living and working. The modern lifestyle, the promotion of digital images, has driven home users' needs for printers. Print network novels, essays, various documents, design drawings, save pictures, print photos and many other applications. The combination of peripherals such as digital cameras, printers, and other peripherals has added a lot of fun to home users' lives. Some professionals predict that in the next few years, the home user market will surpass the business user market and become the mainstream application field in the printing market.
Although the status and market share of inkjet printers are getting higher and higher, despite the major manufacturers' transformation of inkjet printer technologies in 2010, several major defects in inkjet printers have never been effectively improved.
Printhead plugs are the biggest headache for users of inkjet printers. Many users even talk about “plugging†the color change. The plugging problem has become, to a certain extent, the biggest enemy that hinders the continued popularity of inkjet printers. The reason why the print head plug is difficult to control is that the cause of the plug is caused by air. The print head is not properly sealed and stored for a long time after being reset. The water is excessively evaporated and the ink particles are dried at the fine print head tip. , so that the ink can not be ejected properly; or different inks mixed with each other, resulting in a chemical reaction, usually appears as a broken line, color is missing, blurred writing and even unable to print properly and other failures. Inkjet printer "plug" classification: can be roughly divided into soft plug, hard plug two major categories.
The plug of soft plug refers to the disconnection fault caused by the large viscosity of the ink on the nozzle due to various reasons. Sometimes only attached to the surface of the nozzle of the ink outlet, generally the original ink can be recovered after many times of cleaning. The advantage is that the operation is simple, fast, without any physical damage; the disadvantage is that the use of high cost, more waste of ink. Use the print head cleaning function in the printer driver's utilities. The advantage is that the operation is simple and fast; the disadvantage is that the cleaning effect is not ideal.
It is generally not easy to clean more than 3 times. When the printer “plug†is not serious, it should be flushed within three times. If it is still unable to open three times, it means that the plug is more serious, and the number of cleanings is not necessarily effective. It is unnecessary to waste a lot of expensive ink. At this time, further processing should be carried out depending on the specific circumstances. At the same time, due to the phenomenon of “air-blocking†between the ink cartridge (such as the sponge-filled type) and the print head, a small amount of irregular breaks will occur. At this time, it is not necessary to repeatedly clean, sometimes after a period of time, it can be restarted. Normal use. The use of ink-jet printer users should not mix ink, new ink can not be rushed to add ink cartridges, first use a clean disposable syringe to inhale some ink in a bright place to observe carefully to see if there is no suspended matter in the ink, if there is suspended matter Can not be mixed.
For a printer with better ink jet print plug handling, Canon, we have used inkjet printers, Canon printers rarely appear plugging phenomenon, especially models such as MX7600 and iP4680, it is not easy to place a year without Plugging phenomenon.
Print head plugs naturally have to deal with. The most common measure at this time is to clean the print head, but many users will find that the cleaning will consume a lot of ink, and sometimes even flushing a box of ink cannot repair the plugs. The ink is wasted. In addition, many printers will automatically perform printhead flushing before or after work. For example, frequent printer on/off switching will detect a drop in ink volume. Either way, this is due to the principle of the inkjet printer and the structure of the print head. Although it has experienced many years of technological research and development and innovation, the proportion of blocked print heads has been greatly reduced, but manufacturers can not guarantee that inkjet printers The print head does not jam when it is not used for a long time. Therefore, from a technical point of view, flushing the print head consumes ink to a certain extent due to product structure and design issues, not due to the user's cause.
Nowadays, more and more manufacturers will write these words when they promote products: "...a split-type ink cartridge design will be used to achieve the same color change and effectively save ink...". For cost-conscious domestic users, Ink Saver has an infinite appeal. In the beginning of the split cartridge design from the high-end models to the low-end models popular, has attracted a lot of attention of users, generally believe that split cartridges will be a direction for the development of low-end color inkjet printers. It seems that split cartridge design is a big step forward, especially for low-end four- or six-color models. The split-type cartridge design effectively avoids the waste of monochromatic ink, but it is used in many ways. In the color ink jet printer designed by the ink cartridge, after the ink of a certain color is lighted, we replace the ink cartridge. After the replacement is completed, the ink of other colors will also be found to have different degrees of decline.
This is because every time the ink cartridge is replaced, the printer will automatically perform flushing of the print head and ink injection in the pipeline. This process can effectively ensure the consistency of the ink in the pipeline before and after, avoiding the two inks in the particles. The color shift caused by the subtle differences in the distribution, but due to the user's uncontrollable process, flushing the print head caused a large amount of waste ink.
Nowadays, many printers provide chips that do not have printheads flushed at startup, but they are still a permanent solution, and the root cause of the real waste of ink is still at the manufacturers.
Printers are not a one-time capital investment hardware device, so the printing cost naturally becomes one of the factors that must be considered when purchasing a printer. The printing costs mainly include ink cartridges and printing paper, so the type of ink cartridges should be taken into consideration when purchasing. If the printer prints black with black ink, it can save the relatively high price of the color ink cartridge, which is beneficial to save the printing cost; while the low-grade single ink cartridge printer does not have black ink, and the black printing is through color synthesis. In addition, most printers have good results in printing black and white text on plain paper, but it is necessary to print rich-colored images, especially the fine print of pictures, on professional paper, which means increased printing costs.
The ink of inkjet printers has long been known as the world's most expensive liquid, and its high printing cost is staggering. This has caused a large number of printer users to discontinue their purchases soon after they have purchased them. This situation has eased on some HP inkjet printers, such as the K109a. In fact, the HP K109a has no technical content to reduce the cost of printing a single page. There are two ways: First, increase the capacity of the ink in the ink cartridge, and second, drastically reduce the price of the ink cartridge. Because HP inkjet printers use the thermal foam printing technology, two-thirds of the internal volume of the ink cartridge is occupied by the sponge. By increasing the capacity of the ink, there will be great resistance. At this time, the price reduction is the best method. .
When the HP D730 and F735 were just released, we also did a cost test on it, but at the time the cartridge was priced at ¥88, which resulted in a single-page cost data of ¥0.11. Now, the price of a single cartridge of the 703 cartridge set used by the K109a (which is also the cartridge used by the D730 and the F735) has fallen to ¥79 on a famous domestic mall, but it can also be purchased at ¥70 on the retail market. This in turn reduces the cost of single-page printing. In the future, as long as HP is willing, it can reduce printing costs to any level.
However, these low-cost products are still concentrated in some individual models. This has caused the low-cost machines not to be popularized. Users are still waiting to see this, and the market’s prosperous compatible ink cartridges and CISS provide users with a New way to save money.
As far as the printing device itself is concerned, the two most important performances are speed and quality. These two factors make up the overall performance of the printer. Like the horizontal and vertical coordinates, the position of a product in the field of printing equipment is marked. If print quality is a subjective impression, and everyone has different standards, then the print speed is completely an objective number, and the numbers are very strict and do not change with the users themselves. The test of printing speed will be affected by the environment and paper, and will cause slight differences in the final calculation. This is unavoidable and it is within the user's acceptable range. In actual testing, it often happens that the printing speed is different from the nominal value by a hundred thousand miles. For example, a nominal 20 ppm printer may only barely reach 8 ppm in our test results.
This is because: First, the manufacturer's nominal value generally does not disclose the printing environment, is the printer can reach the highest speed in the best operating environment, and we are testing in the standard mode, is the average user in the ordinary office The speed of printing ordinary business documents under the environment emphasizes the universality of speed. Second, manufacturers will use a brand media more suitable for the printer to test, such as HP printers using HP special media, the speed and accuracy can be significantly improved, this point in the bar code photo paper, but because of the brand Media prices are high, more users will choose third-party media, and we are using third-party media for testing, more in line with the average user's daily printing standards.
When Epson introduced the C110, it stated on its official website: "The highest print speed claimed by the manufacturer is often not practical in the actual printing process, because in the highest speed mode, the printed results are relatively poor and cannot be used in practice. Business work.†This is also the first time in the industry that print manufacturers have admitted that the nominal print speed is practically meaningless and not too great, because the decrease in print quality and print accuracy due to faster print speeds is often unacceptable to users. For most manufacturers, publishing the nominal value of printing speed is just a common practice, in order to provide users with a selection of standards, manufacturers usually publish the highest speed (ie, nominal value), the highest accuracy (printing) Resolution), but usually does not tell the user that these values ​​are obtained separately.