公开(公告)号：US10663901B2

公开(公告)日：2020-05-26

申请号：US16523801

申请日：2019-07-26

申请人： Konica Minolta, Inc.

发明人： Yasuo Shirodai ,  Makoto Fujii ,  Masahiro Onodera

IPC分类号： G03G15/20 ,  G03G15/00

摘要： An image forming apparatus includes: a fixer including fixing rotation body and pressing rotation body with a fixing nip therebetween, and heats and presses a fed sheet through the fixing nip to fix a toner image on the sheet to the sheet; and a hardware processor making a velocity difference between respective surface velocities of the fixing rotation body and the sheet passing through the fixing nip during a high-gloss mode operation to adjust a gloss of the toner image on the sheet. The hardware processor performs a control so that an absolute value of a velocity difference between respective surface velocities of the fixing rotation body and the pressing rotation body in press-contact when the sheet does not pass through the fixing nip is less than one between respective surface velocities of the fixing rotation body and the sheet when the sheet passes through the fixing nip during the high-gloss mode operation.

公开(公告)号：US09223260B2

公开(公告)日：2015-12-29

申请号：US14541773

申请日：2014-11-14

申请人： Konica Minolta, Inc.

发明人： Kazunori Nishinoue ,  Miho Yamano ,  Makoto Fujii ,  Hiroshi Matsumoto ,  Taizou Oonishi ,  Atsushi Nakamura

IPC分类号： G03G15/00 ,  G03G15/20 ,  G03G21/00

CPC分类号： G03G15/2017 ,  G03G15/2064 ,  G03G15/6573 ,  G03G2215/00649 ,  G03G2215/2032

摘要： An image forming apparatus includes a fixing side member disposed at a position on a fixing surface side of a sheet on which a toner image is formed; a back side supporting member that forms a fixing nip for conveying the sheet in a tightly sandwiching manner when the back side supporting member is in pressure contact with the fixing side member; and a voltage applying section that applies to both sides of the sheet passed through the fixing nip voltages opposite in polarity to surface potentials of the both sides.

摘要翻译： 图像形成装置包括：固定侧构件，其设置在其上形成有调色剂图像的片材的固定表面侧上的位置; 后侧支撑构件，当后侧支撑构件与固定侧构件压力接触时，形成用于以紧密夹持的方式输送片材的定影夹持部; 以及电压施加部，其施加到通过所述定影夹持器的所述片材的两侧，所述电压极性与所述两侧的表面电位相反。

公开(公告)号：US11345559B2

公开(公告)日：2022-05-31

申请号：US16592660

申请日：2019-10-03

申请人： Konica Minolta, Inc.

发明人： Makoto Fujii

IPC分类号： B65H7/14 ,  B65H9/00 ,  B65H5/06

摘要： There is provided a sheet conveyance device that includes a first conveyance roller and a second conveyance roller that are arranged at a position other than a center in a direction of sheet width in a sheet conveyance path, a roller selector that selects the first conveyance roller or the second conveyance roller as a roller to convey a sheet, and a controller that causes the roller selector to select the first conveyance roller or the second conveyance roller. The first conveyance roller is made of a material that causes a speed of the sheet conveyed by the first conveyance roller in contact with the first conveyance roller to be higher than a rotation speed of the first conveyance roller. The second conveyance roller is made of a material that causes a speed of the sheet conveyed by the second conveyance roller in contact with the second conveyance roller to be lower than a rotation speed of the second conveyance roller.

公开(公告)号：US09367014B2

公开(公告)日：2016-06-14

申请号：US14499767

申请日：2014-09-29

申请人： Konica Minolta Inc.

