Introduction
　
　This year, the Society of Electrophotography of Japan (SEPJ) sees the 40th anniversary since 1958. SEPJ is proud great deal of world-wide contributions in the image science and hard copy technology fields. Taking this opportunity, we have an International Conference on imaging science and technologies named "Pan-Pacific Imaging Conference/Japan Hardcopy '98 (PPIC/JH'98) to celebrate the 40th anniversary with extending the SEPJ annual conference, Japan Hardcopy '98, to establish a more strong network with Asia, North America and European countries.
　The PPIC/JH'98 Conference committee cordially invite you to join us and let discuss and consider the future imaging and hardcopy technologies with us. The Conference affords all of participants a good opportunity to learn about the latest technical development and to find the future direction of imaging science and technologies.
　The conference will consist of everyday keynote papers, valuable reviews on the state-of-arts in each country of Pan-Pacific rim, invited technical and contributed poster presentations. All contributed technical papers will be presented in 2 hour poster session with 5 min oral preview. Official language is English.
　
Conference Place
　The conference site is near JR Tokyo Station.
　A Hall/International Conference Room, JA Building 9F/8F.
　1-8-3 Ohtemachi, Chiyoda-ku, Tokyo, Japan
　Tel: +81-3-3245-7456

Hotel
　A special block of rooms at a discounted rate is being
　at the Arcadia Ichigaya Hotel for PPIC/JH'98 attendees.
　Please reserve your room until June 15, 1998.
　Hotel name and address are as following:
　Hotel name : Arcadia Ichigaya Hotel (Shigaku Kaikan)
　Address : 4-2-25 Kudan-kita, Chiyoda-ku, Tokyo 102, Japan
　Tel : +81-3-3261-9921, Fax : +81-3-3261-9931
　Access: Hotel is near Ichigaya JR station. It takes about 30 min.
　by train and walk from hotel to conference site.

　For overseas attendees, therefore, SEPJ recommends another 　
　Hotel, which locates near the JR Tokyo station and the Conference 　site (JA Hall).
　　　　　Marunouchi Hotel:
　Address : 6-3 Marunouchi1-chome, Chiyoda-ku, Tokyo 100 Japan
　　Tel. +81-3-3215-2151, Fax +81-3-3215-8036
　ca. \13,000 for single use/one night (Tax not included）
　At the moment, they have rooms during the Conference. Please 　
　make a contact to the Hotel directly as soon as possible if you
　need.


　If you have any questions, please do not hesitate to contact Prof. S. Ohno,
　Vice Conference Chair (e-mail: shin@avctl.cpg.sony.co.jp) in your convenience.
　
PPIC/JH' 98 Schedule
　
July 15 (Wednesday)
JA Hall (9F) Int'l Conference Room (8F)
9:40 Keynote 1
Regional Reports
11:20 Toner and Developer Rewritable Imaging
Lunch Time
1:35 Toner and Developer Direct Marking 1 (Thermal, Electronic)
3:10 EP Process & Device Direct Marking 2 (Ink Jet)
4:20 Ecology and Environmental Issue
　
July 16 (Thursday)
　　　　 JA Hall (9F) Int'l Conference Room (8F)
9:00 Keynote 2
Regional Reports
11:20 Photoreceptor & Related Materials
Lunch Time
1:35 Non-Stop Presentation (1)
4:15 Poster Presentation (1)
16:30
Conference Reception
　
July 17 (Friday)　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
JA Hall (9F) Int&'l Conference Room (8F)
9:00 Keynote 3
9:50 Non-Stop presentation (2)
Lunch Time
1:40 Poster Presentation (2)
3:00 Image Quality & Color Issue
　
　
Cooperation:　Cooperated by The Society for Imaging Science and Technology, IS&T, Tokyo Chapter
　
The Papers Program
　
Keynote Papers
　
Wednesday, July 15, 1998 --9:40-10:25 a.m., JA Hall
　
　" The Evolution of Electrostatic Marking"
　Dan A. Hays, Wilson Center for Research & Technology,
　Xerox Corporation, U.S.A.

