专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

EP3043211B1 IMAGE FORMING DEVICE 有权
公开(公告)号：EP3043211B1
公开(公告)日：2018-11-14
申请号：EP14841722.3
申请日：2014-09-05
申请人： Canon Kabushiki Kaisha
发明人： OKADA, Noriyuki
IPC分类号： G03G15/08 , G03G21/14
CPC分类号： G03G15/556 , G03G15/0853 , G03G15/0907
摘要： An image forming apparatus includes an image bearing member capable of carrying an electrostatic image; a developing device configured to develop an electrostatic image formed on the image bearing member into a toner image, using a developer including toner and carrier; an exchangeable supply container configured to supply the developer into the developing device; a content sensor capable of detecting information relating to a toner content in the developing device; an exchange detecting portion configured to detect information for discriminating an event of exchanging operation of the supply container; and a controller configured to control a supplying operation from the supply container, on the basis of a detection result of the content sensor, wherein the controller is capable of prohibiting an image forming operation on the basis of the detection result of the content sensor and is capable of releasing the prohibition of the image forming operation on the basis of the detection result of the exchange sensor, and wherein after releasing the prohibition of the image forming operation on the basis of the detection result of the exchange sensor, the controller continues permission of the image forming operation irrespective of the detection result of the content sensor when the information relating to a toner consumption amount cumulated every image formations indicates a amount less than a predetermined amount, and when the toner consumption amount after the release of the prohibition of the image forming operation reaches the predetermined amount, the controller determines whether to prohibit the image forming operation on the basis of the detection result of the content sensor after the toner consumption amount reaches the predetermined amount.

2. 发明公开

EP3043210A1 IMAGE FORMING DEVICE 审中-公开
标题翻译：成像装置
公开(公告)号：EP3043210A1
公开(公告)日：2016-07-13
申请号：EP14841894.0
申请日：2014-09-03
申请人： Canon Kabushiki Kaisha
发明人： OKADA, Noriyuki
IPC分类号： G03G15/00 , G03G15/08
CPC分类号： G03G15/065 , G03G15/0849 , G03G15/09
摘要： An image forming apparatus includes an image bearing member configured to carry an image; a developing device configured to develop a latent image formed by exposing the image bearing member electrically charged to light, with a developer including toner and carrier; a sensor configured to detect information relating to an amount of magnetization of the developer per unit volume in the developing device; and a controller configured to control an image forming condition so as to change, on the basis of a detection result of the sensor, a development contrast which is a potential difference between an image portion potential of a maximum image density in the latent image and a development DC bias potential applied to the developing device, wherein the controller controls the image forming condition on the basis of the detection result of the sensor such that when the amount of magnetization of the developer per unit volume in the developing device is a first predetermined value, the development contrast is smaller than that when the amount is a second predetermined value which is larger than the first predetermined value.
摘要翻译：一种图像形成设备，包括：图像承载部件，被构造为承载图像; 显影装置，所述显影装置被配置为利用包括调色剂和载体的显影剂来显影通过将所述图像承载部件暴露在光下而形成的潜像; 传感器，被配置为检测与显影装置中每单位体积的显影剂的磁化量有关的信息; 以及控制器，被配置为控制图像形成条件以便基于传感器的检测结果改变显影对比度，该显影对比度是潜像中的最大图像浓度的图像部分电位与潜像之间的电位差其中，所述控制器基于所述传感器的检测结果来控制所述图像形成条件，使得当所述显影装置中每单位体积的所述显影剂的磁化量是第一预定值时显影对比度小于当该量是大于第一预定值的第二预定值时的显影对比度。

3. 发明授权

EP3457216B1 IMAGE FORMING APPARATUS 有权
公开(公告)号：EP3457216B1
公开(公告)日：2020-11-11
申请号：EP18197477.5
申请日：2014-09-05
申请人： Canon Kabushiki Kaisha
发明人： OKADA, Noriyuki
IPC分类号： G03G15/08 , G03G21/14

