公开(公告)号：US20060239701A1

公开(公告)日：2006-10-26

申请号：US11408081

申请日：2006-04-21

申请人： Mikio Ishibashi

发明人： Mikio Ishibashi

IPC分类号： G03G15/00 ,  G03G15/08

CPC分类号： G03G15/5058 ,  G03G15/0194 ,  G03G15/0849 ,  G03G15/0853 ,  G03G2215/00059 ,  G03G2215/0607

摘要： An image forming apparatus includes an image carrying member, a developing unit, an image density detector, a toner concentration detector, a toner concentration controller, and an output adjustment unit. The image carrying member forms a reference latent image pattern. The developing unit develops the reference latent image pattern as a reference image pattern with a two-component developer. The image density detector detects an image density of the reference image pattern. The toner concentration detector detects a toner concentration in the two-component developer. The toner concentration controller controls the toner concentration based on the image density detected by the image density detector. The output adjustment unit adjusts a toner concentration sensing level of the toner concentration detector with a sensor control voltage. The toner concentration is controlled by a target voltage with reference to the image density. The toner concentration range is changed by changing the sensor control voltage.

摘要翻译： 图像形成装置包括图像承载构件，显影单元，图像浓度检测器，调色剂浓度检测器，调色剂浓度控制器和输出调节单元。 图像承载构件形成参考潜像图案。 显影单元利用双组分显影剂显影参考图像图案作为参考图像图案。 图像浓度检测器检测参考图像图案的图像浓度。 调色剂浓度检测器检测双组分显影剂中的调色剂浓度。 调色剂浓度控制器基于由图像浓度检测器检测的图像浓度来控制调色剂浓度。 输出调节单元用传感器控制电压调节调色剂浓度检测器的调色剂浓度感测电平。 参考图像浓度，调色剂浓度由目标电压控制。 通过改变传感器控制电压来改变调色剂浓度范围。

公开(公告)号：US07856189B2

公开(公告)日：2010-12-21

申请号：US11520804

申请日：2006-09-14

申请人： Mikio Ishibashi

发明人： Mikio Ishibashi

IPC分类号： G03G15/10

CPC分类号： G03G15/5062 ,  G03G15/0853 ,  G03G15/0855 ,  G03G15/0865

摘要： An image forming apparatus includes an optical sensor configured to optically detect a density of a reference pattern image, a toner density sensor configured to detect a density of toner in a developing unit, a storing unit configured to store an image area coverage of an output image, a determining unit configured to determine whether a state of toner accommodated in a toner supplying unit is an almost empty state and an empty state or neither based on detection results obtained by the sensors, a controlling unit configured to continuously perform a toner state check when the image area coverage of the output image is greater than a predetermined image area coverage value and the density of the reference pattern image is greater than a predetermined density level after the determination of the state of toner is the almost empty state or the empty state or neither.

摘要翻译： 一种图像形成装置，包括：光学传感器，被配置为光学检测参考图案图像的浓度;调色剂浓度传感器，被配置为检测显影单元中的调色剂的浓度;存储单元，被配置为存储输出图像的图像区域覆盖 ，确定单元，被配置为基于由所述传感器获得的检测结果来确定容纳在调色剂供应单元中的调色剂的状态是否几乎为空状态和空状态;控制单元，被配置为连续执行调色剂状态检查， 输出图像的图像区域覆盖率大于预定图像区域覆盖值，并且在确定调色剂状态几乎为空状态或空状态之后，参考图案图像的浓度大于预定浓度水平，或 没有。

公开(公告)号：US20070058998A1

公开(公告)日：2007-03-15

申请号：US11520804

申请日：2006-09-14

申请人： Mikio Ishibashi

发明人： Mikio Ishibashi

IPC分类号： G03G15/08

CPC分类号： G03G15/5062 ,  G03G15/0853 ,  G03G15/0855 ,  G03G15/0865

摘要： An image forming apparatus includes an optical sensor configured to optically detect a density of a reference pattern image, a toner density sensor configured to detect a density of toner i.n a developing unit, a storing unit configured to store an image area coverage of an output image, a determining unit configured to determine whether a state of toner accommodated in a toner supplying unit is an almost empty state and an empty state or neither based on detection results obtained by the sensors, a controlling unit configured to continuously perform a toner state check when the image area coverage of the output image is greater than a predetermined image area coverage value and the density of the reference pattern image is greater than a predetermined density level after the determination of the state of toner is the almost empty state or the empty state or neither.

摘要翻译： 一种图像形成装置，包括：光学传感器，被配置为光学检测参考图案图像的浓度;调色剂浓度传感器，被配置为检测显影单元中的调色剂的浓度;存储单元，被配置为存储输出图像的图像区域覆盖 ，确定单元，被配置为基于由所述传感器获得的检测结果来确定容纳在调色剂供应单元中的调色剂的状态是否几乎为空状态和空状态;控制单元，被配置为连续执行调色剂状态检查， 输出图像的图像区域覆盖率大于预定图像区域覆盖值，并且在确定调色剂状态几乎为空状态或空状态之后，参考图案图像的浓度大于预定浓度水平，或 没有。