Several studies of media characteristics of Laser Induced Melt Transfer (LIMT) have been done in this report. Print experiments have been made, using different sorts of wax and thickness of wax layer, and the effect of back heating has been investigated. A two dimensional thermal diffusion model has been developed especially for study of the print mechanism of LIMT, in which heat of fusion of the wax layer is taken into account. The model has produced a curve of “print energy vs. power density” by introducing the threshold temperature.
The following conclusions have been drawn.
(1) It was difficult to change the formulation for the wax layer for the reduction of the print energy. Back heating had a large effect on it.
(2) The comparison of the model with the experimental results suggests the temperature in the centre of the pixel affects the ink transfer process and the adhesion in the centre of the pixel is important in the LIMT process.

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Monolayer organic photoreceptor for positive charging xerography using perylene pigment as a carrier generation materia1,shows different xerographic properties depending on its crystallinity. We investigated various effects of the pigments on the overall photosensitivity of the film by photoinduced discharge of the surface potential applied on the film. Results show that high photosensitivity of the monolayer organic photoreceptor can not be achieved when the film has low electron transport property, even when the charge generation efficiency in the film is high enough. Thus, the photosensitivity of the film which has dispersed perylene pigment in a hole transport matrix, was found to be in close connection with the electron transport property of the film.

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A novel method for the determination of localized-state distributions in amorphous semiconductors from transient photoconductivity using Laplace transform technique has been proposed. Unlike conventional methods, localized-state distributions can be determined from the whole time range of the transient photoconductivity encompassing a recombination lifetime in terms of the present method. The applicability of the present method is demonstrated in various models with different distributions of the density of states by means of numerical calculation.

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We have proposed a new electrophotographic process without corona discharge using two component developer consisting of in sulative magnetic toner and a conductive magnetic carrier and an a-Si photoreceptor with thickness of only 6 μm. The photoreceptor is charged through the conductive magnetic carrier. Toner particles can be easily electrostatically transferred from photoreceptor to plain paper. The image density of 1.3 on plain paper is obtained at the peripheral velocity of photoreceptor with 5 cm/s and the bias voltage of 60 V. We also discuss the photoinduced decay of the surface potential in terms of charge carrier transport properties in the photoreceptor. The calculation based on this consideration shows that the a-Si:H photoreceptor is suitable for this system.

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