Title:
画像形成装置、電源異常検出方法
Document Type and Number:
Japanese Patent JP6575259
Kind Code:
B2
Abstract:
An image-forming apparatus includes a first opened/closed signal generation unit for generating a first opened/closed signal indicating an opened/closed state of the open/close member by using polling detection; a second opened/closed signal generation unit for generating a second opened/closed signal in which a state indicating the opened state of the open/close member is latched when a second signal via the switch is cut off; and a power-supply failure detection unit for detecting a power-supply failure based on the first and/or second opened/closed signals. The second opened/closed signal indicates in an initial state the closed state of the open/close member, and is returned to the initial state by an initialization command, and the power-supply failure detection unit detects the power-supply failure based on the second opened/closed signal during an image forming period, and based on the first and second opened/closed signals during a period other than the image forming period.
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Inventors:
Takuma Nishio
Application Number:
JP2015184968A
Publication Date:
September 18, 2019
Filing Date:
September 18, 2015
Export Citation:
Assignee:
株式会社リコー
International Classes:
B41J29/38; B41J2/47; G03G21/00
Domestic Patent References:
| JP2012083716A | ||||
| JP2014010240A | ||||
| JP2000263844A | ||||
| JP2001290399A |
Foreign References:
| US20140003825 | ||||
| US20120062929 | ||||
| US20080019709 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito