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IBM Journal of Research and Development

Issue 3 • Date May 1984

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Displaying Results 1 - 17 of 17
  • Table of Contents

    Publication Year: 1984 , Page(s): 231 - 232
    Save to Project icon | PDF file iconPDF (463 KB)  
    Freely Available from IEEE
  • Preface

    Publication Year: 1984 , Page(s): 233
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (115 KB)  

    More than five hundred years have elapsed since Johann Gutenberg perfected his revolutionary idea of movable type. His invention marked the beginnings of book production and eventually led to the mass distribution of ideas and information. Gutenberg's printing press introduced two very important concepts to the Western World. First, impressions were made by pressing inked characters against a shee... View full abstract»

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  • Introduction to Topical Issue on Non-Impact Printing Technologies

    Publication Year: 1984 , Page(s): 234 - 240
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (683 KB)  

    In this paper, we present an overview of the technologies of importance in computer output printing, providing a background for the succeeding papers in this issue. IBM workers have played a key role in the evolution of computer printers from a few marginally reliable complex mechanisms to an industry which today counts annual sales of over ten billion dollars worldwide. Thus, in this necessarily ... View full abstract»

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  • Technology Trends in Electrophotography

    Publication Year: 1984 , Page(s): 241 - 251
    Cited by:  Papers (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1071 KB)  

    Selected innovations and advances in electrophotographic printing are reviewed. Technological advances in photoreceptors, imaging techniques, toner development and cleaning, fusing, sensors, and new machine configurations and functions are discussed with respect to their possible applicability to future electrophotographic imaging systems. In general, improvements in print quality and reliability ... View full abstract»

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  • Introduction to the IBM 3800 Printing Subsystem Models 3 and 8

    Publication Year: 1984 , Page(s): 252 - 256
    Cited by:  Patents (7)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (384 KB)  

    The IBM 3800 Printing Subsystem Models 3 and 8 are high-speed, non-impact, electrophotographic printers which are designed for system printing, text, and graphics applications requiring flexibility and high print quality. Features such as their print density of 240 × 240 pels/in.2 and all-point addressability extend substantially their printing capabilities beyond those of the Mo... View full abstract»

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  • Technology of the IBM 3800 Printing Subsystem Model 3

    Publication Year: 1984 , Page(s): 257 - 262
    Cited by:  Patents (3)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (568 KB)  

    IBM has introduced the 3800 Model 3 electrophotographic printer, which is a modified version of the previously developed Model 1. The Model 3 improves the print density of the 3800 Model 1 from 180×144 pels/in.2 to 240×240 pels/in.2 and permits each pel to be addressed individually. The laser print head was modified to create the higher density by using the same... View full abstract»

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  • Electrophotographic Printer Control as Embodied in the IBM 3800 Printing Subsystem Models 3 and 8

    Publication Year: 1984 , Page(s): 263 - 275
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (990 KB)  

    Control of the IBM 3800 Models 3 and 8 electrophotographic printers is achieved by use of a fundamentally different control system than was used in their predecessors, the Models 1 and 2. As a result, printing of composed pages or electronic overlays can include text of many different font sizes and styles printed in multiple orientations, as well as raster images up to a full page in size. The pr... View full abstract»

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  • Print Quality Measurements for High-Speed Electrophotographic Printers

    Publication Year: 1984 , Page(s): 276 - 284
    Cited by:  Papers (1)  |  Patents (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (811 KB)  

    Described here are some of the characteristics that make electrophotographic printing esthetically pleasing, and the use of a recently developed computer-controlled scanner for measuring those characteristics. New print quality measurements are described (for example, measurements of modulation, image gray-scale fidelity, and tangential-edge roughness) that allow the monitoring of the advanced pri... View full abstract»

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  • Paper Material Considerations for System Printers

    Publication Year: 1984 , Page(s): 285 - 291
    Cited by:  Patents (8)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (539 KB)  

    Laser printing of continuous forms by means of electrophotographic imaging requires that the paper on which the printing is carried out show good handling characteristics at fast machine speeds and be compatible with toner transfer and fixing. Toner transfer requires suitable electrical paper characteristics, similar to those of xerographic cut sheets intended for use in electrophotographic cut-sh... View full abstract»

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  • Flash Fusing in Electrophotographic Machines

    Publication Year: 1984 , Page(s): 292 - 299
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (98 KB)  

    A theoretical model of the flash fusing process for electrophotographic machines was developed using the joint solution of a nonlinear circuit equation and the one-dimensional thermal diffusion equation. Numerous experiments were run using different toners according to the size of toner particles and the pulse width in order to determine the minimum energy that was required for fusing. The experim... View full abstract»

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  • Multiple-Nozzle Ink Jet Printing Experiment

    Publication Year: 1984 , Page(s): 300 - 306
    Cited by:  Patents (2)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (594 KB)  

    An experimental printer is described which utilizes a densely packed array of ink jets operated in a binary, pressurized, asynchronous mode. The printer configuration, the ink jet head structure, the operating point, and the maintenance approach are all discussed. View full abstract»

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  • The Application of Drop-on-Demand Ink Jet Technology to Color Printing

    Publication Year: 1984 , Page(s): 307 - 313
    Cited by:  Papers (3)  |  Patents (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (694 KB)  

    The application of drop-on-demand ink jet technology to high-frequency and high-resolution color printing is investigated using an experimental multi-nozzle print head. Cross talk and drop misregistration are examined as a function of drop ejection frequency. Typical print samples from scanned and computer-generated data are obtained and the dependence of print quality on various parameters such a... View full abstract»

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  • Experimental and Theoretical Study of Wave Propagation Phenomena in Drop-on-Demand Ink Jet Devices

    Publication Year: 1984 , Page(s): 314 - 321
    Cited by:  Papers (18)  |  Patents (9)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (709 KB)  

    This paper presents experimental observations and a theoretical analysis of the operation of drop-on-demand piezoelectric ink jet devices. By studying experimentally the dependence of several operating characteristics on the length of the cavity in the nozzle of an ink jet device, we have gained insight into the physical phenomena underlying the operation of such a device. It is concluded that dro... View full abstract»

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  • Numerical Calculation of the Fluid Dynamics of Drop-on-Demand Jets

    Publication Year: 1984 , Page(s): 322 - 333
    Cited by:  Papers (12)  |  Patents (5)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (896 KB)  

    A numerical method that makes use of the complete incompressible flow equations with a free surface is discussed and used to study an impulsively driven laminar jet. Flow behavior dependence upon fluid properties (characterized by a Reynolds number over Weber number nondimensionalization) is compared for drop integrity purposes. Several variations of square wave pressure history applied at a nozzl... View full abstract»

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  • Recent Papers by IBM Authors

    Publication Year: 1984 , Page(s): 334 - 336
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (334 KB)  

    First Page of the Article
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  • Recent IBM Patents

    Publication Year: 1984 , Page(s): 337 - 338
    Save to Project icon | PDF file iconPDF (172 KB)  
    Freely Available from IEEE
  • Errata [Erratum]

    Publication Year: 1984 , Page(s): 338
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Aims & Scope

The IBM Journal of Research and Development is a peer-reviewed technical journal, published bimonthly, which features the work of authors in the science, technology and engineering of information systems.

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Meet Our Editors

Editor-in-Chief
Clifford A. Pickover
IBM T. J. Watson Research Center