Recording element controlling circuit for recorder

Abstract

Abstract PURPOSE:To prevent the occurrence of uneven printed density, and to obtain a stabilized recorded image, by supplying appropriate voltages to respective element groups taking into consideration printing characteristics of respective recording element groups that are controlled using a dynamic driving circuit. CONSTITUTION:Based on group selecting signals SL1'-SL6', a voltage controlling means VC supplies an appropriate voltage HV1 of the element group G1 to a recording array HA. At this time, a group selection signal SG1 is supplied to the element group G1, and a driving signal SH1 is supplied to a recording element H1 of the element group G1, so that the recording element H1 of the element group G1 heats to carry out recording print on a printing paper. Then, based on the next incoming signals SL1'-SL6', the voltage controlling means VC supplies an appropriate voltage HV2 of the element group G2 to the recording array HA. At this time, a group selection signal SG2 is supplied to the element group G2, and the driving signal SH1 is supplied to the recording element H1 of the element group G2, so that the recording element H1 of the element group G2 heats to carry out recording print on the printing paper.

Inventors

• 👤 Shiyunichi Uzawa
• 👤 Tetsuzo Mori

Bibliographic Details