Invention Grant
US07896455B2 Element substrate, and printhead, head cartridge, and printing apparatus using the element substrate 有权
元件基板,以及使用元件基板的打印头,头盒和打印装置

Element substrate, and printhead, head cartridge, and printing apparatus using the element substrate
Abstract:
An element substrate has a plurality of printing elements, and a block selection unit which divides the plurality of printing elements into a plurality of blocks and time-divisionally drives the blocks. The element substrate includes a plurality of input terminals which divide the plurality of printing elements included in each block into a plurality of groups and supply a driving voltage to the printing elements belonging to each group, a delay circuit which externally receives an enable signal for enabling energization to the printing elements and generates a plurality of delayed enable signals having different delay times with respect to the enable signal, and a wiring which supplies the enable signal and the plurality of delayed enable signals output from the delay circuit to different groups in the order of the different delay times.
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