Thermal recording device

Abstract

Abstract PURPOSE:To use a low-output heat-ray generator and also to reduce the manufacture cost without any decrease in recording speed by providing plural heat-ray generators and scanning a recording medium with plural heat beams which have time deviation in exactly the same way. CONSTITUTION:Two heat-ray generators, e.g., a main heat-ray generator 10 which emits a main heat beam 14 and a subordinate heat-ray generator 11 which emits a following-up heat beam 15 are arranged in a thermal recording device. then, their heat-beam projection ends are arranged by having different elevation angles to the upper mirror surface of a rotary polygon mirror 12. The main heat-beam generator 10 and subordinate heat-beam generator 11 output the low-output main heat beam 14 and following-up heat beam 15 intermittently according to recording information. A convergent optical system 13 is provided slantingly above the rotary polygon mirror 12 and the same part on a recording medium 16 is scanned successively with the plural heat beams emitted by the plural heat-ray generators, so the irradiation time of a heat beam per spot is extended effectively without any decrease in recording speed.

Inventors

• 👤 Tomio Ando
• 👤 富雄 安藤
• 👤 Harumichi Kageyama
• 👤 影山　陽道

Bibliographic Details