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JPH03218840A Expired / Lapsed JP ⏱️ 0.0 years remaining

Image recording device

Assignee: Canon Inc
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Filing: 1990-01-24
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Granted: —
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Expires: 2010-01-24
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Abstract

Abstract PURPOSE:To ensure that the density of an image in a recording medium is uniform and a stable image is constantly obtained even during a continuous recording process by connecting an electric signal which does not allow ink to be discharged, to a recording head during a period from the end of recording by a recording medium to the start of recording by a next recording medium in the continuous recording mode. CONSTITUTION:The subject device consists of a device to control a recording head 106 in terms of temperature, a thermally conductive material 151 for making the temperature of the recording head uniform entirely, a heater for temperature adjustment 152, a radiation fin 153 and a cooling fan 154 for cooling the overheated recording head. These components are mounted on the recording head 106, and a temperature detected using a thermister 150 is converted to digital data using an A/D converter 16. In addition, this data setting is performed sequentially at every cycle utilizing the internal timer of CPU 160. Thus a constantly stable density of an image can be obtained without a drop in the temperature of ink in the nozzle. Furthermore, no qualitative deterioration occurs from the beginning to the end of recording operation, if copies are printed continuously.

Inventors

  • 👤 Hiroyuki Takahashi
  • 👤 弘行 高橋

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-09 20:36
CPC Classifications
—

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