PATENT CLAIM ANALYSIS

Application Number: 16269577
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["399", "100000"]

Abstract:
An image forming apparatus  100  in which a charging process of a photosensitive member  1  is performed by forming a combined surface potential Vd(U+L) by superimposing, on a first charge potential Vd(U) formed on a surface of the photosensitive member  1  by a first corona charger  31,  a second charge potential Vd(L) provided by the second corona charger  32  has a constitution including a control means  200  for executing an adjusting operation in which a superimposition start voltage Vg(L)A which is the second voltage Vg(L) at which formation of the combined surface potential Vd(U+L) is started is acquired by changing the second voltage Vg(L) applied to a grid electrode of the second corona charger in a state that the first charge potential Vd(U) is formed on the surface of said photosensitive member  1  and in which setting of the second voltage Vg(L) during the charging process is adjusted on the basis of the superimposition start voltage Vg(L).

Claim (Index 1):
An image forming apparatus comprising:\n a photosensitive member; first and second corona chargers for performing a charging process of said photosensitive member; and voltage applying means for applying a first voltage Vg(U) and a second voltage Vg(L) which are independently controllable, to grid electrodes of said first and second corona chargers, respectively; wherein the charging process is performed by forming a combined surface potential Vd(U+L) by superimposing, on a first charge potential Vd(U) formed on a surface of said photosensitive member by said first corona charger, a second charge potential Vd(L) provided by said second corona charger, wherein said image forming apparatus comprises control means for executing an adjusting operation in which a superimposition start voltage Vg(L)A which is the second voltage Vg(L) at which formation of the combined surface potential Vd(U+L) is started is acquired by changing the second voltage Vg(L) in a state that the first charge potential Vd(U) is formed on the surface of said photosensitive member and in which setting of the second voltage Vg(L) during the charging process is adjusted on the basis of the superimposition start voltage Vg(L).

Metadata:
- Claim Count in Document: 17.0
- Percentile: 99.0
- Lexical Diversity: 2.61644
- Patent Class: 399.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14953602', '15664419', '15808115', '11941373', '13216284']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8321226072274612
- 35 USC 102 Novelty (BERT): 0.5221679663073052
- Combined Prediction Score: 0.8011271431354456
- Mean Citation Score: 308.483194
- Max Citation Score: 369.44156
- Similarity Product: 311.5897648218417

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