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 14):
A non-transitory recording medium storing a computer readable program for controlling an image forming apparatus including an image carrier, a charging roller that charges the image carrier, and a power supply part that applies a charging voltage to the charging roller, the program causing a computer to perform:\n measuring an elapsed time from a start of application of the charging voltage by the power supply part; measuring 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; calculating 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, on the basis of the value measured by the measuring of the value of the DC component of the current and the elapsed time at measurement performed in the measuring of the value of the DC component of the current; and performing judgment related to life of the charging roller on the basis of the coefficient and a predetermined threshold.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 98.0
- Lexical Diversity: 2.34921
- Patent Class: 399.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16184881', '16121092', '15581721', '14739747', '13685888']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8237225954993486
- 35 USC 102 Novelty (BERT): 0.4916866717435786
- Combined Prediction Score: 0.7905190031237715
- Mean Citation Score: 214.21441400000003
- Max Citation Score: 237.93683
- Similarity Product: 160.7105097923291

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