| 摘要 |
A thermal head in a thermal printer has heating elements, a glaze layer and a ceramic board. Equations are used for correcting heat accumulation. <?in-line-formulae description="In-line Formulae" end="lead"?>Eg 1 (M+1,N)=(1-k 1 ).E(M,N)+(1-k 2 ).Eg 1 (M,N)<?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>Eg 2 (M+1,N)=k 2 (1-k 3 )(1-k 4 ).Eg 1 (M,N)<?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>Ec 1 (M+1,N)=k 2 (1-k 3 ).k 4 .Eg 1 (M,N)+(1-k 5 ).Ec 1 (M,N)<?in-line-formulae description="In-line Formulae" end="tail"?> E(M,N): heat data of an Nth pixel of an Mth line after heat accumulation correction; Eg 1 (M,N): accumulated heat data of the glaze layer at point Pg 1 and obtained in the correction of an (M-1)th line; Eg 2 (M,N): accumulated heat data of the glaze layer at point Pg 2 and obtained in the correction of the (M-1)th line; Ec 1 (M,N): accumulated heat data of the ceramic board at point Pc 1 and obtained in the correction of the (M-1)th line.
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