Invention Grant
- Patent Title: Image forming apparatus and image density control method
- Patent Title (中): 图像形成装置和图像浓度控制方法
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Application No.: US12246601Application Date: 2008-10-07
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Publication No.: US08027605B2Publication Date: 2011-09-27
- Inventor: Nobutaka Takeuchi , Shin Hasegawa , Hitoshi Ishibashi , Shuji Hirai , Kohta Fujimori , Kayoko Tanaka , Yushi Hirayama , Akira Yoshida
- Applicant: Nobutaka Takeuchi , Shin Hasegawa , Hitoshi Ishibashi , Shuji Hirai , Kohta Fujimori , Kayoko Tanaka , Yushi Hirayama , Akira Yoshida
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-276563 20071024
- Main IPC: G03G15/10
- IPC: G03G15/10 ; G03G15/08
Abstract:
An image forming apparatus and an image density control method for controlling image density in the image forming apparatus, involving adjusting a toner concentration control reference value in accordance with an amount of the toner replaced in a developing device so as to adjust the image density to maintain a consistent developability and changing image forming intervals in accordance with an amount of the toner replaced in the developing device during continuous printing operation.
Public/Granted literature
- US20090110413A1 IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD Public/Granted day:2009-04-30
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