B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
314/41, 101/43
B41J 2/365 (2006.01) B41J 2/36 (2006.01) B41M 5/26 (2006.01)
Patent
CA 1300428
SATO-210 (17-14) THERMAL PRINT HEAD PRINTING CONTROL APPARATUS ABSTRACT OF THE DISCLOSURE A controller for a thermal print head is coupled to a temperature sensor which senses the tem- perature at the thermal print head and also to a volt- age sensor which senses the value of the voltage ap- plied to the thermal print head. A printing duration table supplies optimum printing duration values for each combination of temperature and voltage values. The controller retrieves from the table a printing duration value corresponding to given temperature and voltage levels and activates the thermal print head for a time duration corresponding to the value retrieved from the table. The controller thus compensates for temperature and/or voltage fluctuations and assures that the thermal print head produces a consistent print quality.
543162
Finlayson & Singlehurst
Kabushiki Kaisha Sato
LandOfFree
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