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1. 发明专利

JPH03270950A THERMAL PRINTER 失效
公开(公告)号：JPH03270950A
公开(公告)日：1991-12-03
申请号：JP7004790
申请日：1990-03-20
申请人： ANRITSU CORP
发明人： KAMIYAMA KEN , SHINOHARA HACHIRO , HORIUCHI HIDEJI
IPC分类号： B41J2/355
摘要： PURPOSE:To enable uniform printing to be performed irrespective of a size of a character and a quantity of information by a method wherein this time printing subject data and data before, after, and around said data are stored, and a strobe signal is changed to a specific pulse width based thereon to electrify each element. CONSTITUTION:A thermal head 2 forms a heating part by arranging a plurality of elements 2a-2h linearly in one direction, and a memory part 3 stores respective data, centering this time data, such as before-last data, last data, next data, next data. A shift register 5 and a latch circuit 6 are provided thereto. An element control part 4 is equipped with a combining operation part 7 and a gate circuit 8. The combining operation part 7 performs combining operation of a data becoming this time printing subject which is stored in the latch circuit 6 and data of respective latch circuit 6 being the data before, after, and around said data based on a data operational pulse P to be inputted from outside. The gate circuit 8 varies a pulse width of a strobe signal S based thereon to be applied to the elements 2a-2h, and electrification is performed.

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