Thermosensitive color printing method and thermose

专利名称：Thermosensitive color printing method and

thermosensitive color printer

发明人：Hiroyuki Matsukawa,Nobuo Katsuma,Shigeru

Tagaya

申请号：US09/458075申请日：19991210公开号：US06154241A公开日：20001128

摘要：A thermosensitive color recording sheet includes yellow, magenta and cyanthermosensitive coloring layers formed on a support. A thermal head heats thererecording sheet for recording on the yellow coloring layer while the recording sheet istransported in a forward direction through the thermal head at a speed predeterminedaccording to a thermal sensitivity of the yellow coloring layer. A yellow fixing lampdisposed behind the thermal head in the forward direction applies near ultraviolet raysto the recording sheet to fix the yellow coloring layer. The yellow fixing lamp ismaintained at an irradiance set value while the recording sheet is transported in theforward direction. The irradiance set value is determined based on a maximum irradianceof the yellow fixing lamp that is measured prior to the thermal recording on the yellowcoloring layer while driving the yellow fixing lamp by a drive pulse signal at a maximumduty factor. The recording sheet is then transported in a rearward direction under theyellow fixing lamp, to refix the yellow coloring layer. For the refixing, the yellow fixinglamp is maintained at a second irradiance set value determined based on a secondmaximum irradiance of the yellow fixing lamp that is measured at the end of the forward

transport of the recording sheet, whereas the recording sheet is transported therearward direction at a transport speed determined in accordance with the secondirradiance set value.

申请人：FUJI PHOTO FILM CO., LTD.

代理机构：Sughrue, Mion, Zinn, Macpeak & Seas, PLLC

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