　Copying and printing technologies based on electrostatic marking have evolved to high levels of performance over the past 40 years. Xerography is the dominant electrostatic marking technology with an estimated 50 billion dollars a year in worldwide revenues. In recent years, there has been a high growth rate of digital color xerography for office and publishing market applications. For short run color printing, digital color xerography is advantaged relative to offset printing in providing lower cost documents with high image quality at moderate to high printing speeds. Furthermore, the digital presses enable the printing of variable (personalized) information with electronic document collation. Due to these advantages, digital color presses based on electrostatic marking technologies are poised to capture an increased share of the commercial printing market in the years ahead. To understand the trend in the image quality and productivity performance of these printing systems, the technologies utilized for the critical imaging and development subsystems in current and emerging electrostatic marking products for short run digital color printing markets are reviewed. Understanding the challenges and limitations of the imaging and development subsystems performance is helpful in anticipating the continued evolution of improved image quality and productivity performance for 21st century digital color presses based on electrostatic marking.


Thursday, July 16, 1998 --9:00- 9:45 a.m., JA Hall

　"Capabilities and Potential of Thermal Ink Jet Technology"
　John D. Meyer, HP Lab., Hewlett Packard Company, U.S.A.

　There is an observable cycle of development in the lifetime of printing technologies. In the beginning they are focused on an application for which they are well suited and to which they make an immediate improvement and contribution. Then comes a period during which the technology is explored in terms of its flexibility and range of application. In the course of that time other technologies may be obsoleted or greatly limited in their usefulness. The history of offset lithography and its impact upon letterpress and rotogravure methods immediately come to mind in this regard. More recently, non-impact technologies have greatly reduced the need for impact printers and the typewriter often finds itself to be limited to the production of multiple-copy forms. Currently, advances in ink jet and xerographic technologies raise similar questions. With the aid of significant computational power to implement sophisticated image processing methods these technologies have shown an outstanding range of application. Today, in the case of ink jet, printers are often purchased based upon the ability to print a full color, photographic image. The implications for photography are as obvious as they are far reaching. This paper will examine these issues with respect to thermal ink jet technology and its position in the evolutionary process described above.



Friday, July 17, 1998 -- 9:00- 9:45 a.m., JA Hall

　"New Printer Concept in Multi Media Age"
　Tadatoshi Sakamaki, Disk Media and System Products 　　
　Division, Ricoh Co. Ltd., Japan

　With the progress of CPU performance, PC has been becoming a multimedia tool. Also with the progress of PC, the type of the documents in our offices has changed a lot from simple letters or static figures to so-called multimedia documents comprising sound/audio and motion pictures. For the output device of such multimedia documents, we offer our Multi Media Printer (MMP) which is bases on the CD-R/RW technology. Conventional way of recording documents has been by paper which can be read at any time and anywhere and can also be used as preserving media because of its archivability. We have tried to give this important role of storing documents to some electronic media and evaluate the CD-R/RW media as paper in electronics age because of its readability by currently diffused PCs with CD-ROM drive and because of its high volume processing capability of multimedia documents. From the viewpoint of environmental protection, we must mention to it that western developed countries including Japan consume paper equal to 100 times of that used in countries of other areas whose population is, as a whole, equivalent only to 12 % of the whole world. However, it is certain that in the course of time these countries would also have been more developed and their paper consumption would burst out increasing. There might be a realistic risk of rapidly losing the natural greenery. We will then strongly recommend to use our CD-R/RW solution (MMP) as a replacement of paper and contribute to saving trees on earth by the reduction of paper consumption.

