Base, full-line printhead, and printing apparatus
First Claim
1. A base in which a plurality of element substrates each including a plurality of driving elements are arranged in an arrayed direction of said plurality of driving elements, comprising:
- a first terminal configured to input a first signal as a differential signal;
a first pair of signal lines configured to transfer the differential signal of the first signal from said first terminal to said plurality of element substrates;
a second terminal configured to input a second signal as a differential signal; and
a second pair of signal lines configured to transfer the differential signal of the second signal from said second terminal to said plurality of element substrates,wherein each of said plurality of element substrates includes;
a first amplifier configured to amplify the differential signal of the first signal transferred via said first pair of signal lines;
a second amplifier configured to amplify the differential signal of the second signal transferred via said second pair of signal lines; and
a first control circuit configured to control to change a gain of said first amplifier based on a first control signal from outside.
1 Assignment
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Accused Products
Abstract
A full-line printhead includes a base in which a plurality of substrates each including arrayed print elements are arranged in the arrayed direction has the following arrangement. The base includes a terminal for inputting a first differential signal, a first pair of lines for transferring the first differential signal from the terminal to the substrates, a terminal for inputting a second differential signal, and a second pair of lines for transferring the second differential signal from the terminal to the substrates. Each substrate includes a first amplifier for amplifying the first differential signal transferred via the first pair of lines, and a second amplifier for amplifying the second differential signal transferred via the second pair of lines. Control is performed to change the gain of the first amplifier based on a control signal from outside.
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Citations
10 Claims
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1. A base in which a plurality of element substrates each including a plurality of driving elements are arranged in an arrayed direction of said plurality of driving elements, comprising:
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a first terminal configured to input a first signal as a differential signal; a first pair of signal lines configured to transfer the differential signal of the first signal from said first terminal to said plurality of element substrates; a second terminal configured to input a second signal as a differential signal; and a second pair of signal lines configured to transfer the differential signal of the second signal from said second terminal to said plurality of element substrates, wherein each of said plurality of element substrates includes; a first amplifier configured to amplify the differential signal of the first signal transferred via said first pair of signal lines; a second amplifier configured to amplify the differential signal of the second signal transferred via said second pair of signal lines; and a first control circuit configured to control to change a gain of said first amplifier based on a first control signal from outside. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification