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1. 发明专利

JP2011223401A Image forming apparatus and image forming method 有权
标题翻译：图像形成装置和图像形成方法
公开(公告)号：JP2011223401A
公开(公告)日：2011-11-04
申请号：JP2010091589
申请日：2010-04-12
申请人： Konica Minolta Business Technologies Inc , コニカミノルタビジネステクノロジーズ株式会社
发明人： KAWAI NAOTOSHI , GOTO HIROSHI , IMURA TOMOYUKI , KATO TOMOHIRO , KUSANO ERI
IPC分类号： H04N1/405 , B41J2/52
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus and an image forming method capable of reproducing an intermediate gradation with higher resolution while maintaining stability of a process.SOLUTION: An image forming apparatus according to a present embodiment has a first screen group in which a first region is expanded based on a first rule according to an increase of a gradation value, and a second screen group in which a first region is expanded based on a second rule that is different from and independent of the first rule according to an increase of a gradation value. With respect to a unit region of an input image, when a gradation value to be reproduced is smaller than a first threshold, a screen is selected from the first screen group, and when the gradation value is larger than the first threshold, a screen is selected from the second screen group.
摘要翻译：要解决的问题：提供一种能够以更高分辨率再现中间灰度的图像形成装置和图像形成方法，同时保持处理的稳定性。解决方案：根据本实施例的图像形成装置具有第一屏幕组，其中根据灰度值的增加基于第一规则扩展第一区域;以及第二屏幕组，其中第一区域基于与第一规则不同并且独立于根据渐变值的增加的第二规则被扩展。对于输入图像的单位区域，当要再现的灰度值小于第一阈值时，从第一屏幕组中选择屏幕，并且当灰度值大于第一阈值时，屏幕是从第二个屏幕组中选择。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011223400A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2011223400A
公开(公告)日：2011-11-04
申请号：JP2010091588
申请日：2010-04-12
申请人： Konica Minolta Business Technologies Inc , コニカミノルタビジネステクノロジーズ株式会社
发明人： IMURA TOMOYUKI , KAWAI NAOTOSHI , KATO TOMOHIRO , KUSANO ERI
IPC分类号： H04N1/405 , B41J2/52 , G03G15/01 , G06T5/00 , H04N1/52 , H04N1/60
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of reproducing intermediate gradation in higher resolution, while keeping process stability.SOLUTION: The image forming apparatus selects a screen from multiple screens of a first color including patterns having a first screen angle in common and from multiple screens of a second colors having a second screen angle different from the first screen angle in common, in image formation processing to overlay toner images of multiple colors.
摘要翻译：要解决的问题：提供能够以更高分辨率再现中间灰度，同时保持处理稳定性的图像形成装置。解决方案：图像形成装置从具有第一屏幕角度共同的图案和具有不同于第一屏幕角度的第二屏幕角度的第二颜色的多个屏幕的多个屏幕的多个屏幕中选择屏幕，在图像形成处理中以覆盖多种颜色的调色剂图像。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2011218699A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011218699A
公开(公告)日：2011-11-04
申请号：JP2010091587
申请日：2010-04-12
申请人： Konica Minolta Business Technologies Inc , コニカミノルタビジネステクノロジーズ株式会社
发明人： KATO TOMOHIRO , KAWAI NAOTOSHI , IMURA TOMOYUKI , KUSANO ERI
IPC分类号： B41J2/52 , G03G21/00 , G06T5/00 , H04N1/407
CPC分类号： G03G15/043 , H04N1/4055
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that can duplicate middle gradation in higher resolution while maintaining the stability of a process.SOLUTION: In the image forming apparatus according to the embodiment, as a result in which a screen has been selected for every unit region of an input image, when a screen contained in a first screen group is selected to a first part and a screen contained in a second screen group is selected to a second part which adjoins the first part, the first region is rearranged before execution of imaging by an imaging part so that a second region having an interval beforehand defined may exist between the first region for expressing the first part and the first region for expressing the second part.
