Printing apparatus and printhead

摘要

A printing apparatus includes N (N is an integer equal to or larger than two) printing element substrates each including a printing element, wherein each of the N printing element substrates includes a first terminal serving as a terminal on a high-potential side to receive a power supply voltage to be supplied to the printing element and a second terminal serving as a terminal on a low-potential side to receive the power supply voltage, and a first wiring connects the first terminal of a kth (k is an integer of one (inclusive) to N−1 (inclusive)) printing element substrate and the second terminal of a (k+1)th printing element substrate with each other, and is connected to one end of a second wiring to which a power supply voltage is supplied.

主权项

1. A printing apparatus comprising:
first and second printing element substrates, each including a printing element; first and second voltage sources, which correspond to the first and second printing element substrates, respectively, each configured to supply a power supply voltage to a corresponding one of the first and second printing element substrates, wherein each of the first and second printing element substrates includes a first terminal and a second terminal for receiving the power supply voltage from a corresponding one of the first and second voltage sources, each first terminal serving as a terminal on a high-potential side and each second terminal serving as a terminal on a low-potential side; a first wiring which connects the second terminal of the first printing element substrate and the first terminal of the second printing element substrate with each other; a second wiring having one end connected to the first wiring; and a third wiring configured such that the first and second voltage sources are connected in series, the third wiring being grounded and connected to the other end of the second wiring.