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1. 发明授权

US09091974B2 Image forming apparatus and image forming method 有权
标题翻译：图像形成装置及图像形成方法
公开(公告)号：US09091974B2
公开(公告)日：2015-07-28
申请号：US13569512
申请日：2012-08-08
申请人： Mahito Yoshioka , Satoru Izawa , Masahide Hirai , Munehito Kurata
发明人： Mahito Yoshioka , Satoru Izawa , Masahide Hirai , Munehito Kurata
IPC分类号： G03G15/20 , G03G15/00
CPC分类号： G03G15/2039 , G03G15/5041 , G03G15/5058 , G03G15/556 , G03G2215/00037
摘要： The image forming apparatus includes an image processing section that converts image data into pixel data, an image forming section that forms a toner image based on the pixel data, and a fixing section that fixes the toner image to the recording material by heating the recording material with the toner image formed thereon while conveying the recording material through a nip portion. The image processing section divides the pixel data corresponding to one recording material into a plurality of areas each formed of a predetermined number of pixels and acquires density information on some of the pixels within each of the areas as representative values. The fixing section carries out a process of fixing the toner image for which the density information has been acquired, under a fixing condition according to a maximum value of the representative values.
摘要翻译：图像形成装置包括将图像数据转换为像素数据的图像处理部分，基于像素数据形成调色剂图像的图像形成部分和通过加热记录材料将调色剂图像定影到记录材料的固定部分其上形成有调色剂图像，同时通过辊隙部分输送记录材料。图像处理部将对应于一个记录材料的像素数据分割成由预定数量的像素形成的多个区域，并且获取每个区域内的一些像素的密度信息作为代表值。固定部在根据代表值的最大值的固定条件下执行固定已经获取了浓度信息的调色剂图像的处理。

2. 发明授权

US08606157B2 Image forming apparatus operable in a mode for cleaning a fixing portion 有权
标题翻译：图像形成装置可以以清洁固定部分的方式操作
公开(公告)号：US08606157B2
公开(公告)日：2013-12-10
申请号：US13079305
申请日：2011-04-04
申请人： Mahito Yoshioka , Daizo Fukuzawa , Noriaki Sato , Tooru Imaizumi , Munehito Kurata , Kuniaki Kasuga
发明人： Mahito Yoshioka , Daizo Fukuzawa , Noriaki Sato , Tooru Imaizumi , Munehito Kurata , Kuniaki Kasuga
IPC分类号： G03G15/20
CPC分类号： G03G15/6573 , G03G15/2025 , G03G2215/00413 , G03G2215/00531
摘要： The image forming apparatus includes an image forming portion forming a toner image on a recording material, and a fixing portion heating and fixing the toner image formed on the recording material to the recording material, wherein the apparatus has a cleaning mode in which the fixing portion is cleaned, and when the cleaning mode is set, the image forming portion forms a predetermined toner image on the recording material, and the fixing portion then heats and fixes the predetermined toner image to the recording material to form a cleaning sheet which is heated and conveyed to clean the fixing portion. By the virtue of the present invention, it achieves high cleaning performance in which the fixing portion is cleaned by the cleaning sheet.
摘要翻译：图像形成装置包括在记录材料上形成调色剂图像的图像形成部分和将形成在记录材料上的调色剂图像加热和定影到记录材料的定影部分，其中该装置具有清洁模式，其中固定部分并且当清洁模式被设置时，图像形成部分在记录材料上形成预定的调色剂图像，然后固定部分将预定的调色剂图像加热并固定到记录材料上以形成被加热的清洁片材，被输送以清洁固定部分。通过本发明，通过清洁片清洁固定部分，实现了高清洁性能。

