With the advent of the on-demand era, the digital printing technology of "printing one sheet, different sheets" found a broad stage. Whether it is inkjet digital printing equipment or laser digital printing equipment, it has become an emerging choice to meet the short-term and personalized needs in the on-demand era. Business quick printing, office printing, architectural graphics, advertising design, on-demand publishing, postal mail, telecommunications services, financial bills, short version packaging, digital imaging and other fields, and even traditional printing companies have turned their trust in the eyes Professional digital printers and digital printing machines.
Laser-based digital printing specializes in high-quality applications
Like other industries, Chinese users have different levels of digital printing. In response to this, Fuji Xerox, HP, Kodak and Océ, Xeikon, OKI, Canon, IBM, Konica Minolta, Nipson, etc. have launched color, black and white professional digital printers and digital printers with different productivity, different speeds, and different precisions. Printing machines, to meet the needs of different industries, presenting the situation of "a hundred flowers blooming and a hundred schools of thought contend".
Judging from the mainstream products on the market today, the technical highlights of today's digital printers and digital printers are mainly reflected in the following aspects.
1. The color and precision of the image are more professional
Whether it is used for graphic output or for on-demand publishing, digital printers and digital printing machines require their colors to be more professional and require higher accuracy. Therefore, today's mainstream equipment expands the color space through advanced ink and ink supply units other than four colors, and also uses screening technology to enhance the fineness of the image.
2. Large paper capacity and advanced paper conveying technology
In a professional production environment, in order to improve production efficiency, in addition to the speed of the output equipment, it must also have the corresponding paper supply capacity to cooperate. Therefore, many manufacturers have used multiple cartons to arm their equipment, which can not only realize unattended printing, but also mixed paper printing, and use advanced paper feeding technology to avoid downtime caused by paper jams. .
3. Closer integration with print server and process software
Compared with ordinary laser printers, the outstanding use of digital printers and digital printing machines for professional production lies in the close integration with print servers and process software. Not only color management, but also print job management, and support variable data printing.
For example, users of Fuji Xerox DocuColor 8000 and iGen3 can choose from Kodak Spire and EFI Fiery color print servers in addition to Fuji Xerox DocuSP. These print servers have outstanding color management capabilities and can be seamlessly integrated into FreeFlow Print workflow. Fuji Xerox FreeFlow digital workflow collection helps customers integrate and connect workflows, improve job input, and make operations more automated.
The digital printers in Founder's digital printing system are also having professional performance due to the cooperation of Founder's digital workflow software.
4. Enhanced online binding
When users use digital printers and digital printers to print books, brochures, etc., they hope to achieve online binding and finishing like traditional printing. Therefore, many manufacturers began to adopt a modular structure, connecting the output device and the post-press equipment to form a complete solution, including binding, folding, punching, and cover insertion. There are not only general saddle stitching and wireless binding, but also flat binding and complex hot-melt binding.
In addition, the printing media range of these devices has been further expanded, and the maximum paper weight can even reach 350g / m2, and can be imaged on various types of media.
In short, these professional digital printers and digital printers reflect their professionalism through the improvement and improvement of various aspects of performance, which is also the most important reason for the popularity of digital printing technology.
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Inkjet digital printer technology diversification to meet a variety of needs
At present, the inkjet printing systems on the market can be divided into three different types of products according to different applications: large-format inkjet printers represented by Epson, HP, Canon, etc., and Kodak Wanyin and Jieming Digital as Representative high-speed continuous inkjet printing system and ultra-large format inkjet digital printer represented by Sai Angel.
Since the 1990s, large-format inkjet printing technology has been widely used in the fields of imaging, advertising, display, map printing, and printing due to its advantages in printing colors and print media compatibility, especially in printing In the industry, the perfect combination of inkjet printing equipment and digital proofing software makes digital proofing no longer a castle in the sky. The continuous inkjet printing system is also widely used for printing short-form, variable information and other content, such as labels, barcodes, cards, and even on-demand newspapers because of its advantages in variable data printing and high speed. The ultra-large format inkjet digital printing machine has become a new force that can replace traditional screen printing in the markets of POP / POS, outdoor advertising, interior decoration, indoor and outdoor signs, and large-scale artworks.
1. Large format inkjet printers: technology and demand interaction
Large-format inkjet printers, with their advantages in printing accuracy, printing colors, and printing applicability, have become the protagonists of advertising printing, digital imaging, map printing, and other fields. The continuous increase in customer demand in these fields has also prompted Manufacturers of large-format inkjet printers have increased their research and development efforts to meet customer needs and build brand advantages with core technologies.
