PATENT CLAIM ANALYSIS

Application Number: 16278892
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["399", "071000"]

Abstract:
An image forming apparatus includes an image bearing member, a transfer roller, a power feeding roller, a power source, and a controller. The controller is configured to execute a cleaning mode of cleaning the power feeding roller by applying a bias from the power source to the power feeding roller to transfer toner adhering on the power feeding roller to the image bearing member in a non-image formation period. The controller executes the cleaning mode in such a manner that, when a rotation time in which the transfer roller rotates one round is t1 and a rotation time in which the power feeding roller rotates one round is t2, the cleaning mode comprises a period equal to or longer than (t1+t2) in which an opposite polarity bias having an opposite polarity to the transfer bias is continuously applied from the power source to the power feeding roller.

Claim (Index 5):
The image forming apparatus according to  claim 1 , wherein, in the cleaning mode executed by the controller, in a case where there are a plurality of periods in which the opposite polarity bias is continuously applied, a period in which the opposite polarity bias is applied for the first time is the longest.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 99.0
- Lexical Diversity: 2.46875
- Patent Class: 399.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15681749', '12828516', '13593791', '14256178', '11691133']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8253308978160627
- 35 USC 102 Novelty (BERT): 0.5388127866112795
- Combined Prediction Score: 0.7966790866955844
- Mean Citation Score: 315.660448
- Max Citation Score: 424.89655
- Similarity Product: 298.05528008435965

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