單項(xiàng)選擇題

票據(jù)打印機(jī)打印出數(shù)據(jù)不正常時(shí)應(yīng)如何處理？（）

A、清除數(shù)據(jù)緩沖區(qū)數(shù)據(jù)；數(shù)據(jù)問(wèn)題，更換數(shù)據(jù)
B、清除數(shù)據(jù)緩沖區(qū)數(shù)據(jù)；數(shù)據(jù)線接觸問(wèn)題，更換數(shù)據(jù)線
C、清除數(shù)據(jù)緩沖區(qū)數(shù)據(jù)；數(shù)據(jù)線接觸不良，更換數(shù)據(jù)線
D、清除數(shù)據(jù)緩沖區(qū)數(shù)據(jù)；數(shù)據(jù)線問(wèn)題，更換數(shù)據(jù)線

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