The thermal printing method uses cyclic control of the individual heating elements (R1...Rn) of the thermal printing head (1) within each control cycle. A cooling pause for all the heating elements is inserted in front of each control cycle, during which the temp.. of the heating elements is measured sequentially. The temp. of the heating element at a subsequent point is extrapolated using the measured temp. and the known cooling characteristic to control the current amplitude fed to the heating element during the cyclic control phase. Pref. the temp. of each heating element is determined from its measured resistance and a stored reference resistance value.
申请公布号
DE3866338(D1)
申请公布日期
1992.01.02
申请号
DE19883866338
申请日期
1988.12.05
申请人
SIEMENS AG, 8000 MUENCHEN, DE
发明人
KAISER, DIPL.-ING., RALF, W-1000 BERLIN 19, DE;KIRCHHOFF, DIPL.-ING., HARTMUT, W-1000 BERLIN 46, DE;PEKRUHN, DR.-ING., WOLFGANG, W-1000 BERLIN 33, DE
