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51. 发明专利

JP2006071975A Fixing device 审中-公开
标题翻译：固定装置
公开(公告)号：JP2006071975A
公开(公告)日：2006-03-16
申请号：JP2004255336
申请日：2004-09-02
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： KATSUKI KIYOTERU , IKUMA TAKESHI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To shorten warm-up time and to prevent an offset phenomenon.
SOLUTION: The fixing device is equipped with: a heating roller 1; a pressure roller 2 pressed on the heating roller; a belt stretching and laying member 4 arranged on an upstream side in a paper conveying direction with respect to the pressure roller and disposed on the pressure roller through a tension spring; and the belt 3 wound round the outer peripheries of the pressure roller and the belt stretching and laying member and moving while forming a fixing nip between the heating roll and the belt 3 itself. A nip forming area 4a is formed on the belt stretching and laying member, and a belt non-contact part 4b is formed on a belt sliding surface other than the nip forming area.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：缩短预热时间并防止偏移现象。
解决方案：定影装置配备有：加热辊1; 压在加热辊上的压力辊2; 布置在相对于加压辊的纸张传送方向的上游侧并且通过拉伸弹簧设置在加压辊上的带拉伸和铺设件4; 皮带3缠绕在加压辊和皮带拉伸和敷设部件的外周边上，同时在加热辊和皮带3本身之间形成定影辊隙。在带拉伸放置部件上形成有辊隙形成区域4a，并且在辊隙形成区域以外的带滑动面上形成带非接触部分4b。版权所有（C）2006，JPO＆NCIPI

52. 发明专利

JP2006071974A Fixing belt and fixing device using fixing belt 审中-公开
标题翻译：固定皮带和固定装置使用固定皮带
公开(公告)号：JP2006071974A
公开(公告)日：2006-03-16
申请号：JP2004255335
申请日：2004-09-02
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： KATSUKI KIYOTERU , IKUMA TAKESHI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To restrain tensile stress and compressive stress from being repeatedly applied to the inner surface and the outer surface of a belt while shortening warm-up time.
SOLUTION: The fixing device is equipped with: a heating roller 1; a pressure roller 2 pressed on the heating roller; a belt stretching and laying member 4 arranged on an upstream side in a paper conveying direction with respect to the pressure roller and disposed on the pressure roller through a tension spring; and the belt 3 wound round the outer peripheries of the pressure roller and the belt stretching and laying member and moving while forming a fixing nip between the heating roll and the belt 3 itself. The belt is constituted by engageing a plurality of belts each other and also sticking the respective belts at partial adhesion parts.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：在缩短预热时间的同时，抑制拉伸应力和压缩应力重复施加到带的内表面和外表面。
解决方案：定影装置配备有：加热辊1; 压在加热辊上的压力辊2; 布置在相对于加压辊的纸张传送方向的上游侧并且通过拉伸弹簧设置在加压辊上的带拉伸和铺设件4; 皮带3缠绕在加压辊和皮带拉伸和敷设部件的外周边上，同时在加热辊和皮带3本身之间形成定影辊隙。带是通过使多个带彼此接合而构成的，并且也将各个带粘附在部分粘合部分。版权所有（C）2006，JPO＆NCIPI

53. 发明专利

JP2005258108A Fixing device and image forming apparatus 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2005258108A
公开(公告)日：2005-09-22
申请号：JP2004070081
申请日：2004-03-12
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： KATSUKI KIYOTERU , IKUMA TAKESHI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To obtain stable printing by preventing a difference in an amount of heat transfer between the axial middle of a fixing nip section and its ends, thereby making the gloss and fixability uniform from the axial middle to the ends. SOLUTION: The fixing device includes: a heat roller 1; a pressure roller 2 which is pressed against the heat roller 1; a heat resistant belt 3 which is wound around the circumference of the pressure roller 2 and moved while held between the heat roller 1 and the pressure roller 2; and a belt stretch member 4 which stretches the heat resistant belt 3. The fixing device fixes an unfixed toner image formed on a sheet material 5. In the fixing device, the belt stretch member 4 is formed such that the heat resistant belt 3 is wound around the heat roller 1 while the nip is formed against the pressure roller 2 and such that the shape of the nip formed against the heat roller 1 projects larger in the middle than in the ends. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了通过防止定影夹持部分的轴向中间与其端部之间的热传递量的差异来获得稳定的印刷，从而使得光泽和定影性从轴向中间到端部均匀。解决方案：定影装置包括：加热辊1; 压靠在加热辊1上的压力辊2; 耐热带3，其缠绕在加压辊2的圆周上并在保持在加热辊1和加压辊2之间移动; 以及延伸耐热带3的带拉伸构件4.定影装置固定形成在片材5上的未定影调色剂图像。在定影装置中，形成带状拉伸构件4，使得耐热带3被卷绕围绕加热辊1，同时辊隙形成在压力辊2上，并且使得形成在加热辊1上的辊隙的形状在中间比在末端突出得更大。版权所有（C）2005，JPO＆NCIPI

