recording head

Abstract

Abstract PURPOSE:To obtain a recording generating no tailing, by providing a heat generator selectively generating heat in accordance with an image signal, a spacer holding the heat generator and a recording medium to a non-contact state and a temp. gradient part for cooling a recording dot. CONSTITUTION:When a voltage pulse is applied to a heat generator 7, the heat generator selectively generates heat and the ink 3 therearound is melted to be lowered in its viscosity. Then, the ink 3 begins to flow out from an ink passing hole 8 to spread in a space 13. The molten ink 3 fully spreads then in the region where the heat generator 7 is present. At this time, the generation of the heat from the heat generator 7 stops and, at the same time, the radiation of heat begins and the viscosity of the ink 3 increases to stop the outflow of the ink 3. Next, the ink layer is separated into the layer covering the heat generator 7 and the layer transferred to recording paper 10 with the movement of the recording paper 10 to form a recording dot 12 on the recording paper 10 and the state of the heat generator 7 returns to the initial state. In the above-mentioned process, by providing a cooling part 14 on the downstream side of the heat generator 7 with respect to the recording paper 10, a heat radiation property becomes good and the viscosity increasing time of the ink 3 becomes fast.

Inventors

• 👤 Akihiro Mori
• 👤 明広 毛利
• 👤 Katsumi Kurematsu
• 👤 克巳 榑松

Bibliographic Details