EP 0581403 B1 19970319 - Method and apparatus for economical thermal transfer printing
Title (en)
Method and apparatus for economical thermal transfer printing
Title (de)
Sparsames Thermotransferdruckverfahren und Anordnung zur Durchführung
Title (fr)
Méthode et dispositif pour l'impression économique thermique par transfert de chaleur
Publication
Application
Priority
DE 4225798 A 19920731
Abstract (en)
[origin: EP0581403A2] A method for economical thermal transfer printing, having a lower ribbon speed of the ink ribbon than the transporting speed of the recording medium, in which during the printing operation ink-ribbon control is carried out in such a way that the saving factor S, formed from the quotient of the path length of the recording medium travelled in total SIGMA (b + x) and the length of the ink ribbon required in total SIGMA (c + p), is increased by a factor m in dependence on printing image interruptions after a particular duration. The factor m results from the interruption of the forward movement and subsequent defined backward movement of the ink ribbon which corresponds to the sum of the path corresponding to the holding time and the path corresponding to the start-up time and lies between a minimum value of one and a maximum value which is determined by the sum of the ratios, increased additively in each case by one, of ribbon lengths p not required during printing to the required ribbon lengths c. <IMAGE>
IPC 1-7
IPC 8 full level
B41J 2/365 (2006.01); B41J 33/36 (2006.01)
CPC (source: EP)
B41J 2/365 (2013.01); B41J 33/36 (2013.01)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0581403 A2 19940202; EP 0581403 A3 19950125; EP 0581403 B1 19970319; DE 4225798 A1 19940203; DE 59305848 D1 19970424
DOCDB simple family (application)
EP 93250218 A 19930729; DE 4225798 A 19920731; DE 59305848 T 19930729