Title:
画像形成装置
Document Type and Number:
Japanese Patent JP6939347
Kind Code:
B2
Abstract:
A heating system includes a heater, a switching circuit providing alternating current to the heater, and a current sensor. The heating system also includes a controller that controls operation of the switching circuit. At a predetermined time during a half cycle, the controller outputs an activation signal to the switching circuit. Based on an elapsed time from outputting the activation signal that a current signal is at least at a predetermined level, the controller calculates a second time from which a current level does not exceed a threshold level during the half cycle, and outputs an activation signal to the switching circuit at the second time. The heating system is useable within an image forming apparatus.
Inventors:
What kind of
Application Number:
JP2017189440A
Publication Date:
September 22, 2021
Filing Date:
September 29, 2017
Export Citation:
Assignee:
Brother Industries, Ltd.
International Classes:
G05F1/44; G03G15/00; G03G15/20; G03G21/14; H05B3/00
Domestic Patent References:
| JP2012208450A | ||||
| JP2012118112A | ||||
| JP2016010034A | ||||
| JP2012098529A |
Foreign References:
| US20080296280 | ||||
| CN101051206A |
Attorney, Agent or Firm:
Keisuke Ogawa
Tatsuya Inagaki
Tatsuya Inagaki