发明人： Miho Yamano ,  Hiroshi Matsumoto ,  Kazunori Nishinoue ,  Taizou Oonishi ,  Atsushi Nakamura ,  Makoto Fujii

IPC分类号： G03G15/00

CPC分类号： G03G15/6552 ,  G03G2215/007

摘要： An image forming apparatus has an image forming unit that forms an image on a sheet, a fixing unit that performs fixing of the sheet on which the image is formed, a first conveyance route that has a reverse conveyance route and a second conveyance route that does not pass the reverse conveyance route, and a control unit that performs first control for conveying a previously printed sheet which is printed previously via the first conveyance route and second control for conveying a subsequently printed sheet which is printed subsequently via the second conveyance route, and exerts control to feed the previously printed sheet and the subsequently printed sheet in an overlapped manner after the first conveyance route and the second conveyance route merge together.

摘要翻译： 图像形成装置具有在片材上形成图像的图像形成单元，进行图像形成的片材的固定的定影单元，具有反转输送路径的第一输送路径和第二输送路径， 不通过反向输送路径的控制单元，以及执行用于经由第一输送路径输送先前印刷的预先印刷的纸张的第一控制的控制单元和用于输送经由第二输送路线随后印刷的随后的打印片材的第二控制，以及 执行控制以在第一输送路径和第二输送路线合并之后以重叠的方式供给先前打印的纸张和随后的打印纸张。

公开(公告)号：US09274475B2

公开(公告)日：2016-03-01

申请号：US14508289

申请日：2014-10-07

申请人： Konica Minolta, Inc.

发明人： Hiroshi Matsumoto ,  Kazunori Nishinoue ,  Taizou Oonishi ,  Makoto Fujii ,  Miho Yamano ,  Atsushi Nakamura

IPC分类号： G03G15/00 ,  B65H15/00 ,  G03G15/23 ,  B65H85/00

CPC分类号： G03G15/50 ,  B65H15/00 ,  B65H85/00 ,  B65H2301/3123 ,  B65H2301/33214 ,  B65H2301/33312 ,  B65H2301/5132 ,  B65H2301/5133 ,  B65H2511/415 ,  B65H2515/716 ,  B65H2601/273 ,  G03G15/234 ,  G03G15/6573 ,  G03G2215/00438 ,  G03G2215/00654 ,  B65H2220/01 ,  B65H2220/02 ,  B65H2220/09

摘要： an image forming apparatus including; a non-inversion conveyance unit that conveys a sheet to a downstream without inverting through the image forming unit; an inversion conveyance unit that inverts the sheet with printing on one side and that conveys the sheet to an upstream; a first sheet inversion unit that is arranged on the inversion conveyance unit and inverts the front and back of the sheet conveyed by the inversion conveyance unit; a control unit that controls the image forming unit and the conveyance unit, wherein the control unit includes a single-sided print mode and a double-sided print mode, and at a breakpoint of jobs, the control unit discharges the sheet so as to provide charge polarity that does not electrostatically attract a sheet discharged just before the breakpoint and a sheet discharged just after the breakpoint at least in the double-sided print mode.

摘要翻译： 一种图像形成装置，包括： 非反转输送单元，其通过图像形成单元将纸张传送到下游而不反转; 反转输送单元，其在一侧打印所述纸张，并将所述纸张输送到上游; 第一纸张反转单元，布置在反转输送单元上，并且反转由反转输送单元输送的纸张的前后; 控制单元，其控制图像形成单元和输送单元，其中所述控制单元包括单面打印模式和双面打印模式，并且在作业断点处，所述控制单元排出所述纸张，以便提供 至少在双面打印模式下，不静电吸引刚好在断点之前排出的片材的电荷极性和刚好在断点之后排出的片材。

公开(公告)号：US09116474B2

公开(公告)日：2015-08-25

申请号：US14087851

申请日：2013-11-22

申请人： Konica Minolta, Inc.

发明人： Kazunori Nishinoue ,  Hiroshi Matsumoto ,  Makoto Fujii ,  Miho Yamano ,  Taizou Oonishi

IPC分类号： G03G15/20 ,  G03G21/16

CPC分类号： G03G15/2017 ,  G03G21/1685 ,  G03G2215/20

摘要： An image forming apparatus includes: a fixing unit that heats and presses a recording sheet having a toner image formed thereon, by means of a fixing nip portion to thereby fix the toner image to the recording sheet; a translation section that translates the fixing unit in a direction that is orthogonal to a conveying direction of the recording sheet; and a controlling section that controls the translation section so that the fixing unit is translated by a translation amount that is one-half of a value obtained by subtracting an image width of the toner image from a sheet width of the recording sheet.