3. 发明申请

US20120308253A1 FIXING APPARATUS 有权
标题翻译：固定装置
公开(公告)号：US20120308253A1
公开(公告)日：2012-12-06
申请号：US13484850
申请日：2012-05-31
申请人： Munehito Kurata , Daizo Fukuzawa , Noriaki Sato , Kuniaki Kasuga , Tomonori Sato , Mahito Yoshioka
发明人： Munehito Kurata , Daizo Fukuzawa , Noriaki Sato , Kuniaki Kasuga , Tomonori Sato , Mahito Yoshioka
IPC分类号： G03G15/20
CPC分类号： G03G15/2042
摘要： A fixing apparatus includes: two rotatable members, for forming a nip, including a region where an outer diameter is increased from a longitudinal central portion toward a longitudinal end portion; a heater; and a controller for controlling a heat generation distribution of the heater. The controller is capable of controlling the heater so that the heat generation distribution of the heater is such that a heat generation amount at the longitudinal end portion is larger than that at the longitudinal central portion in a period from start of the heater until the recording material reaches the nip. A ratio of the heat generation amount at the longitudinal end portion to that at the longitudinal central portion is larger when a cumulative amount of use of the fixing apparatus is larger than a predetermined amount than when the cumulative amount of use is smaller than the predetermined amount.
摘要翻译：定影装置包括：用于形成辊隙的两个可旋转构件，包括外径从纵向中心部分朝向纵向端部部分增加的区域; 加热器以及用于控制加热器的发热分布的控制器。控制器能够控制加热器，使得加热器的发热分布使得在从加热器开始到记录材料的时间段期间，纵向端部处的发热量大于纵向中心部分处的发热量到达nip 当累积使用量小于预定量时，当定影装置的累积使用量大于预定量时，纵向端部处的发热量与纵向中心部分处的发热量的比率较大。

4. 发明授权

US08326169B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08326169B2
公开(公告)日：2012-12-04
申请号：US13215283
申请日：2011-08-23
申请人： Munehito Kurata , Daizo Fukuzawa , Mahito Yoshioka , Noriaki Sato , Tooru Imaizumi , Kuniaki Kasuga
发明人： Munehito Kurata , Daizo Fukuzawa , Mahito Yoshioka , Noriaki Sato , Tooru Imaizumi , Kuniaki Kasuga
IPC分类号： G03G15/20
CPC分类号： G03G15/2042 , G03G2215/00413 , G03G2215/00772
摘要： The image forming apparatus, in the case where image forming is performed on a recording medium whose size covers a position of a second temperature detection element perpendicularly disposed to the recording medium conveyance direction, when the detected temperature rises to a predetermined temperature during execution of the first power supply control, a first power supply control is switched to a second power supply control. In the case where image forming is performed on a recording medium whose size does not cover a position of the second temperature detection element, when the detected temperature rises to a predetermined temperature during execution of the first power supply control, a conveyance control portion executes a control for extending the conveyance interval of the recording medium. Thus, an unduly large temperature rise in the non-sheet passing portion is prevented, and a good quality image can be provided without glossy unevenness in one sheet.
摘要翻译：在检测到的温度在执行期间检测到的温度上升到预定温度的情况下，在其尺寸覆盖垂直于记录介质输送方向的第二温度检测元件的位置的记录介质上进行图像形成的情况下，第一电源控制，第一电源控制切换到第二电源控制。在尺寸不覆盖第二温度检测元件的位置的记录介质上进行图像形成的情况下，当在第一电源控制执行期间检测到的温度上升到预定温度时，输送控制部分执行用于延长记录介质的输送间隔的控制。因此，防止非片材通过部分的过大的温度上升，并且可以在一张片材中没有光泽不均匀的情况下提供高质量的图像。

5. 发明申请

US20110305475A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20110305475A1
公开(公告)日：2011-12-15
申请号：US13215283
申请日：2011-08-23
申请人： Munehito Kurata , Daizo Fukuzawa , Mahito Yoshioka , Noriaki Sato , Tooru Imaizumi , Kuniaki Kasuga
发明人： Munehito Kurata , Daizo Fukuzawa , Mahito Yoshioka , Noriaki Sato , Tooru Imaizumi , Kuniaki Kasuga
IPC分类号： G03G15/20
CPC分类号： G03G15/2042 , G03G2215/00413 , G03G2215/00772
摘要： The image forming apparatus, in the case where image forming is performed on a recording medium whose size covers a position of a second temperature detection element perpendicularly disposed to the recording medium conveyance direction, when the detected temperature rises to a predetermined temperature during execution of the first power supply control, a first power supply control is switched to a second power supply control. In the case where image forming is performed on a recording medium whose size does not cover a position of the second temperature detection element, when the detected temperature rises to a predetermined temperature during execution of the first power supply control, a conveyance control portion executes a control for extending the conveyance interval of the recording medium. Thus, an unduly large temperature rise in the non-sheet passing portion is prevented, and a good quality image can be provided without glossy unevenness in one sheet.
摘要翻译：在检测到的温度在执行期间检测到的温度上升到预定温度的情况下，在其尺寸覆盖垂直于记录介质输送方向的第二温度检测元件的位置的记录介质上进行图像形成的情况下，第一电源控制，第一电源控制切换到第二电源控制。在尺寸不覆盖第二温度检测元件的位置的记录介质上进行图像形成的情况下，当在第一电源控制执行期间检测到的温度上升到预定温度时，输送控制部分执行用于延长记录介质的输送间隔的控制。因此，防止非片材通过部分的过大的温度上升，并且可以在一张片材中没有光泽不均匀的情况下提供高质量的图像。

