公开(公告)号：US08562091B2

公开(公告)日：2013-10-22

申请号：US12720516

申请日：2010-03-09

申请人： Mirza Sabanovic ,  Marie E. Ottum

发明人： Mirza Sabanovic ,  Marie E. Ottum

IPC分类号： B41J2/195 ,  B41J29/393 ,  B41J2/175

CPC分类号： B41J2/17566 ,  G01F23/246

摘要： A method detects the level of ink in a print head reservoir by monitoring the power drawn by a thermistor positioned within the print head reservoir by an electrical conductor. The method includes dissipating heat in a thermistor positioned within an ink reservoir, the thermistor having an electrical conductor that extends from the thermistor, a length of the electrical conductor extending through at least a portion of the ink reservoir, providing electrical power through the electrical conductor to the thermistor to maintain the thermistor at a predetermined temperature that is a fixed differential above a temperature of the ink reservoir, measuring a parameter that corresponds to the heat dissipated from the thermistor and the length of the electrical conductor extending through the portion of the ink reservoir, and correlating the measured parameter to a predetermined value corresponding to an ink level in the ink reservoir to detect a position of the ink level in the reservoir continuously along the length of the electrical conductor and the thermistor.

摘要翻译： 方法通过监测位于打印头储存器内的热敏电阻由电导体拉出的功率来检测打印头储存器中的墨水量。 该方法包括在定位在储墨器内的热敏电阻中散热，热敏电阻具有从热敏电阻延伸的电导体，电导体的一段长度延伸穿过墨水容器的至少一部分，通过电导体提供电力 以将热敏电阻保持在高于墨水储存器的温度的固定差分的预定温度，测量对应于从热敏电阻消散的热量的参数和延伸穿过墨水部分的电导体的长度 并且将测量参数与对应于墨水储存器中的墨水水平的预定值相关联，以沿着电导体和热敏电阻的长度连续地检测储存器中的墨水位置的位置。

公开(公告)号：US20110221802A1

公开(公告)日：2011-09-15

申请号：US12720516

申请日：2010-03-09

申请人： Mirza Sabanovic ,  Marie E. Ottum

发明人： Mirza Sabanovic ,  Marie E. Ottum

IPC分类号： G01F23/22 ,  B41J29/00 ,  G01F23/00

CPC分类号： B41J2/17566 ,  G01F23/246

摘要： A method detects the level of ink in a print head reservoir by monitoring the power drawn by a thermistor positioned within the print head reservoir by an electrical conductor. The method includes dissipating heat in a thermistor positioned within an ink reservoir, the thermistor having an electrical conductor that extends from the thermistor, a length of the electrical conductor extending through at least a portion of the ink reservoir, providing electrical power through the electrical conductor to the thermistor to maintain the thermistor at a predetermined temperature that is a fixed differential above a temperature of the ink reservoir, measuring a parameter that corresponds to the heat dissipated from the thermistor and the length of the electrical conductor extending through the portion of the ink reservoir, and correlating the measured parameter to a predetermined value corresponding to an ink level in the ink reservoir to detect a position of the ink level in the reservoir continuously along the length of the electrical conductor and the thermistor.

摘要翻译： 方法通过监测位于打印头储存器内的热敏电阻由电导体拉出的功率来检测打印头储存器中的墨水量。 该方法包括在定位在储墨器内的热敏电阻中散热，热敏电阻具有从热敏电阻延伸的电导体，电导体的一段长度延伸穿过墨水容器的至少一部分，通过电导体提供电力 以将热敏电阻保持在高于墨水储存器的温度的固定差分的预定温度，测量对应于从热敏电阻消散的热量的参数以及延伸穿过墨水部分的电导体的长度 并且将测量参数与对应于墨水储存器中的墨水水平的预定值相关联，以沿着电导体和热敏电阻的长度连续地检测储存器中的墨水位置的位置。