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 6):
The image forming apparatus according to  claim 4 , further comprising\n a storage that stores history information being information associating the use amount information, the coefficient, and the state information which are used at the time of judgment of the life of the charging roller in the past by the hardware processor, with each other.

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): 0.8049965227920132
- 35 USC 102 Novelty (BERT): 0.4948967936147439
- Combined Prediction Score: 0.7739865498742863
- Mean Citation Score: 214.21441400000003
- Max Citation Score: 237.93683
- Similarity Product: 148.11798893114332

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

Dataset: test