PATENT CLAIM ANALYSIS

Application Number: 15925560
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["399", "066000"]

Abstract:
A charging bias output portion is controlled so that a direct-current component of a charging bias voltage reaches a target voltage value taking a first set time after output start. A transfer bias output portion is controlled so that output of a transfer bias is started after a first position of an image bearing member reaches a transfer position and before a second position reaches the transfer portion, and a transfer current reaches a target current value taking a second set time. The first position is a position of the image bearing member that passes through a charging portion between a charging member and the image bearing member at a timing when the output of the charging DC is started, and the second position is a position that passes through the charging portion at a timing when the charging DC reaches the target voltage value.

Claim (Index 1):
An image forming apparatus, comprising:\n an image bearing member that rotates; a charging member facing the image bearing member that forms a charging portion between the charging member and the image bearing member; a charging bias output portion that outputs a charging bias to the charging member to charge a surface of the image bearing member at the charging portion; a transfer member facing the image bearing member that to forms, between the transfer member and the image bearing member, a transfer portion at which a toner image borne on the image bearing member is transferred to a transferred medium; a transfer bias output portion that outputs a transfer bias to the transfer member, to transfer the toner image borne on the image bearing member to the transferred medium at the transfer portion; a current detection circuit that detects a transfer current flowing through the transfer portion; and a control portion that controls the charging bias output portion and the transfer bias output portion, wherein the control portion starts output of the transfer bias output portion after a leading end a charging raising region passes through the transfer portion and before a trailing end of the charging raising region passes through the transfer portion, the charging raising region being a region of the image bearing member that passes through the charging portion during a charging raising period after output of the charging bias output portion is started along with start of image formation until the charging bias output by the charging bias output portion reaches a target charging bias set during an image forming time, and wherein the control portion controls a transfer current flowing through the transfer portion to a predetermined current at a predetermined timing, based on a result of detection by the current detection circuit, during a transfer raising period after output of the transfer bias output portion is started along with the start of the image formation until the transfer bias output by the transfer bias output portion reaches a target transfer bias set during the image forming time.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 90.0
- Lexical Diversity: 3.33333
- Patent Class: 399.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15623840', '14173044', '12261290', '13857159', '15467109']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8272231785428275
- 35 USC 102 Novelty (BERT): 0.5072873462194547
- Combined Prediction Score: 0.7952295953104902
- Mean Citation Score: 291.43391200000013
- Max Citation Score: 331.2519999999999
- Similarity Product: 271.0947695081233

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

Dataset: test