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US 4,847,638 AGranted
Recorder
AssigneeCanon Kabushiki Kaisha
InventorJiro Moriyama
Life of this patent
Estimating the term…
Abstract
There is disclosed a recorder comprising: a print head for discharging ink toward a record medium; detection unit for detecting a thickness of the record medium; and device for adjusting a discharge timing of the ink in accordance with a signal from the detection unit.
Claims8
An ink jet recorder comprising:
- a print head for discharging ink toward a record medium as said print head and recording medium are moved relative to each other;
- detection means for detecting a thickness of said record medium;
- and
- means for adjusting a discharge timing of the ink in accordance with a signal from said detection means to accurately place on said record medium ink discharged from said print head as said print head and said record medium are moved relative to each other.
1 more element
A recorder comprising:
- a print head for discharging ink toward a record medium;
- detection means including a leaf spring and a strain gauge for detecting a thickness of said record medium, said detection means having a detecting circuit including a bridge circuit in which a resistance of said strain gauge forms one side of said bridge circuit, wherein said detecting circuit includes a first amplifier to which an output of said bridge circuit is applied in accordance with the change of the resistance of said strain gauge and a second amplifier having a first terminal to which an output of said first amplifier is applied prior to the feeding of a record medium and a second terminal to which an output of said first amplifier is applied after the feeding of a record medium;
- and
- means for adjusting a discharge timing of the ink in accordance with a signal from said detection means.
1 more element
Dependencies are inferred from the claim text.