54. 发明专利

JP2005156671A Fixing device and image forming apparatus 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2005156671A
公开(公告)日：2005-06-16
申请号：JP2003391834
申请日：2003-11-21
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： KATSUKI KIYOTERU , IKUMA TAKESHI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To prevent temperature increases at the ends of a thermal fixing roll, thereby preventing degradation in image quality caused by the temperature increases of the ends, and a decrease in productivity.
SOLUTION: A fixing device includes the thermal fixing roll 1, a pressure roll 2 pressed against the thermal fixing roll 1, a heat-resistant belt 3 wrapped along the outer circumference of the pressure roll 2 and moved while held between the thermal fixing roll 1 and the pressure roll 2, and a belt stretch member 4 stretching the heat-resistant belt 3, and fixes an unfixed toner image 5a formed on a sheet material 5. The image forming apparatus is equipped with the fixing device. The belt stretch member 4 stretches the heat resistant belt 3 by applying tension to the heat-resistant belt 3 between the pressure roll 2 and it, thereby wrapping the heat-resistant belt 3 along the thermal fixing roll 1 and forming a fixing nip. Gap rollers which make an adjustment so that a gap between the belt stretch member 4 and the thermal fixing roll 1 which hold the heat-resistant belt 3 is greater the thickness of the heat-resistant belt 3 are disposed at both edges of the belt stretch member 4 and outside of a paper passage area.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了防止热定影辊的端部处的温度升高，从而防止由端部的温度升高引起的图像质量的劣化，并且生产率降低。解决方案：定影装置包括热定影辊1，压靠在热定影辊1上的压力辊2，沿着加压辊2的外圆周包裹的耐热带3，并保持在热定影辊1和压力辊2以及拉伸耐热带3的带拉伸件4，并且固定形成在片材5上的未定影调色剂图像5a。图像形成设备配备有定影装置。带拉伸部件4通过向加压辊2之间的耐热带3施加张力而拉伸耐热带3，从而沿着热定影辊1包裹耐热带3并形成定影辊隙。进行调整的间隙辊，使得带状伸缩构件4与保持耐热带3的热定影辊1之间的间隙比耐热带3的厚度大的那样设置在带拉伸的两个边缘会员4和纸通道区域外。版权所有（C）2005，JPO＆NCIPI

55. 发明专利

JP2004279493A Fixing device and image forming apparatus 审中-公开
公开(公告)号：JP2004279493A
公开(公告)日：2004-10-07
申请号：JP2003067446
申请日：2003-03-13
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： YOSHIOKA KENJIRO , KATSUKI KIYOTERU
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To prevent the deterioration of an image by preventing the occurrence of gloss unevenness or the like due to the increase in the control variation of fixing temperature caused by turning on and off a second heater.
SOLUTION: In a fixing device by which unfixed toner 131 is fixed by bringing a pressure roller 120 into press-contact with a heating roller 110 incorporating a center area heating heater 100 to heat a center area and a both-end area heating heater 100 to heat both end areas at the outside of the center area, the maximum variation in the surface temperature of the heating roller is reduced at a center part by arranging a temperature detecting sensor to detect the temperature of the heating roller 110 at a part where the heating part of the center area heating heater and the holding part of the both-end area heating heater are not overlapped, and excessive temperature rise on the surface of the heating roller is appropriately detected at both end parts by arranging at a part where the heating part of the both-end area heating heater and the holding part of the center area heating heater are overlapped, and the occurrence of the gloss unevenness or the like is prevented, so that the deterioration of the image is prevented.
COPYRIGHT: (C)2005,JPO&NCIPI

56. 发明专利

JP2004268387A Process for manufacturing writing head 审中-公开
公开(公告)号：JP2004268387A
公开(公告)日：2004-09-30
申请号：JP2003061481
申请日：2003-03-07
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： KAMOSHITA SHINICHI , KITAZAWA ATSUNORI , KATSUKI KIYOTERU
IPC分类号： B41J2/395 , G03G15/05
摘要： PROBLEM TO BE SOLVED: To provide a writing head producing a high resolution image and capable of forming a stabilized electrostatic latent image on an image carrier by eliminating the problem of current crosstalk. SOLUTION: In a writing head 3 forming an electrostatic latent image on an image carrier by a writing electrode 3b formed on a film-like substrate 3a, the film-like substrate consists of a first substrate 3a1 and a second substrate 3a2. After a protruding electrode section 3b and a wiring section 3c are formed on the first substrate, a driver section D is mounted on the wiring section at a predetermined position. On the other hand, the second substrate mounting a capacitor section C is pasted to the first substrate. Subsequently, an insulating layer 3e is applied to the surface between the protruding writing electrode section and the driver section and the protruding writing electrode section is exposed by polishing. COPYRIGHT: (C)2004,JPO&NCIPI