摘要翻译： 图像形成装置包括：定影单元，其通过定影夹持部分加热并按压其上形成有调色剂图像的记录片材，从而将调色剂图像定影到记录片材; 平移部，其使定影单元沿与记录纸的输送方向正交的方向平移; 以及控制部分，其控制所述平移部分，使得所述定影单元的平移量是通过从所述记录片材的纸张宽度减去所述调色剂图像的图像宽度而获得的值的一半的平移量。

公开(公告)号：US09037027B2

公开(公告)日：2015-05-19

申请号：US14089338

申请日：2013-11-25

申请人： Konica Minolta, Inc.

发明人： Taizou Oonishi ,  Makoto Fujii ,  Miho Yamano ,  Kazunori Nishinoue ,  Hiroshi Matsumoto

IPC分类号： G03G15/20

CPC分类号： G03G15/2017 ,  G03G15/2042

摘要： An image forming apparatus includes: a fixing member; a moving section that moves the fixing member in a sheet width direction; a temperature detection section disposed at a position corresponding to an end portion of the fixing member, the temperature detection section moving together with the fixing member to detect a temperature of the end portion; and a control section that performs a first movement control and a second movement control on the basis of a result of a detection by the temperature detection section, the first movement control being intended to move the fixing member in the sheet width direction in a reciprocating manner with a predetermined cycle, the second movement control being intended to move the fixing member in the sheet width direction so that the temperature of the fixing member falls within a predetermined temperature range.

摘要翻译： 图像形成装置包括：固定部件; 移动部，其使所述固定部件沿片材宽度方向移动; 温度检测部，其设置在与所述固定部件的端部对应的位置，所述温度检测部与所述固定部件一起移动，以检测所述端部的温度; 以及控制部，其基于所述温度检测部的检测结果进行第一移动控制和第二移动控制，所述第一移动控制旨在使所述固定构件沿所述片材宽度方向以往复方式移动 以预定的周期，第二移动控制旨在使固定构件在片材宽度方向上移动，使得固定构件的温度落在预定的温度范围内。

公开(公告)号：US09568866B2

公开(公告)日：2017-02-14

申请号：US14925075

申请日：2015-10-28

申请人： Konica Minolta, Inc.

发明人： Toru Yamaguchi ,  Makoto Fujii ,  Mikihiko Takada

IPC分类号： G03G15/20

CPC分类号： G03G15/2032 ,  G03G2215/2045

摘要： To provide an image forming apparatus and an image forming method which can rapidly decrease (cool) the temperature of a fixing section. The image forming apparatus of the invention includes a fixing section fixing a toner image on a sheet, and a controller performing switching control of press-contact state/separated state of the fixing section, and conveyance control of the sheet. The controller, after completion of printing, rapidly cools the fixing section while keeping it in the press-contact state by conveying the sheet at a first conveying speed. The controller naturally cools the fixing section by bringing it into the separated state at a predetermined timing to convey the sheet at a second conveying speed slower than the first conveying speed, and stops conveying it when the temperature of the fixing section becomes not higher than a predetermined temperature.

摘要翻译： 提供能够快速降低（冷却）固定部的温度的图像形成装置和图像形成方法。 本发明的图像形成装置包括固定片材上的调色剂图像的固定部分和执行定影部分的压接状态/分离状态的切换控制的控制器以及片材的传送控制。 控制器在完成打印之后，通过以第一传送速度传送纸张而将其保持在压接状态下，迅速地冷却固定部。 控制器通过在预定的时间使其进入分离状态自然地冷却固定部，以比第一输送速度慢的第二输送速度输送片材，并且当固定部的温度变得不高于 预定温度。