Title:
Image forming device
Document Type and Number:
Japanese Patent JP6200138
Kind Code:
B2
Abstract:
An image forming apparatus, including: an image forming unit configured to form toner images on an image bearing member and toner patterns for detecting a relative position of the toner images; a detection unit having a light emission unit and a light receiving unit configured to receive reflection light from the image bearing member and the toner patterns to output an analog signal; a conversion unit configured to convert the analog signal into a digital signal based on a threshold value; a correction unit configured to correct a misregistration between the toner images on a recording medium based on the digital signal; and a control unit configured to control, when values of the analog signal includes a value lower than the threshold value, light intensity of the light emission unit so that the values of the analog signal become higher than the threshold value.
Inventors:
Ryosuke Nanai
Application Number:
JP2012203902A
Publication Date:
September 20, 2017
Filing Date:
September 18, 2012
Export Citation:
Assignee:
Canon Inc
International Classes:
G03G15/00; G03G15/01; G03G15/16
Domestic Patent References:
| JP2003241470A | ||||
| JP2003241472A | ||||
| JP2008287186A | ||||
| JP2008287183A | ||||
| JP2009109822A | ||||
| JP2003186280A |
Foreign References:
| US20080292369 |
Attorney, Agent or Firm:
Okabe
Shinichi Usui
Takao Ochi
Seiichiro Takahashi
Koji Yoshizawa
Masami Saito
Katsuhiko Kimura
Naofumi Tanaka
Shinichi Usui
Takao Ochi
Seiichiro Takahashi
Koji Yoshizawa
Masami Saito
Katsuhiko Kimura
Naofumi Tanaka
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