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Information recording apparatus for thermosensitive medium

An information recording, heat sensitive technology used in printing and other directions

Inactive Publication Date: 2007-11-21
TOSHIBA TEC KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, there is a problem that an expensive and large-scale recording device must be used

Method used

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  • Information recording apparatus for thermosensitive medium
  • Information recording apparatus for thermosensitive medium
  • Information recording apparatus for thermosensitive medium

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0028] First, a first embodiment in which a pair of laser light emitting sections and LED light emitting sections are arranged will be described.

[0029] FIG. 1 is a perspective view showing the configuration of a main part of a recording apparatus according to a first embodiment of the present invention. This recording apparatus is provided with a laser light emitting section 1 as a first light source. A laser beam from a laser emitting unit 1 is irradiated onto a polygon mirror 3 via a collimator 2 . The laser light emitting section 1 is constituted by a commercially available semiconductor laser having an emission wavelength λ1 in the near-infrared region (750 to 1,000 nm) and having an output of several watts.

[0030] The collimator 2 converts the laser beam as diverging light into a parallel light flux. The laser emitting unit 1 has a high calorific value. Therefore, the laser light emitting section 1 is fixed to the heat sink so as to radiate the generated heat.

...

no. 2 example

[0052] Now, a second embodiment in which a plurality of pairs of laser light emitting sections and LED light emitting sections are arranged will be described.

[0053] Fig. 10 is a perspective view showing the configuration of a main part of a recording apparatus in a second embodiment of the present invention. In this recording device, as the first light source, five laser light emitting parts 31, 32, 33, 34 and 35 are arranged at a predetermined pitch P0 along the transport direction of the heat-sensitive medium 4, and the laser light emitting parts 31, 32, 33, 34 Each of and 35 has a semiconductor laser and a collimator. The semiconductor laser is a commercially available semiconductor laser having an emission wavelength in the near-infrared region (750 to 1,000 nm) and an output of several watts. Laser beams from the respective laser light emitting sections 31 to 35 are irradiated onto a polygon mirror 36 .

[0054] The arrangement pitch P0 of the respective laser light ...

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Abstract

A recording apparatus for recording information in a thermosensitive medium which has a photothermal conversion layer having a light wavelength absorption property and a coloring layer colored by the heat generated by the photothermal conversion layer comprises a first light source that emits a light beam for writing information to a scanning position in a main scanning direction in the thermosensitive medium, and a second light source that emits a light of lower energy density than the light beam emitted by the first light source to the scanning position in the main scanning direction in the thermosensitive medium or to the vicinity thereof. The first light source and the second light source emit lights having wavelengths within the range of the absorption property of the photothermal conversion layer respectively to form recording dots of one line in the main scanning direction in a noncontact manner with the thermosensitive medium.

Description

technical field [0001] The present invention relates to an apparatus for recording information in a thermosensitive medium by combining dots. Background technique [0002] Thermosensitive media include recording media capable of thermal recording and rewritable media capable of thermal recording and thermal erasing. Conventionally, for recording media, there are known recording devices using thermosensitive materials, such as leuco dye systems and diazo compound systems. Conventionally, for rewritable media, there are known recording devices using a reversible thermal recording material capable of repeating color development and decolorization at a predetermined temperature. These recording apparatuses record information by heating a heat-sensitive medium with a thermal head to cause the heat-sensitive medium to develop color. For rewritable media, the heating temperature is further changed to decolorize the media and erase the recording. The thermal head is in contact wi...

Claims

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Application Information

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IPC IPC(8): B41J2/435
CPCB41J2/4753
Inventor 村上和则大高善光田村敏行日吉隆之
Owner TOSHIBA TEC KK
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