PATENT CLAIM ANALYSIS

Application Number: 15743699
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-02
Patent Classification: ["347", "068000"]

Abstract:
The invention relates to a method for actuating an inkjet print head, comprising at least one printing system having a nozzle on the side of an ink chamber which faces a substrate to be imprinted, and which is delimited at least in areas, preferably in its area facing away from the print substrate, by a diaphragm that is movable away from the ink chamber by electrically actuating a piezo element that is mechanically coupled to the diaphragm, so that ink is drawn into the ink chamber from a reservoir, and the diaphragm is movable into the ink chamber so that an ink drop is ejected from the ink chamber through the nozzle, wherein the printing system made up of the ink chamber, diaphragm, piezo element, and the electronic control system thereof represents an oscillatable structure which, when actuated at high energy, is excited to oscillate at a natural frequency f res  that exhibits resonance; i.e. the oscillation with the period T res =1 /f res  undergoes little or no attenuation, and wherein the brightness of a pixel to be printed is varied in that, for each pixel, a sequence of multiple ink drops is ejectable in succession from the same nozzle at a time interval of T drop =1 /f drop , and energy is only introduced into the printing system via the actuation signal precisely when an ink drop is actually to be ejected.

Claim (Index 1):
A method for actuating an inkjet print head ( 1 ), comprising at least one printing system ( 11 ) having a nozzle ( 8 ) on the side of an ink chamber ( 12 ) which faces a substrate to be imprinted, and which is delimited at least in areas, preferably in its area facing away from the print substrate, by a diaphragm ( 15 ) that is movable away from the ink chamber ( 12 ) by electrically actuating a piezo element ( 16 ) that is mechanically coupled to the diaphragm ( 15 ), so that ink is drawn into the ink chamber from an ink reservoir ( 14 ), and the diaphragm is movable toward or into the ink chamber so that an ink drop ( 24 ) is ejected from the ink chamber through the nozzle ( 8 ), wherein the printing system ( 11 ) made up of the ink chamber ( 12 ), diaphragm ( 15 ), piezo element ( 16 ), and the control circuit ( 18 ) thereof represents an oscillatable structure which, when actuated at high energy, is excited to oscillate at a natural frequency f res  that exhibits resonance; i.e., the oscillation with the period T res =1/f res  undergoes little or no attenuation, and wherein the color intensity of a pixel to be printed is varied in that, for each pixel, a sequence of multiple ink drops ( 24 ) is ejectable in succession from the same nozzle ( 8 ) at a time interval of T drop =1/f drop , characterized in that energy is only introduced into the printing system ( 11 ) via the actuation signal precisely when an ink drop ( 24 ) is actually to be ejected.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 86.0
- Lexical Diversity: 2.2193
- Patent Class: 347.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15107556', '10561303', '10329566', '12432802', '12629995']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7399877682414424
- 35 USC 102 Novelty (BERT): 0.4861370977369356
- Combined Prediction Score: 0.7146027011909918
- Mean Citation Score: 183.36244
- Max Citation Score: 205.569
- Similarity Product: 141.4001339687705

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test