At present, the main technical highlights of large format printers are highlighted in ink technology, inkjet head technology, professional color technology and so on.
(1) Ink technology
When it comes to ink for large-format inkjet printers, Epson must be mentioned. From "Century Rainbow" to "Century Rainbow K3" to "Century Color", the number of inks has reached 8 at most, each The introduction of various pigment inks has made Epson's inkjet printing products more widely used. In particular, the 8-color "Century Rainbow K3" pigment ink adds light black ink on the basis of cyan, light cyan, magenta, light magenta, yellow, light black, and photo black to achieve level 3 black ink printing, greatly improving In addition to the gray balance, in addition to making the color gamut wider, it can also fully display the dark tone levels and details in black and white pictures.
In terms of pigment ink, Canon's unique "Pg ink" also has excellent color expression and durability.
The HP Vivera dye ink used by HP ’s large format inkjet printers, combined with 6-color ink printing technology, reproduces richer colors, deeper blacks, continuous tones, and consistent gloss. When used in conjunction with HP Advanced Photo Paper, the output image has extraordinary resistance to fading, and can be stored for up to 82 years without fading.
Quantum inks used in Kodak Encad large format inkjet printers use dye-based and pigment-based solutions to meet different applications indoors and outdoors, providing long-lasting and rich colors.
(2) Inkjet head technology
As the core of large-format inkjet, inkjet head printing technology has received special attention from manufacturers. Whether it is piezoelectric printing technology or thermal foaming technology, you can find your own use. The intelligent ink drop conversion technology can precisely control the size of the ink drop, so that the smallest ink drop can reach 3.5 to 4 picoliters, which greatly reduces the graininess of the printed work and ensures excellent printing accuracy.
(3) Professional color technology
With the wide application of large format printers in the high-end field, its manufacturers also attach great importance to the introduction of professional color technology. Taking HP as an example, in its products, automatic closed-loop color calibration, fourth-generation "Full Picture" color layering technology, black point compensation and screen printing matching technology, automatic Pantone calibration, CMYK Plus and offset printing simulation technology, etc. Can provide accurate color and best color consistency for printing. This is also an important reason why digital proofing has been gradually accepted by the printing industry in recent years.
2. Continuous inkjet printer: combined with high speed on demand
Continuous inkjet printing systems are mostly upgradeable and integrated systems. It can be configured on traditional web or sheet-fed printing presses, form printing presses, label printing presses, to achieve the perfect combination of digital printing and traditional printing, and to show its strength in the on-demand printing field that requires high speed and variable content.
Kodak's high-speed digital printing system includes V-series products with full-page printing and D-series products with partial-page printing. It is widely used in personalized direct mail business letters, bills and business documents, books and product catalogs, Address and lottery printing.
The jet printing system of Jieming Digital adopts thermal inkjet technology, no need to clean the nozzle, no maintenance cost, no wearing parts, not only to ensure the quality of the printing, but also to achieve zero failure, no maintenance, greatly reducing the cost of use. The on-site upgrade function of the print head not only protects the user's initial investment, but also gradually meets the user's increasing production load and new printing requirements.
3. Ultra-large format inkjet printer: industrialization and flexibility complement each other
In the past, for large-format prints such as outdoor billboards, wall advertisements, and body advertisements, people often resorted to screen printing. However, screen printing also has problems in terms of cost and speed. Today, ultra-large format inkjet digital printers solve these problems well.
Sai Angel's ultra-large format inkjet digital printing machine can not only realize short-run printing, but also print directly on corrugated cardboard and various hard materials, to achieve high-precision industrial production, and it is a digital packaging market, indoor and outdoor advertising market. New business opportunities.
Recently, Agfa announced its entry into the inkjet digital printing market, and the digital printer Pajet JetPrint of Swiss Rosen Company represented by Yanjingxing also has a better performance in the industrialized market.
In general, inkjet printing systems and inkjet printing systems have followed the advancement of technology, and their application fields have been expanding. Different manufacturers, different brands, and different technologies have painted brilliant colors for social life.
For example, the HP Indigo Press 5000 uses high-precision imaging technology and the unique HP ElectroInk liquid electronic ink, so that the printing resolution is up to 812dpi × 812dpi, and the number of screen lines is up to 230 lines / inch. Through the HP IndiChrome on-line and off-line 5 color, 6 color or 7 color spot color matching system, the color space of four-color printing is expanded.
Kodak NexPress 2100 developed the fifth imaging unit to form a spot color application scheme, a coating application scheme and a glazing application scheme, which not only reproduces Pantone colors, but also helps users improve spot color effects.
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