Title:
走査装置及び画像形成装置
Document Type and Number:
Japanese Patent JP6921716
Kind Code:
B2
Abstract:
The scanning apparatus includes a control unit that controls an emission state of a light source to perform switching between first and a second emission states, wherein as a signal according to a light amount, an output unit outputs a first value when light received by the output unit has a first light amount and outputs a second value when the light received by the output unit has a second light amount larger than the first light amount, and the control unit performs switching from the first emission state to the second emission state when an output time period of a signal of the second value corresponding to the second light amount is equal to or more than a predetermined time period.
Inventors:
Shunsuke Tanaka
Application Number:
JP2017217947A
Publication Date:
August 18, 2021
Filing Date:
November 13, 2017
Export Citation:
Assignee:
Canon Inc
International Classes:
G02B26/12; B41J2/47; G03G15/04; G03G21/00; H04N1/053; H04N1/113
Domestic Patent References:
| JP2007062167A | ||||
| JP2004085788A | ||||
| JP2008273083A | ||||
| JP2014119491A | ||||
| JP11129540A |
Foreign References:
| US5864355 |
Attorney, Agent or Firm:
Toshikazu Kaji
Eiko Nakamura
Eiko Nakamura