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At present, the productivity benefits of inkjet printing technology with high speed shows a rapid expanding trends, however, the precondition of which is its high quality presswork. Therefore, one of the top priorities now is to find better way to evaluate the presswork quality scientifically and effectively. A new parameter, ink dot fidelity, was introduced as an evaluation criterion to study the presswork quality in this paper. The four evident effect factors that fluctuated more during the printing process were chosen, such as the paper transmission speed, the print head (nozzle) voltage, the ink cartridge pressure and the distance between the print head and paper, to make the scientific orthogonal experiment design. The fluctuation rules of the ink dot fidelity corresponding to each effecting factors were obtained through intuitively analyzing of the orthogonal tables and the effect curves. Based on the experiment, the test data were fitted and optimized by using the mathematical analysis software of MATLAB and the least-square method. And then the mathematical model for ink dot fidelity and these affecting factors were created. Finally, the user interface (GUI) design platform was developed to improve the man-machine communication and the ink dot fidelity, or the presswork quality.

Graphic communications industry, or printing industry, has a tradition of more than one thousand years. Putting ink on paper, or on some other substrates, is the basic form of printing, although the industry has been modernizing by the up-to-date science and technology such as internet communication and digital printing, etc., since the info-tech revolution of recent decades. Printing jobs are still in much need today and printing presses everywhere are keeping busy with a steady influx of orders everyday. As a professor working in the graphic communications field, facing some perception and confusions among everyone from government and corporations to environmental groups and mums and dads that paper and print is 'bad' for the environment and that printed communications aren't effective, we have responsibilities to study the present situation of this industry in the environment-oriented world and try as much as possible to find ways to make our industry become greener. Firstly, we need to answer if the printing communication is not a green medium comparing to other methods of communication. If the answer is positive, we need to defense the green position of the graphic communications industry. Secondly, to troubleshoot the pollution problems of the printing production processes, so that, thirdly, to find ways to make the industry become an environment-friendly one.

In order to study the color matching effect of ink-jet printing press under different color management systems. I applied EFI and ORIS series color management soft wares separately to the same Epson ink-jet printer and optimized the proofing with exploring the most reasonable settings. After that, I will compare the gamut and color difference in a special color management module, and also make a contrast with a standard color gamut to check the color matching effect. The results show that the average color differences of the two soft wares are all below 1.0. However, differences measured by ORIS is lower, falling to 0.5 only, which implies the proofing under ORIS color management is more similar to the presswork and more stable.

With the gradually maturing super-speed inkjet printing technology, people are pursuing steadier and higher speed as well as better quality presswork for the sake of increasing economic benefit. To provide an overview of the velocity fluctuation of the inkjet machine platform and the cyclical fluctuation of the incremental encoder, external clock and corresponding internal clock were applied separately to print the equally spaced lines under the same platform speed. Then a magnifier was used to measure distance between the lines, according to which the velocity fluctuation mentioned above can be obtained. Thus conclusion can be drawn from the fluctuation analysis that the velocity cycle of platform is 60mm, however, number of those produced by the incremental encoder is up to 3, including 60mm influenced by the platform, 300mm produced by the perimeter of encoders pressure wheel and 600mm produced by the circumference of dance roller. Furthermore, dance roller contributes more influence on narrow coated paper. Through this research, inkjet technician can do directional compensation for every factors to reduce the fluctuation.

Graphic communications industry has a tradition of more than one thousand years. Not since the invention of movable metal type by Gutenberg in 1450 has the communication landscape been shaken at its foundation as today, when print media face competition from new and novel forms of visual communication. In this paper, the critical analysis and study is made as to why printing has weathered the onslaught of new forms of communication in the past and if, in fact, print media will yet again be able to prevail over radically different methods of dissemi¬nating information. Although printing jobs are still in much need today and printing presses everywhere are keeping busy with a steady influx of orders everyday, people in the graphic communications industry should adapt to the new changes of the internet ages and make fully use of print communications to prevail over different kinds of new media. Printed Electronics and postpress finishing also play key roles in creating new functional print products and adding more value to print media.

The electricity changing models for the energy supply of electric vehicles are described and introduced. A more suitable method of fast replacing battery of electric vehicles is found and the practical method and process of quickly replacing battery are focused as a major topic. The changing equipment used is studied and described while the efficiency of electrical changing equipments is discussed. The reserve number of batteries in power charging plant and the number of vehicles that each quickly changing device could service are studied and derived.

Today’s industrial design has gone beyond the traditional product design. China is in the transfer process from the world's manufacturing plant to the world's manufacturing center. Green design is the basis of access to green products, and has become one of the hot researches in design areas. The results show that the design phase determines the 70% to 80% of manufacturing cost, while the design itself accounts for only 10% of the total cost. The importance of the roll of design to product is still increasing if considering the environmental factors. Because the level of ecological damage caused by the product design is far greater than the level of ecological damage caused by the design process itself, only in the design stage should the "green level" of products be taken as a design target, the desired design result could be achieved, which is one of the goal of ergonomics. In today's information society, the graphic communications industry is charged with an irreplaceable task of information manufacture and dissemination. A variety of devices (including electronic, optical, mechanical equipment and instruments, and even household facilities and equipment, etc.) used by the modern graphic communications industry need the direct contact, operation or use of the operator. Design and manufacture of these devices need to apply modern ergonomic design theory and research results. In this paper, the importance of ergonomics, the features and research aspects of green design, developing trends of ergonomics, and the application of ergonomics in the graphic communications industry are described.

Today’s industrial design has gone beyond the traditional product design. China is in the transfer process from the world's manufacturing plant to the world's manufacturing center. Chinese manufacturing industry is transiting from mass production and mass marketing to brand competition and design competition; China’s industrial design is moving from design for products and design for industrial enterprises to design for the market and users, and from basic industries- and technology-oriented model to sales- and marketing-oriented and brand- and user-oriented model. The importance of implementing user-friendly design principles and applying ergonomic principles to sustainable design in Industrial design is increasingly becoming the consensus of the industries. In today's information society, the media industry is charged with an irreplaceable task of information manufacture and dissemination. A variety of devices (including electronic, optical, mechanical equipment and instruments, and even household facilities and equipment, etc.) used by the modern media industry need the direct contact, operation or use of the operator. Design and manufacture of these devices need to apply modern ergonomic design theory and research results. In this paper, the importance of ergonomics, the features and research aspects of modern ergonomics, developing trends of ergonomics, and the application of ergonomics in the media industry are described.

By analyzing various kinds of gripper systems of different sheet-fed offset presses, the under-table swing-arm system, with a fixed axis, has the advantages of meeting high-speed press running requirement, keeping longer dwell time of printing sheets, helping improve print registration, and hence in favor of assuring HIFI print quality while having high press output. The dynamic optimization design of the under-table swing-arm system is vital to the higher performance of the system on the state of the art press machines. Through dynamic analysis of the gripper system, the way of dynamic optimization design and its correspondent formulas are derived in this paper.