6. 发明申请

US20090257793A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20090257793A1
公开(公告)日：2009-10-15
申请号：US12418196
申请日：2009-04-03
申请人： Mahito Yoshioka , Daizo Fukuzawa , Noriaki Sato , Tooru Imaizumi , Munehito Kurata , Kuniaki Kasuga
发明人： Mahito Yoshioka , Daizo Fukuzawa , Noriaki Sato , Tooru Imaizumi , Munehito Kurata , Kuniaki Kasuga
IPC分类号： G03G15/20 , G03G13/20
CPC分类号： G03G15/6573 , G03G15/2025 , G03G2215/00413 , G03G2215/00531
摘要： The image forming apparatus includes an image forming portion forming a toner image on a recording material, and a fixing portion heating and fixing the toner image formed on the recording material to the recording material, wherein the apparatus has a cleaning mode in which the fixing portion is cleaned, and when the cleaning mode is set, the image forming portion forms a predetermined toner image on the recording material, and the fixing portion then heats and fixes the predetermined toner image to the recording material to form a cleaning sheet which is heated and conveyed to clean the fixing portion. By the virtue of the present invention, it achieves high cleaning performance in which the fixing portion is cleaned by the cleaning sheet.
摘要翻译：图像形成装置包括在记录材料上形成调色剂图像的图像形成部分和将形成在记录材料上的调色剂图像加热和定影到记录材料的定影部分，其中该装置具有清洁模式，其中固定部分并且当清洁模式被设置时，图像形成部分在记录材料上形成预定的调色剂图像，然后固定部分将预定的调色剂图像加热并固定到记录材料上以形成被加热的清洁片材，被输送以清洁固定部分。通过本发明，通过清洁片清洁固定部分，实现了高清洁性能。

7. 发明授权

US08873985B2 Image forming apparatus controlling power supplied to fixing unit 有权
标题翻译：图像形成装置控制提供给定影单元的电力
公开(公告)号：US08873985B2
公开(公告)日：2014-10-28
申请号：US13310973
申请日：2011-12-05
申请人： Daizo Fukuzawa , Munehito Kurata , Noriaki Sato , Kuniaki Kasuga , Mahito Yoshioka
发明人： Daizo Fukuzawa , Munehito Kurata , Noriaki Sato , Kuniaki Kasuga , Mahito Yoshioka
IPC分类号： G03G15/20
CPC分类号： G03G15/2078 , G03G15/2003 , G03G15/2039 , G03G15/2042 , G03G15/205 , G03G15/657 , G03G2215/2016 , G03G2215/2032
摘要： Adjusting the start timing for conveying a printing material from a printing material conveying unit based on a power supply update period for power supplied to a heater allows proper power correction timing to be attained for compensating for a drop in temperature of the endless belt following the printing material entering a fixing nip portion.
摘要翻译：基于供给到加热器的功率的电源更新周期来调整从打印材料传送单元输送打印材料的开始时间，可以获得适当的功率校正时间，以补偿打印后的环形带的温度下降材料进入定影辊隙部分。

8. 发明授权

US08331819B2 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US08331819B2
公开(公告)日：2012-12-11
申请号：US12794404
申请日：2010-06-04
申请人： Daizo Fukuzawa , Tooru Imaizumi , Mahito Yoshioka , Noriaki Sato , Munehito Kurata , Kuniaki Kasuga , Yoshimichi Ikeda , Hiromitsu Kumada , Satoru Koyama , Toshifumi Kitamura , Atsunobu Mori
发明人： Daizo Fukuzawa , Tooru Imaizumi , Mahito Yoshioka , Noriaki Sato , Munehito Kurata , Kuniaki Kasuga , Yoshimichi Ikeda , Hiromitsu Kumada , Satoru Koyama , Toshifumi Kitamura , Atsunobu Mori
IPC分类号： G03G15/20
CPC分类号： G03G15/205 , G03G15/2039 , G03G2215/2035
摘要： The image forming apparatus includes a fixing portion, a temperature detection element, and a power control portion. The power control portion is capable of setting a first power supply control mode for supplying power according to the detected temperature for each one control cycle, a second power supply control mode for supplying power according to the detected temperature for each one control cycle and a third power supply control mode for supplying predetermined power, and switches, immediately before a leading edge of the recording material enters the fixing portion, a state of supplying the power in the first power supply control mode to a state of supplying the power in the second power supply control mode, and then switches the state of supplying the power in the second power supply control mode to a state of supplying the power in the third power supply control mode.
摘要翻译：图像形成装置包括固定部，温度检测元件和功率控制部。功率控制部能够根据每个控制周期的检测温度设定用于供电的第一电源控制模式，用于根据每个控制周期的检测温度供电的第二电源控制模式和第三电源控制模式用于提供预定功率的电源控制模式，并且在紧接在记录材料的前沿进入固定部分之前切换将第一电源控制模式中的电力提供给提供第二电力的状态的状态电源控制模式，然后将在第二电源控制模式中的电力供应状态切换到在第三电源控制模式下供电的状态。