4. 发明公开

EP3457216A1 IMAGE FORMING APPARATUS 有权
公开(公告)号：EP3457216A1
公开(公告)日：2019-03-20
申请号：EP18197477.5
申请日：2014-09-05
申请人： Canon Kabushiki Kaisha
发明人： OKADA, Noriyuki
IPC分类号： G03G15/08 , G03G21/14
摘要： An image forming apparatus includes an image bearing member capable of carrying an electrostatic image; a developing device configured to develop an electrostatic image formed on the image bearing member into a toner image, using a developer including toner and carrier; an exchangeable supply container configured to supply the developer into the developing device; a content sensor capable of detecting information relating to a toner content in the developing device; an exchange detecting portion configured to detect information for discriminating an event of exchanging operation of the supply container; and a controller configured to control a supplying operation from the supply container, on the basis of a detection result of the content sensor, wherein the controller is capable of prohibiting an image forming operation on the basis of the detection result of the content sensor and is capable of releasing the prohibition of the image forming operation on the basis of the detection result of the exchange sensor, and wherein after releasing the prohibition of the image forming operation on the basis of the detection result of the exchange sensor, the controller continues permission of the image forming operation irrespective of the detection result of the content sensor when the information relating to a toner consumption amount cumulated every image formations indicates a amount less than a predetermined amount, and when the toner consumption amount after the release of the prohibition of the image forming operation reaches the predetermined amount, the controller determines whether to prohibit the image forming operation on the basis of the detection result of the content sensor after the toner consumption amount reaches the predetermined amount.

5. 发明公开

EP3376301A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：EP3376301A1
公开(公告)日：2018-09-19
申请号：EP18150855.7
申请日：2018-01-09
申请人： CANON KABUSHIKI KAISHA
发明人： OKADA, Noriyuki
IPC分类号： G03G15/08 , G03G15/00
CPC分类号： G03G15/556 , G03G15/0121 , G03G15/0849 , G03G15/0855 , G03G15/5041 , G03G15/5058 , G03G15/553
摘要： An image forming apparatus includes a control unit configured to be able to perform density adjustment control of forming a reference toner image for image density control on an image bearing member and changing a target value of a toner density based on an image density of the reference toner image detected by an image density detection unit. The control unit limits the target value of the toner density within a predetermined range, and changes frequency of execution of the density adjustment control based on the fact that the target value of the toner density is placed at a boundary value.

6. 发明公开

EP3043211A1 IMAGE FORMING DEVICE 有权
标题翻译：成像装置
公开(公告)号：EP3043211A1
公开(公告)日：2016-07-13
申请号：EP14841722.3
申请日：2014-09-05
申请人： Canon Kabushiki Kaisha
发明人： OKADA, Noriyuki
IPC分类号： G03G15/08 , G03G21/14
CPC分类号： G03G15/556 , G03G15/0853 , G03G15/0907
摘要： An image forming apparatus includes an image bearing member capable of carrying an electrostatic image; a developing device configured to develop an electrostatic image formed on the image bearing member into a toner image, using a developer including toner and carrier; an exchangeable supply container configured to supply the developer into the developing device; a content sensor capable of detecting information relating to a toner content in the developing device; an exchange detecting portion configured to detect information for discriminating an event of exchanging operation of the supply container; and a controller configured to control a supplying operation from the supply container, on the basis of a detection result of the content sensor, wherein the controller is capable of prohibiting an image forming operation on the basis of the detection result of the content sensor and is capable of releasing the prohibition of the image forming operation on the basis of the detection result of the exchange sensor, and wherein after releasing the prohibition of the image forming operation on the basis of the detection result of the exchange sensor, the controller continues permission of the image forming operation irrespective of the detection result of the content sensor when the information relating to a toner consumption amount cumulated every image formations indicates a amount less than a predetermined amount, and when the toner consumption amount after the release of the prohibition of the image forming operation reaches the predetermined amount, the controller determines whether to prohibit the image forming operation on the basis of the detection result of the content sensor after the toner consumption amount reaches the predetermined amount.
摘要翻译：一种图像形成设备包括：图像承载部件，能够承载静电图像; 显影装置，其被配置为使用包括调色剂和载体的显影剂将形成在所述图像承载部件上的静电图像显影为调色剂图像; 可交换供应容器，其被构造成将显影剂供应到显影装置中; 能够检测与显影装置中的调色剂含量有关的信息的内容传感器; 交换检测部分，配置为检测用于识别供应容器的交换操作的事件的信息; 以及控制器，被配置为基于内容传感器的检测结果来控制来自供给容器的供给操作，其中控制器能够基于内容传感器的检测结果禁止图像形成操作，并且是其能够基于所述交换传感器的检测结果解除禁止所述图像形成操作，并且其中，在基于所述交换传感器的检测结果解除了所述图像形成操作的禁止之后，所述控制器继续当与每个图像形成累积的调色剂消耗量相关的信息指示小于预定量的量时，不管内容传感器的检测结果如何，图像形成操作与当图像禁止解除后的调色剂消耗量成形操作达到预定量时，控制器确定t o在调色剂消耗量达到预定量之后，基于内容传感器的检测结果禁止图像形成操作。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式