摘要翻译：要解决的问题：提供一种能够以更高分辨率重复中间灰度同时保持处理的稳定性的图像形成装置。解决方案：在根据本实施例的图像形成装置中，作为对输入图像的每个单位区域选择了屏幕的结果，当将包含在第一屏幕组中的屏幕选择为第一部分时，以及选择包含在第二屏幕组中的屏幕到与第一部分相邻的第二部分，在由成像部分执行成像之前重新布置第一区域，使得具有预先定义的间隔的第二区域可以存在于第一区域之间表达第一部分和第一部分表达第二部分。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2010072402A Developing device and image forming apparatus 有权
标题翻译：开发设备和图像形成装置
公开(公告)号：JP2010072402A
公开(公告)日：2010-04-02
申请号：JP2008240546
申请日：2008-09-19
申请人： Konica Minolta Business Technologies Inc , コニカミノルタビジネステクノロジーズ株式会社
发明人： IMURA TOMOYUKI
IPC分类号： G03G15/06 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To securely prevent occurrence of image memory in the case of adopting a hybrid development. SOLUTION: The developing device 34 that visualizes an electrostatic latent image on an electrostatic latent image carrier 12 by use of developer containing toner and carrier is equipped with: a developer carrier 54 that bears developer; a toner carrier 48 that is disposed opposite the developer carrier 54 via a supply recovery area 88 and also facing the electrostatic latent image carrier 12 via a development area 96 and that bears toner, which is supplied from the developer carrier 54, in the supply recovery area 88; and an electric field generating means 110 that generates a first alternating electric field between the developer carrier 54 and toner carrier 48 in order to supply and recover toner therebetween, and that also generates a second alternating electric field between the toner carrier 48 and the electrostatic latent image carrier 12 in order to transfer toner from the toner carrier 48 to the electrostatic latent image carrier 12. The frequency of the first alternating electric field is made larger than that of the second alternating electric field. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了在采用混合开发的情况下可靠地防止图像存储器的发生。解决方案：通过使用含有调色剂和载体的显影剂在静电潜像载体12上显现静电潜像的显影装置34装备有：显影剂载体54，其显影剂; 调色剂载体48经由供应恢复区88与显影剂载体54相对设置，并且经由显影区域96面向静电潜像载体12，并且承载从显影剂载体54供给的调色剂在供给回收区域88; 以及电场产生装置110，其在显影剂载体54和调色剂载体48之间产生第一交变电场，以便在其间供应和回收调色剂，并且还在调色剂载体48和静电潜像之间产生第二交变电场图像载体12，以将调色剂从调色剂载体48转印到静电潜像载体12.第一交变电场的频率大于第二交变电场的频率。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2006317524A Developing device and image forming apparatus 审中-公开
标题翻译：开发设备和图像形成装置
公开(公告)号：JP2006317524A
公开(公告)日：2006-11-24
申请号：JP2005137322
申请日：2005-05-10
申请人： Konica Minolta Business Technologies Inc , コニカミノルタビジネステクノロジーズ株式会社
发明人： IMURA TOMOYUKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device which can more excellently develop an electrostatic latent image by accelerating the turnover of developer carried on a developing roller, so as to suppress the adhesion of excessively charged developer to the developing roller, and to provide an image forming apparatus which can form a high quality image by mounting the developing device. SOLUTION: The developing device 300, which develops the electrostatic latent image formed on a photoreceptor 100 by using the developer, includes a developing roller 301, a developer supplying member 303, a charging member 306, a developing bias applying device B1, a charging bias applying device B2, a supplying bias applying device B3 and a bias control section CT. The control section CT controls at least one of an AC developing bias voltage V1 from the applying device B1, an AC charging bias voltage V2 from the applying device B2 and an AC supplying bias voltage V3 from the applying device 3, to accelerate the turnover of the developer (toner t) on the developing roller 301, in accordance with the acceleration factor of the turnover of the developer, for accelerating the turnover of the developer. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过加速显影辊上携带的显影剂的翻转而更好地显影静电潜像的显影装置，以便抑制过度充电的显影剂对显影辊的粘附，以及以提供能够通过安装显影装置形成高质量图像的图像形成装置。解决方案：通过使用显影剂显影在感光体100上形成的静电潜像的显影装置300包括显影辊301，显影剂供给部件303，充电部件306，显影偏压施加装置B1，充电偏压施加装置B2，供给偏压施加装置B3和偏压控制部CT。控制部CT控制来自施加装置B1的AC显影偏压V1，来自施加装置B2的AC充电偏压V2和来自施加装置3的AC供给偏压V3中的至少一个，以加速根据显影剂周转的加速因素，显影辊301上的显影剂（调色剂t），用于加速显影剂的翻转。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006301443A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2006301443A
公开(公告)日：2006-11-02
申请号：JP2005125564
申请日：2005-04-22
申请人： Konica Minolta Business Technologies Inc , コニカミノルタビジネステクノロジーズ株式会社
发明人： IMURA TOMOYUKI
IPC分类号： G03G15/08 , G03G15/01
CPC分类号： G03G15/0806
