发明授权
- 专利标题： Method for controlling light emitting portion for liquid container and printing apparatus
- 专利标题（中）： 用于控制液体容器和打印装置的发光部分的方法
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申请号： US11455864申请日： 2006-06-20
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公开(公告)号： US07651207B2公开(公告)日： 2010-01-26
- 发明人: Nobuyuki Hatasa , Kenjiro Watanabe , Kenji Kitabatake , Kimiyuki Hayasaki , Takayuki Ochiai
- 申请人： Nobuyuki Hatasa , Kenjiro Watanabe , Kenji Kitabatake , Kimiyuki Hayasaki , Takayuki Ochiai
- 申请人地址： JP Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Fitzpatrick, Cella, Harper & Scinto
- 优先权： JP2005-183982 20050623
- 主分类号： B41J2/175
- IPC分类号： B41J2/175
摘要：
A variation in brightness among light emitting portions provided in a plurality of liquid containers can be reduced to decrease power required to drive the light emitting portions, while allowing the light emitting portions to appropriately function as reporting units. Thus, to illuminate the light emitting portions provided in the plurality of ink tanks, a driving pulse for each of the plurality of light emitting portions is modulated to control rates of a light emission period and a light emission halted period during a unit time. Further, the light emission period of at least one of the plurality of light emitting portions overlaps the light emission halted period of at least another one of the plurality of light emitting portions.
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