The newly developed Pictrography 3000 is a latest type of full color digital printer, based on the photothermographic material. Major system improvement are as follows. 1. Higher resolution and reduced exposure time. 2. Improved color reproducibility. It differs from its ancestors in light sources. The Pictrography 3000 is implemented with laser diodes to expose photosensitive materials. To expose the donor film with laser diodes, both optical scanning system and photosensitive materials must be newly developed. High quality color imaging was realized by minimizing the thermal influence to exposing energy with the careful choice of laser diodes and optimizing the characteristics of donor film. The achromatic laser scanning system was newly developed, which realized good color registration. The image processing system and the auto calibrator are both equipped to keep high quality and stable image reproduction.

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Fujix Pictrography 3000 has been developed and introduced into the market in March 1993. From digital Image data, our system can produce full color hard-copies. Our system can depict very fine pictures by using three Laser Diodes(LD) which respectively emit 680, 750, and 810 nm lights, and has the prominent features ; no processing chemicals, excellent image quality, short processing time, etc. Our new technologies are as follows. 1. IR(infrared) spectral sensitization technology matched to recording wave-lengths of three LDs is developed. The IR J-band formation technique is the innovative technology in this field. 2. New non-diffusible IR dyes and a new layer arrangement are Introduced to improve sharpness and spectral selectivity of photographic images.

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Digital color copier was developed and advanced user like designers started to use the copier for thier applications. Color document has an advantage in an easy understanding than black and white document, but it is not so easy to make by hand. We research color sysytems based on a digital color copier for a color document creation with computer assistance. We made ICS concept for a flexible and easy system integration. Two types of Acolor ICS,RM and CM are well received in the market.

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We investigated about the high quarity image processing architecure for laser printer. The multi-level dithering method apply to the gray scale image. Image segmentation is made in the frame memory. Two distinct real-time image processing are made for each area at the rate the bit stream is sent to the laser driver. For monotone image, if neighboring dots match the template, appropriate change is made for the center dot. and edge raggedness is eliminated. For gray scale image, similar algorithm restores the original spot figure. This method provides more stable halftone reproduction especially for highlight image area.

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We have developed a new method of dot area modulation named "LOUVER" using wax transfer thermal printing method. The principle is to use a rectangular-shaped heating element with its shorter side placed parallel to the sub-scan direction; the dot size is varied along the sub-scan direction according to the number of pulses applied to the heating element. By applying a pulse train a half-tone print more than 64 tone levels at a resolution of 6 dot/mm has been obtained. General characteristics of the printer will be reported.

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The demand for hard copying from video signal increase with popularization of video camera. and it is possible to get high quality prints from Photo-CD. And recently, VP-specificatinon is proposed to the printing world. We began selling the color video printer CVP-M3 (downsizing, portability, and easy operation) in Jun 1993. This paper will mainly explain the technological back-ground of print mechanism.

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