PATENT CLAIM ANALYSIS

Application Number: 16212665
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-06
Patent Classification: ["399", "024000"]

Abstract:
An image forming apparatus includes: an image carrier; a charging roller that charges the image carrier; a power supply part that applies a charging voltage to the charging roller; a current measurement part that measures a value of a DC component of a current flowing between the image carrier and the charging roller at at least two timings having mutually different elapsed times; and a hardware processor that measures an elapsed time from a start of application of the charging voltage by the power supply part, calculates a coefficient of an approximate expression indicating a relationship between the value of the DC component of the current flowing between the image carrier and the charging roller, and the elapsed time, and performs judgment related to life of the charging roller on the basis of the coefficient and a predetermined threshold.

Claim (Index 10):
The image forming apparatus according to  claim 4 , the image forming apparatus being capable of communicating with an external device and further comprising:\n a transmitter that transmits the use amount information, the coefficient, and the state information to the external device in association with each other; and a result receiver that receives a judgment result related to the life of the charging roller from the external device, wherein the hardware processor predicts the life of the charging roller on the basis of the judgment result received by the result receiver.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 98.0
- Lexical Diversity: 2.34921
- Patent Class: 399.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16184881', '16121092', '15581721', '14739747', '13685888']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8053692816269573
- 35 USC 102 Novelty (BERT): 0.492315910245479
- Combined Prediction Score: 0.7740639444888094
- Mean Citation Score: 214.21441400000003
- Max Citation Score: 237.93683
- Similarity Product: 154.01878038139105

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

Dataset: test