PATENT CLAIM ANALYSIS

Application Number: 15937702
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["347", "007000"]

Abstract:
An inkjet printing apparatus includes a print head, an ink tank containing ink to be supplied to the print head, a cap switchable between a covering position to cover a discharge port face and an exposing position to expose the discharge port face, a suction unit connected to the cap, and a control unit. The control unit controls the performing of an ink filling operation of filling the print head with the ink supplied from the ink tank. The ink filling operation includes a valve-closing suction operation of performing suction through the suction unit for a predetermined period of time while the cap is in the covering position. The apparatus further includes a detection unit configured to detect an ink filling state. The control unit controls the stopping of the ink filling operation in accordance with a detection result of the detection unit.

Claim (Index 1):
An inkjet printing apparatus comprising:\n a print head having a discharge port face in which a plurality of discharge ports that discharge ink are arranged; an ink tank containing the ink to be supplied to the print head; an on-off valve disposed in an ink passage between the print head and the ink tank, the on-off valve being configured to be switchable between an open position and a closed position; a cap configured to be switchable between a covering position to cover the discharge port face and an exposing position to expose the discharge port face; a suction unit connected to the cap; a pressure measuring unit configured to measure a pressure at a predetermined position in the ink passage between the on-off valve and the suction unit; and a control unit, wherein the control unit controls the performing of an ink filling operation of filling the print head with the ink supplied from the ink tank, the ink filling operation including a valve-closing suction operation of performing suction through the suction unit for a predetermined period of time while the on-off valve is in the closed position and the cap is in the covering position and then switching the on-off valve to the open position, and wherein the control unit controls the stopping of the ink filling operation in accordance with a pressure variation per unit time measured by the pressure measuring unit in the ink filling operation.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 90.0
- Lexical Diversity: 2.57627
- Patent Class: 347.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13217520', '11844792', '13217453', '14829336', '15659304']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7677599395205602
- 35 USC 102 Novelty (BERT): 0.4956238960948597
- Combined Prediction Score: 0.7405463351779902
- Mean Citation Score: 268.91870800000004
- Max Citation Score: 284.4134
- Similarity Product: 237.8746972654343

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

Dataset: test