　
　
Regional Reports from Each Country
　
Wednesday Morning, July 15, 1998 -- 10:25- 11:05 a.m., JA Hall

10:25 am
　"Future Technology with Light and Digits"
　　　Suh Bong Rhee,
　Korea Research Institute of Chemical Technology, Korea

10:45 am
　"The Research on Imaging Science in China"
　　　Yi-Mo Zhang1), Zi-Xia Ma2), Xi-Zhen Zheng2),
　1) The Institute of Opto-electronics and Precision Eng., Tianjin Univ.,
　2) The Tianjin Institute of Reprographic Science and Technology, China


Thursday Morning, July 16, 1998 -- 9:45- 11:05 a.m., JA Hall
9:45 am
　"Printer Development Status and Trend in Taiwan"
　　　Shu Cheng Hsieh, Industrial Technology Research Institute, Taiwan

10:05 am
　"Non-Impact Printing in Thailand (Tentative)"
　　　Sakda Siripant, Chulalongkon University, Thailand

10:25 am
　"IS&T-Where We Are and Where We Are Going"
　　　Robert Gruber, Xerox, U.S.A.

10:45 am
　"History of Liquid Toner Innovation"
　　　Charles E. Case1) and Terry M. Lawson 2),
　1) Roger's Hill Associates Inc, 2) Research Laboratories of Australia


　
　Wednesday, July 15
Invited Technical Papers
　
JA Hall
Wednesday Morning, July 15, 1998
Toner and Developer
　
11:20 am 　A Conceptual Model for the RH-Sensitivity of a Xerographic Developer, Robert J. Nash, Xerox, U.S.A.
11:45 am Discrete Particle Simulation of Particulate Flows, Yutaka Tsuji, Toshitsugu Tanaka and Toshihiro Kawaguchi, Osaka University, Japan
12:10 pm Polymerized Toner: Its Feature and Future, Noboru Yanagida, Takahiro Takasaki and Jun Hasegawa, Nippon Zeon, Japan
Wednesday Afternoon, July 15, 1998
1:35 pm Colorants for Toner Applications: Status and Trends, Ruediger Baur and Hans-Tobias Machold, Clariant GmbH, Germany
2:00 pm Toner fusing and polymer dynamics, Koichi Kato, Ricoh, Japan
2:25 pm Characteristics of Liquid Toner Development and Perspective of its Progress, Makoto Omodani, Tokai University, Japan
EP Process and Device
3:10 pm Recent Advances in our Understanding of Toner Charging, Lawrence B. Schein, Consultant, U.S.A.
3:35 pm Electrophoresis in Liquid Development, Inan Chen, Xerox, U.S.A.
4:20 pm High Speed Color Fusing, Yasuhiro Uehara, Fujixerox, Japan
4:45 pm Multi-Beam Laser Scanning Technology, Toshio Naiki, Minolta, Japan
　
　
Int'l Meeting Room
Wednesday Morning, July 15, 1998
Rewritable Imaging
　
11:20 am Electronic Ink and Electronic Paper, Joseph M. Jacobson, MIT, U.S.A.
11:45 am The Gyricon as an Electronic Paper Medium, Nicholas K. Sheridon, Xerox, U.S.A.
12:10 pm Rewritable Marking Technology (Tentative), Klaus M. Moses, ETIP GmbH, Germany
　
　
Wednesday Afternoon, July 15, 1998
Direct Marking 1 (Thermal, Electronic)
　
1:35 pm Developing Thermal Printing Technology, Takao Abe, Konica, Japan
2:00 pm New Light Stability Technology in TA Paper, Kazumori Minami, Shojiro Sano, Akira Igarashi and Masanobu Takashima, Fuji Photo Film, Japan
2:25 pm A Presentation of TonerJet and Dot Deflection Control, Daniel Nilsson1) and Bengt Bern2), 1) Array Printers, TonerJet Center Japan and 2) Array Printers, Sweden


　
Direct Marking 2 (Ink Jet)
　
3:10 pm Advanced Micro MACH Head, Munehide Kanaya, Seiko Epson, Japan
3:35 pm 4 inch wide Bubble Jet print head, Hiroshi Koizumi, Canon, Japan
Ecology and Environmental Issue
4:20 pm Wastes Management by Recycling, Kei Miyanami, Osaka Prefecture University, Japan
4:45 pm Recycle of Imaging Equipment, Tatsuo Tani, Ricoh, Japan
5:10 pm Environmental Issues, Related Standards and New Paradigm, Masazumi Yoshida, Minolta, Japan

Thursday, July 16
JA Hall
Thursday Morning, July 16, 1998
Photoreceptor and Related Materials
11:20 am A New OPC Technology for Laser Beam Printer & Copier, Masaharu Shirai, Fujixerox, Japan
11:45 am Present Status and Future Outlook of a-Si Drum, Akihiko Ikeda, Kyocera, Japan
12:10 am Image Capturing Mechanism of Elgraphy, Mitsuhiro Kashiwabara, Daigo Aoki and Eiichi Inoue, Dainippon Printing, Japan
　　
JA Hall
Thursday Afternoon, July 16, 1998
Non-Stop Presentation for Poster Papers (1)
　
1:30-4:15 pm 　5min. Oral Presentation for Poster P1−P33
　　　　　　　　　　　　(33 Poster Papers)
　
Thursday Afternoon, July 16, 1998
　Poster Presentation (1)
Int'l Meeting Room
Obrigation Time
　4:15-5:30 pm　 　1st Group　 　P01-P11　
4:30-5:45 pm
 2nd Group 　P12-P22　
4:45-6:00 pm
 3rd Group 　P23-P33　
　
Conference Reception
6:30- 8:30 pm
　
Friday, July 17
JA Hall
Friday Morning, July 17, 1998
Non-Stop Presentation for Poster Papers (2)
　
9:50-12:40 pm 5min. Oral Presentation for Poster P34 − P67
　　　　　　　　　　　　　　　　(34 Poster Papers)
　
Thursday Afternoon, July 17, 1998
　Poster Presentation (2)
Int'l Meeting Room
Obrigation Time
　1:40-2:55 pm　 　1st Group　 　P34-P44　
1:55-3:10 pm
2nd Group
 　P45-P55　
2:10-3:25 pm
3rd Group
 　P56-P57　
　　　
　
Friday Afternoon, July 17, 1998
Invited Technical Papers
JA Hall
Image Quality and Color Issue
3:00 pm Color Images in Non-Impact Printing (Tentative), Annet Jaffey, Consultant, U.S.A.
3:25 pm Image Structure of Photographic Color Print, Satoru Honjo, Honjo Lab., Japan
4:10 pm Recent Advances in Digital Halftoning Technologies, Reiner Eschbach, Xerox, U.S.A.
4:35 pm Color Matching Systems using the Polyhedron Gamut Model, Tsuneo Sato, Mariko Takahashi and Masayuki Saito, Mitsubishi Electric, Japan
5:00 pm Colorimetric Calibration for High Precision Digital Color Printing, Po-Chieh Hung, Konica, Japan

