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Volume 60 (1997)
- Issue 6 Pages 348-
- Issue 5 Pages 293-
- Issue 4 Pages 228-
- Issue 3 Pages 140-
- Issue 2 Pages 75-
- Issue 1 Pages 2-
Volume 60, Issue 6
Displaying 1-7 of 7 articles from this issue
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Makoto FUJINO1997 Volume 60 Issue 6 Pages 348-352
Published: December 25, 1997
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSInkjet prints made with Multi-layer Actuator Head inkjet printers were evaluated in termes of graininess and the number of discriminable lightness levels.
It was confirmed that the use of smaller dots and the use of a lower density ink reduce graininess by about one third, increasing the number of discriminable density levels two to three times.View full abstractDownload PDF (3656K) -
Toshiaki KAKUTANI1997 Volume 60 Issue 6 Pages 353-356
Published: December 25, 1997
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSBy analyzing the mechanism of image distortion in a low density area caused by the delay of dot generation as well as the dragging, (This phenomenon can be expressed in a high densitiy area as the delay of white dot generation.) I have found that the use of threshold values depending on input data levels can suppress these distortions remarkably.View full abstractDownload PDF (2791K) -
Kazumichi SHIMADA1997 Volume 60 Issue 6 Pages 357-359
Published: December 25, 1997
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSA high quality imaging technology is developed for MACH system color inkjet printers. In this technology, we used new MLChips head to organize most suitable micro dot, and added a lower density ink in C, M color components for the reproduction of high light area. Using this new technology, the graininess of image is improved greatly, and making the quality of image printed by MACH color inkjet printer more excellent.View full abstractDownload PDF (1641K) -
Hiroshi FUKUDA, Nobuo KATSUMA, Hiroyuki IWASAKI1997 Volume 60 Issue 6 Pages 360-363
Published: December 25, 1997
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSA new direct thermal full color recording system named “TA” (=Thermo-Autochrome) has been developed. The TA system creates high quality continuous tone full color prints without accompanying any wastes such as an ink ribbon or an ink cartridge.
Since, in TA system, yellow, magenta and cyan layers are printed separately by different thermal energy ranges, TA accompanies a little overlaps of energy-sensitivities and has higher gammas, compared with dye sublimation systems. To improve the image quality, solving these issues are needed.
In our TA printer, we solved the former by using 3D-LUT, and the latter by using the printing method, which includes the bias energy as a part of the thermal control range.View full abstractDownload PDF (1976K) -
Yutaka KURABAYASHI1997 Volume 60 Issue 6 Pages 364-367
Published: December 25, 1997
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSInk jet recording process to improve print quality on plain paper has been investigated. In the recording process, the paper surface was pretreated by splaying special liquid using ink jet print head to achieve (1) dot sharpness, (2) high optical density and (3) color to color bleed control. The processing liquid contains substance which causes the aggregation of colorants in inks when processing liquid and inks are mixed on the paper surface.View full abstractDownload PDF (2576K) -
Tatsuya ISHIDA, Nobuo MII, Kenichi KUGE1997 Volume 60 Issue 6 Pages 368-373
Published: December 25, 1997
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSFundamental design of the emulsion coatings of silver halide material to make hardened-gelatin volume phase hologram, whose characteristics were similar to those of conventional dichromated gelatin holograms, were investigated. The strain and the distortion of recorded holographic interference fringes image had to be minimized during processing in the emulsion coating. The hologram having higher diffraction efficiency and signal-to-noise ratio was produced in the coating prehardened maximum using mucochloric acid and having reasonable thickness with proper silver-to-gelatin ratio.View full abstractDownload PDF (609K) -
Shin OHNO1997 Volume 60 Issue 6 Pages 374-375
Published: December 25, 1997
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSDownload PDF (1824K)
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