| 摘要 |
PURPOSE:To achieve clear recording with high density under a wide range of environmental temperature conditions, by forcibly cooling an ink to a temperature not higher than a top peak value measured by a differential scanning calorimeter (DSC), preferably, not higher than the solidifying temperature of the ink. CONSTITUTION:A printer of a portable word processor comprising a thermal head 5' so reconstructed as to achieve cooling by circulating a cooling medium in the interior of the head immediately after the application of a voltage is used. By using a thermal transfer ribbon employing an ink having a top peak temperature of, for example, 77 deg.C and a solidifying temperature of 75 deg.C, thermal transfer recording is performed at an environmental temperature of, for example, 45 deg.C. |