9. 发明授权

US08027607B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08027607B2
公开(公告)日：2011-09-27
申请号：US12366023
申请日：2009-02-05
申请人： Munehito Kurata , Daizo Fukuzawa , Mahito Yoshioka , Noriaki Sato , Tooru Imaizumi , Kuniaki Kasuga
发明人： Munehito Kurata , Daizo Fukuzawa , Mahito Yoshioka , Noriaki Sato , Tooru Imaizumi , Kuniaki Kasuga
IPC分类号： G03G15/20
CPC分类号： G03G15/2042 , G03G2215/00413 , G03G2215/00772
摘要： The image forming apparatus, in the case where image forming is performed on a recording medium whose size covers a position of a second temperature detection element perpendicularly disposed to the recording medium conveyance direction, when the detected temperature rises to a predetermined temperature during execution of the first power supply control, a first power supply control is switched to a second power supply control. In the case where image forming is performed on a recording medium whose size does not cover a position of the second temperature detection element, when the detected temperature rises to a predetermined temperature during execution of the first power supply control, a conveyance control portion executes a control for extending the conveyance interval of the recording medium. Thus, an unduly large temperature rise in the non-sheet passing portion is prevented, and a good quality image can be provided without glossy unevenness in one sheet.
摘要翻译：在检测到的温度在执行期间检测到的温度上升到预定温度的情况下，在其尺寸覆盖垂直于记录介质输送方向的第二温度检测元件的位置的记录介质上进行图像形成的情况下，第一电源控制，第一电源控制切换到第二电源控制。在尺寸不覆盖第二温度检测元件的位置的记录介质上进行图像形成的情况下，当在第一电源控制执行期间检测到的温度上升到预定温度时，输送控制部分执行用于延长记录介质的输送间隔的控制。因此，防止非片材通过部分的过大的温度上升，并且可以在一张片材中没有光泽不均匀的情况下提供高质量的图像。

10. 发明申请

US20110150548A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20110150548A1
公开(公告)日：2011-06-23
申请号：US12958771
申请日：2010-12-02
申请人： Kuniaki Kasuga , Daizo Fukuzawa , Noriaki Sato , Mahito Yoshioka , Munehito Kurata , Tooru Imaizumi
发明人： Kuniaki Kasuga , Daizo Fukuzawa , Noriaki Sato , Mahito Yoshioka , Munehito Kurata , Tooru Imaizumi
IPC分类号： G03G15/00 , B65H7/00
CPC分类号： G03G15/6573 , B65H5/062 , B65H7/02 , B65H2511/112 , B65H2553/612 , B65H2553/83 , B65H2801/06 , B65H2220/01
摘要： The present invention provides an image forming apparatus including an upstream conveying portion, a downstream conveying portion, and a loop detector, wherein the image forming apparatus further includes a driving portion which moves the contact portion to a projecting position where the sheet conveying path is in contact with a conveyed sheet and to a retracted position where the sheet conveying path is not in contact with the conveyed sheet, and a controlling portion which controls the driving portion such that the contact portion is moved from the projecting position to the retracted position before a tip end of a sheet which enters the sheet conveying path from the upstream conveying portion reaches the contact portion.
摘要翻译：本发明提供了一种图像形成装置，包括上游输送部分，下游输送部分和环路检测器，其中图像形成装置还包括驱动部分，其将接触部分移动到片材输送路径处于其中的突出位置与传送的纸张接触并且到纸张传送路径不与被传送的纸张接触的缩回位置;以及控制部分，其控制驱动部分，使得接触部分在前一个位置之前从突出位置移动到缩回位置从上游输送部进入片材输送路径的片材的前端到达接触部。

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