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that ensures high image quality and is inexpensive, by operating each developing device such that developer is charged in suitable quantity needed for the development of each electrostatic latent image, the electrostatic latent image is developed while the occurrence of fog is hindered, and the electrostatic latent image is satisfactorily developed. SOLUTION: The image forming apparatus has the plurality of developing devices 14. Each developing device 14 includes: a developing roller 141; a charging member 146 that charges developer (toner t) to be conveyed to a developing area; a developing bias application device (YB1, etc.) that applies an AC developing bias voltage V1; and a charging bias application device (YB2, etc.) that applies an AC charging bias voltage V2(V2') to the charging member 146, the AC charging bias voltage V2(V2') being synchronized with the AC developing bias voltage in phase and having a charging bias voltage value Vc in phase at least on one side. The values Vc of the charging bias voltages to cause an offset potential difference, which are applied by the charging bias application devices of the developing devices are the same in phase only on the one side. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种确保高图像质量并且便宜的图像形成装置，通过操作每个显影装置，使得以每个静电潜像显影所需的适量的显影剂进行充电，静电潜像在雾的发生受到阻碍的同时被显影，并且静电潜像令人满意地发展。图像形成装置具有多个显影装置14.每个显影装置14包括：显影辊141; 充电构件146，其对显影剂（调色剂t）进行充电以将其传送到显影区域; 施加AC显影偏压V1的显影偏压施加装置（YB1等）以及向充电部件146施加AC充电偏压V2（V2'）的充电偏压施加装置（YB2等），AC充电偏置电压V2（V2'）与AC显影偏压同相并且至少在一侧具有相位的充电偏压电压值Vc。由显影装置的充电偏压施加装置施加的引起偏移电位差的充电偏置电压的值Vc仅在一侧相位相同。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2011059163A Developing device and control method for the same 有权
标题翻译：开发设备及其控制方法
公开(公告)号：JP2011059163A
公开(公告)日：2011-03-24
申请号：JP2009205701
申请日：2009-09-07
申请人： Konica Minolta Business Technologies Inc , コニカミノルタビジネステクノロジーズ株式会社
发明人： IMURA TOMOYUKI , SAITO KAZUHIRO , OKADA TAKUYA , SASAKI TAKUYA , TSUTSUI CHIKARA , TAKAI TAKAYUKI
IPC分类号： G03G15/06 , G03G15/08
CPC分类号： G03G15/065 , G03G15/0806 , G03G2215/0607 , G03G2215/0648
摘要： PROBLEM TO BE SOLVED: To perform stable development by suppressing occurrence of an image memory or leakage due to gap variation between a conveying roller and a developing roller in a developing device having a hybrid developing type. SOLUTION: The developing device includes: a conveying roller 54 for conveying a developer including a toner and a carrier; developing rollers 48a, 48b facing the conveying roller and facing a photoreceptor 12; an electric field forming means constituted of a power source 120 for the conveying roller and power sources 130, 140 for the developing roller and for moving the toner in the developer held on the conveying roller to the developing roller; and an electric field forming means for moving the toner held on the developing roller to an electrostatic latent image of the photoreceptor. The developing device controls operation of the electric field forming means for moving the toner in the developer held on the conveying roller to the developing roller on the basis of a current allowed to flow to the power source for the conveying roller detected with a first detection block 125. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过抑制图像存储器的发生或由于具有混合显影类型的显影装置中的输送辊和显影辊之间的间隙变化而导致的泄漏来进行稳定的显影。解决方案：显影装置包括：输送辊54，用于输送包括调色剂和载体的显影剂; 面向输送辊并面向感光体12的显影辊48a，48b; 由用于输送辊的电源120和用于显影辊的电源130,140构成的电场形成装置和用于将保持在输送辊上的显影剂中的调色剂移动到显影辊上的电场形成装置; 以及用于将保持在显影辊上的调色剂移动到感光体的静电潜像的电场形成装置。显影装置控制电场形成装置的操作，用于基于允许流向用第一检测块检测的输送辊的电源的电流将用于将保持在输送辊上的显影剂中的调色剂移动到显影辊（C）2011年，JPO＆INPIT

8. 发明专利

JP2009192701A Developing device and image forming apparatus 审中-公开
标题翻译：开发设备和图像形成装置
公开(公告)号：JP2009192701A
公开(公告)日：2009-08-27
申请号：JP2008031750
申请日：2008-02-13
申请人： Konica Minolta Business Technologies Inc , コニカミノルタビジネステクノロジーズ株式会社