57. 发明专利

JP2004246082A Fixing device and image forming apparatus 审中-公开
公开(公告)号：JP2004246082A
公开(公告)日：2004-09-02
申请号：JP2003035907
申请日：2003-02-14
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： YOSHIOKA KENJIRO , KATSUKI KIYOTERU , ARIGA TOMOE
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To avoid image deterioration by preventing nonuniform gloss of an image due to the peak of heat distribution and further preventing high-temperature offset.
SOLUTION: A fixing device fixes an unfixed toner 131 by bringing a heating roller 110 into firm contact with a pressing roller 120. The heating roller 110 incorporates a heater 100 for heating a middle area and another heater 100 for heating both ends located outside the middle area. The image forming apparatus has the fixing device. The heat distributions of both ends of the heater 100 for heating the middle area has their respective peaks outside the image area of the heating roller 110. Heat escaping from both ends of the heat roller is thus compensated for to make the temperature distribution of the image area uniform, thereby preventing image deterioration.
COPYRIGHT: (C)2004,JPO&NCIPI

58. 发明专利

JP2004155169A Writing head and image forming apparatus comprising it 审中-公开
公开(公告)号：JP2004155169A
公开(公告)日：2004-06-03
申请号：JP2002325522
申请日：2002-11-08
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： KATSUKI KIYOTERU , KAMOSHITA SHINICHI
IPC分类号： B41J2/395 , G03G15/05
摘要： PROBLEM TO BE SOLVED: To provide a writing head in which stress concentration and bending are eliminated and writing electrodes in each row abut against a latent image carrier uniformly and stably, and to provide an image forming apparatus comprising it.
SOLUTION: In the writing head 3 and the image forming apparatus comprising it, a plurality of rows of writing electrode 3b are formed on a flexible supporting basic material 3a in the sub-scanning direction in order to form an electrostatic latent image on a latent image carrier 2 by applying a writing voltage from a drive control section 11, and a wiring pattern 3c connecting the drive control section 11 with the writing electrodes 3b is formed while being extended to th position of a different writing electrode 3b in the row of subscanning direction. Since stress concentration to a low rigidity part among the rows of writing electrode 3b and deformation or bending of the writing head thereat are eliminated, writing electrodes 3b in each row abut against the latent image carrier uniformly and stably. Consequently, an electrostatic latent image is formed correctly on the latent image carrier 2 and print quality is prevented from lowering.
COPYRIGHT: (C)2004,JPO

59. 发明专利

JP2004138859A Fixing device and image forming apparatus using the same 有权
公开(公告)号：JP2004138859A
公开(公告)日：2004-05-13
申请号：JP2002303958
申请日：2002-10-18
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： YOSHIOKA KENJIRO , ARIGA TOMOE , KATSUKI KIYOTERU
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device using a fixing belt constituted so that the damage of the seam part is prevented, and to provide an image forming apparatus equipped with the fixing device.
SOLUTION: A drive tension member 52 and a tension member 53 are separately brought into contact with a heating member 54. The fixing belt 51 is partly wound between a point P1 and a point P2 on the heating member (press-contact member) 54. The drive tension member 52 is rotated in the direction of view V, a driving force is transmitted to the heating member 54 so as to rotate the heating member 54 in the direction of view U. A seam part obtained by adhering both ends in an overlapped state is formed in the fixing belt 51. The length of the seam part is set longer than a distance between the point P1 and the point P2.
COPYRIGHT: (C)2004,JPO

60. 发明专利

JP2004130597A Image formation device 审中-公开
公开(公告)号：JP2004130597A
公开(公告)日：2004-04-30
申请号：JP2002295929
申请日：2002-10-09
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： KAMOSHITA SHINICHI , KATSUKI KIYOTERU , KITAZAWA ATSUNORI , ABE NOBUMASA , FUJITA TORU , NAKAMURA MASAHIDE
IPC分类号： B41J2/39 , G03G15/05
摘要： PROBLEM TO BE SOLVED: To eliminate image formation failures because of abrasion of a contact type write head and an image carrier, contact instabilities by friction, and image formation failures because of a leak between write heads. SOLUTION: The image formation device is equipped with a writing means 3 for writing an electrostatic latent image on the image carrier 2 by contacting or approaching a surface of the image carrier and impressing a write voltage, a developing means 4 for forming a developer image by supplying a developer 6 and developing the electrostatic latent image formed on the image carrier by the writing means 3, a transfer means 5 for transferring the developer image formed on the image carrier by the developing means 4 to a transfer body, and a means for supplying a dielectric liquid 7 to the surface of the image carrier 2. The electrostatic latent image is written by the writing means 3 in a state while the dielectric liquid 7 is applied to the surface of the image carrier 2. A friction force between the contact type write head (electrode) and the image carrier is reduced, so that the abrasion of the write head and the image carrier is prevented. A life time can be made long by the reduction of an abrasion amount. COPYRIGHT: (C)2004,JPO

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