5:25 pm Closing Remark
　
　
　Contributed Papers
　
Thursday Afternoon, July 16, 1998
1:30-4:10 pm
Non-Stop Presentation for Poster Papers (1)
JA Hall
Thursday Afternoon, July 16, 1998 (1:30-2:45 pm)
Photoreceptor & Related Materials
　
P01: Application to OPC Photoreceptor of Metallic Oxide-Gel Prepared by Sol-Gel Method, Takashi Suzuki, Makoto Omodani and Yasusuke Takahashi, Tokai University, Japan
P02: Improvements of Photosensitivity and Photoresponse in Layered Photoreceptors Containing Poly (Methyl Phenyl Silane), Yohta Sakon, Electrophotography Development Center, Ricoh Co., Ltd.; Minoru Umeda, R&D Center, Ricoh Co., Ltd., Japan
P03: Molecular Distortion and Its Influence on the Optical Absorption in β Metal-Free Phthalocyanine, Jin Mizuguchi, Shinya Matsumoto and Keiji Matsuhama, Yokohama National University, Japan
P04: Electronic Characterization of Magnesiumphthalocyanine Complexes, Shinya Matsumoto, Ayae Endo and Jin Mizuguchi, Yokohama National University, Japan
P05: Crystal Structure of Magnesiumphthalocyanine Complexes, Ayae Endo, Shinya Matsumoto and Jin Mizuguchi, Yokohama National University, Japan
P06: Effect of Charge Transport Material Molecular Structure on the Hole Mobility and Abrasion Resistance of Charge-Transport-Material-doped Polymer Thin Film, Yoshinobu Takeda, Hiroyuki Endoh, Tsutomu Uezono and Etsuo Hasegawa, Functional Device Research Labs., NEC Corp. , Japan
P07: Molecular Weight Dependence of Hole Transport in Polysilane due to Polaron Contribution, Norio Nagayama and Masaaki Yokoyama, Material and Life Science, Osaka University, Japan
P08: Photogeneration of Smectic Phenylnaphthalene Liquid Crystalline, Hong Zhong, Masahiro Funahashi and Jun-ichi Hanna, Imaging Science and Engineering Lab., Tokyo Institute of Technology, Japan
P09: Photosensitization of Liquid Crystalline Photoconductor with Fullerene C70, Masahiro Funahashi and Jun-ichi Hanna, Imaging Science and Engineering Lab., Tokyo Institute of Technology, Japan
P10: Photoconductivity of Phthalocyanine Doped C60 Thin Films, Ryoichi Yasuda and Manabu Takeuchi, Dept. of Electrical and Electronic Engineering, Ibaraki University, Japan
P11: Organic Photoconductors Based on Soluble Phthalocyanine polymers, Eunkyoung Kim, Ying-Jun Li, Suh Bong Rhee, Advanced Materials Division, Korea Research Institute of Chemical Technology; Myong Jun Moon, Sang Nam Lee, Bukyoung Univ.; Young Soon Kim, Dongguk Univ. Korea
P12: Influence of Crystallinity on Photoelectronic Property of Copper-phthalocyanine Thin Films, Norihiro Katakami, Masayoshi Masui, Dept. of Electrical and Electronic Engineering, Ibaraki University, Japan
P13: Thermally Stimulated Current in Organic Photoconductors Based on an Unsymmetrical Azo Pigment, Takayuki Shoda, Shinji Aramaki and Tetsuo Murayama, Yokohama Research Center, Mitsubishi Chemical Corp., Japan
P14: Microscopic Free Spaces in Poysilanes Films Measured by Positron Annihilation Life-time Spectroscopy, T. Kasai, T. Nakamura, K. Oka, F. Hori, F. Oshima, H. Naito1) and T. Dohmaru, Research Institute for Advanced Science and Technology, Osaka Prefecture University, 1)College of Engineering, Osaka Prefecture University, Japan
P15: Synthesis and Properties of a Novel Electron Transporting Compound, 3,3'-dialkyl-4,4'-bisnaphthyl quinone (DBNQ), Hideaki Okada1), Fumio Sugai2), Yasufumi Mizuta2), and Masaaki Yokoyama1), 1)Osaka University, 2)Mita Ind., Co. Japan,
　
Thursday Afternoon, July 16, 1998 (2:45-3:20 pm)
Toner and Related Materials
　
P16: Effective Charge Control Method for Liquid Developer by Adding CCA Used in Dry Toner, Toshimitsu Fujiwara, Hidetoshi Miyamoto, Keyaki Yogome and Takaji Kurita, Takatsuki Lab., Minolta Co., Ltd. , Japan
P17: Influence of toner shape on its tribocharging, Toshihiko Noshiro, Manabu Takeuchi, Faculty of Engineering, Ibaraki University; Masumi Asanae and Masahisa Ochiai, Hitachi Metals, Ltd. , Japan
P18: Behavior of Toner Charge in Two-component Developer at Developing Process (・), Akihiro Kotsugai, Masanori Suzuki, Electrophotography Development Center, Ricoh Company, Ltd.; Sohachiro Hayakawa, Polytechnic University, Japan
P19: Factors Defining the Maximum Charge of Toner Particles, Nobuyuki Fujita1, Chiseki Yamaguchi, NEC Niigata; Hiroki Totsuka, Tomoegawa Paper Co.; and Manabu Takeuchi1, 1Dept. of Electrical and Electronic Engineering, Ibaraki University, Japan
P20 P56: Precise Color Management for Art Reproduction System, Yasutoshi Ohta and Hisao Shirasawa, Ricoh AIT Lab., Japan
P57: Objects' Color Matchings based on Image Clustering, Tetsuro Morimoto, Hiroaki Kotera, Graduate School of Science and Technology, Chiba University; and Ryoichi Saito, Dept. of Image Science, Chiba University, Japan
P58: High Precision Device Calibration in Sub-divided Color Spaces, Atsumi Ishige, Chen Hung-Shing, and Hiroaki Kotera, Graduate School of Science and Technology, Chiba University, Japan
P59: Modified Error Diffusion Algorithm with Smoothly Dispersed Dots in Highlight and Shadow, Masaki Nose and Hiroaki Kotera, Graduate School of Science and Technology, Chiba University, Japan
P60: Color Design: The Role of Color Management in Printing, A. Hansuebsai, P. Pungrassamee, The Department of Imaging and Printing Technology, Chulalongkorn University; Thailand; Y. Ando, Canon Co. Ltd.; and Y. Hoshino, Faculty of Engineering, Nippon Institute of Japan, Japan
P61: Tone and Color Reproduction in Offset Printing, M. Matsuki, T. Sadakata, NTT Printec Corporation, Japan
　
Friday Morning, July 17, 1998 (12:05-12:35 am)
Image Quality
　
P62: Machine Vision and Automated Image Quality Measurement, Yair Kipman, Dave Wolin, and Kate Johnson, KDY, Inc. U.S.A.
P63: Effect of Developer Properties on Print Quality, Suchapa Netpradit1, Y. Ando2, T. Ikeda3 and S. Kiatamjornwong1, 1Dept. of Photographic Science and Printing Technology, Chulalongkorn University, Thailand, 2Technical Eduaction Department, Research and Development Headquarters, Canon Incorporation, 3Electrophotography Research Center, Canon Incorporation, Japan
P64: Effect of CCA and Charging Behavior on Print Quality, Chaweewan Poomtien1, Y. Hoshino2 and S. Kiatkamjornwong1, 1Dept. of Photographic Science and Printing Technology, Chulalongkorn University, Thailand, 2Dept. of Systems Engineering, Nippon Institute of Technology, Japan
P65: Region Oriented Wavelet Transform Coding, Takahiro Yagishita, Electrophotography Development Center, Ricoh Co. Ltd. , Japan
P66: Acceptable Registration Error for Color Character Quality, Susumu Imakawa, Research and Development Center, Ricoh Co., Ltd. , Japan
P67: Psychophysical Scale for the Evaluation of Banding Images, Kenji Kagitani, Research and Development Center, Ricoh Co., Ltd. , Japan
P68: Advanced Computer-controlled Instrumentation for Electrophotography, Ming-Kai Tse, John C. Briggs, David J. Forrest and Joe J. Burbridge, Quality Engineering Associates, Inc., U.S.A
P69: Automated Print Quality Analysis for Digital Printing Systems, Ming-Kai Tse, John C. Briggs, David J. Forrest and Joe J. Burbridge, Quality Engineering Associates, Inc., U.S.A
　
Conference Registration
　
Electronic registration is available in SEPJ Homepage. Please access to following Web Site:

http://psi.mls.eng.osaka-u.ac.jp/~sepj/registration.html