发明人： MISHIRO MEGUMI , KATO TOMOHIRO , IMURA TOMOYUKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device that can prevent excessive discharge of developer by a simple configuration when a trickle system developing device using two-component developer inclines, and to provide an image forming apparatus. SOLUTION: The developing device includes a stirring member for conveying developer in a developing tank while stirring it, and a developer carrier. The developing device includes: a developer supply tank that supplies the developing tank with supply developer; an outlet that is disposed in the developing tank and through which an excess of developer in the developing tank is discharged; a developer pooling section that has a space for temporarily storing the excess of developer; and a pooling section stirring member that conveys the developer in the pooling section from the outlet to an exhaust port. The amount that developer in the developing tank is conveyed toward the outlet by the developing tank stirring member per unit time is larger than the amount that developer in the pooling section is conveyed toward the exhaust port by the pooling section stirring member per unit time. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种显影装置，当使用双组分显影剂的涓流系统显影装置倾斜时，可以通过简单的结构防止显影剂的过度排放，并提供图像形成装置。解决方案：显影装置包括用于在搅拌的同时在显影槽中输送显影剂的搅拌构件和显影剂载体。显影装置包括：向显影槽供应供应显影剂的显影剂供应罐; 出口，其布置在显影槽中，显影槽中的过量的显影剂通过该出口排出; 开发者汇集部分，其具有用于临时存储过量显影剂的空间; 以及汇集部分搅拌构件，其将汇集部分中的显影剂从出口输送到排气口。显影槽中的显影剂每单位时间通过显影槽搅拌部件向出口输送的量大于通过汇集部搅拌部件每单位时间向池排出口输送显影剂的量。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2009058552A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2009058552A
公开(公告)日：2009-03-19
申请号：JP2007223435
申请日：2007-08-30
申请人： Konica Minolta Business Technologies Inc , コニカミノルタビジネステクノロジーズ株式会社
发明人： SASAKI TAKUYA , OKADA TAKUYA , IMURA TOMOYUKI
IPC分类号： G03G21/00 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of efficiently discharging deteriorated toner from a developing device to an electrostatic latent image carrier while suppressing lowering of image productivity. SOLUTION: The image forming apparatus P obtains degree of degradation of toner in the developing device 4 when forming an electrostatic latent image for forcibly consuming toner on an electrostatic latent image carrier 1 in a toner forcible consumption mode, and selects the electrostatic latent image for forcibly consuming toner in accordance with the obtained degree of degradation of the toner out of a plurality of predetermined electrostatic latent images for forcibly consuming toner (solid pattern, dot pattern, line pattern and combination of solid pattern and dot pattern or the like) to discharge the deteriorated toner in accordance with the degree of degradation of the toner from both viewpoints of suppression of the lowering of the image productivity and efficient discharge of the deteriorated toner, and then forms the electrostatic latent image for forcibly consuming toner of the selected pattern. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够有效地将劣化的调色剂从显影装置排出到静电潜像载体上同时抑制图像生产率降低的图像形成装置。解决方案：图像形成装置P在形成用于在调色剂强制消耗模式下静电潜像载体1上强制地消耗调色剂的静电潜像时，获得显影装置4中的调色剂的劣化程度，并选择静电潜像根据获得的强制消耗调色剂的多个预定静电潜像（固体图案，点图案，线图案和实心图案和点阵图案的组合等）的调色剂的劣化程度强制地消耗调色剂的图像，从抑制图像生产率降低和劣化调色剂的有效排出的观点出发，根据调色剂的劣化程度排出劣化的调色剂，然后形成用于强制消耗选定图案的调色剂的静电潜像。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2009053582A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2009053582A
公开(公告)日：2009-03-12
申请号：JP2007222211
申请日：2007-08-29
申请人： Konica Minolta Business Technologies Inc , コニカミノルタビジネステクノロジーズ株式会社
发明人： OKADA TAKUYA , IMURA TOMOYUKI , SASAKI TAKUYA
IPC分类号： G03G15/08 , G03G15/00 , G03G15/06
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of efficiently ejecting deterioration toner in each developing device onto a corresponding electrostatic latent image carrier, thereby forming a satisfactory image. SOLUTION: The image forming apparatus P ejects the deterioration toner in each developing device toward the corresponding electrostatic latent image carrier 1 in a toner forcible consumption mode. In the toner forcible consumption mode, an electrostatic latent image of a pattern other than an electrostatic latent image for a solid image is formed as an electrostatic latent image for a toner forcible consumption. A condition for developing an electrostatic latent image by the use of a developing device for toner forcible consumption is made different from a developing condition assigned for regular image formation, so that more toner on each developing roller 41 reaching a developing area is caused to fly to the corresponding electrostatic latent image than the case of regular image formation. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供能够将各显影装置中的劣化调色剂有效地喷射到相应的静电潜像载体上的图像形成装置，从而形成令人满意的图像。解决方案：图像形成装置P以调色剂强制消费模式将各显影装置中的劣化调色剂朝向相应的静电潜像载体1喷射。在调色剂强制消耗模式中，形成除了用于固体图像的静电潜像之外的图案的静电潜像作为强制消耗调色剂的静电潜像。通过使用用于强制消耗调色剂的显影装置使静电潜像显影的条件与用于规则图像形成的显影条件不同，使得到达显影区域的每个显影辊41上的更多调色剂被飞到相应的静电潜像比常规图像形成的情况。版权所有（C）2009，JPO＆INPIT

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