PATENT CLAIM ANALYSIS

Application Number: 15977083
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["399", "044000"]

Abstract:
A fixing apparatus is operable in relation to either of a first nominal voltage and a second nominal voltage, as an alternating voltage of a commercial alternating current power supply. The apparatus detects the alternating voltage and a temperature of a first heater or a first rotating member. A driving circuit supplies to the first heater a power if a drive signal is being inputted, and to not supply to the first heater the power if the drive signal is not being inputted. A controller determines a duty ratio of the drive signal to be a first duty ratio or a second duty ratio smaller than the first duty ratio.

Claim (Index 11):
An image forming apparatus, comprising:\n an image carrier; a charging unit configured to uniformly charge the image carrier; a scanning unit configured to form an electrostatic latent image by scanning a laser beam on a surface of the image carrier; a developer unit configured to form a toner image by developing the electrostatic latent image by causing toner to adhere; a transfer unit configured to transfer the toner image onto a sheet; and a fixing unit configured fix the toner image that is being carried onto the sheet, wherein the fixing unit is a fixing device operable in relation to either of a first nominal voltage and a second nominal voltage, as an alternating voltage of a commercial alternating current power supply, the fixing device comprising: a first rotating member; a second rotating member arranged to face the first rotating member and configured to convey a sheet while nipping the sheet with the first rotating member; a first heater configured to be supplied with an alternating voltage from the commercial alternating current power supply and to heat the first rotating member; a voltage detector configured to detect the alternating voltage of the commercial alternating current power supply; a temperature detector configured to detect a temperature of the first heater or the first rotating member; a driving circuit configured to supply to the first heater a power based on an alternating current supplied from the commercial alternating current power supply if a drive signal is being inputted, and to not supply to the first heater the power if the drive signal is not being inputted; a controller configured to determine a duty ratio of the drive signal to be a first duty ratio if the alternating voltage of the commercial alternating current power supply detected by the voltage detector is less than a predetermined voltage, and to determine the duty ratio of the drive signal to be a second duty ratio smaller than the first duty ratio if the alternating voltage detected by the voltage detector is higher than the predetermined voltage, and to supply to the driving circuit the drive signal set to the determined duty ratio if the temperature detected by the temperature detector is less than a first temperature, and to not supply to the driving circuit the drive signal if the temperature detected by the temperature detector is not less than the first temperature, wherein the predetermined voltage is a value that is higher than the first nominal voltage and lower than the second nominal voltage.

Metadata:
- Claim Count in Document: 21.0
- Percentile: 93.0
- Lexical Diversity: 2.36735
- Patent Class: 399.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15271219', '12585221', '15359681', '10987153', '14702877']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8043124410380493
- 35 USC 102 Novelty (BERT): 0.4662083332024789
- Combined Prediction Score: 0.7705020302544924
- Mean Citation Score: 196.712778
- Max Citation Score: 216.35268
- Similarity Product: 178.311722134037

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