| 摘要 |
PROBLEM TO BE SOLVED: To remove such a demerit as to be upsized due to increase of size of a recording element substrate chip, and to broadening of a wiring width, resulting from the need for additional terminals and wiring in an inkjet recording head element substrate, a head, and a recorder body, the need for an additional circuit for discrimination, or the like, when a ROM for discriminating a fuse or the like is formed in an inkjet recording element substrate. SOLUTION: The inkjet recorder is constituted such that is detected that current is flowing in a plurality of recording elements, by detecting an inductive noise generated for a change amount of current per unit time, the current which flows when the plurality of recording elements are respectively driven, by an inductive noise detection wiring portion adjacent to wiring for supplying power to the recording elements. COPYRIGHT: (C)2009,JPO&INPIT
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