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1. 发明专利

JP2004020764A Image forming device 审中-公开
公开(公告)号：JP2004020764A
公开(公告)日：2004-01-22
申请号：JP2002173653
申请日：2002-06-14
申请人： Canon Inc , キヤノン株式会社
发明人： TAGAMI MASAHIDE , MAEDA MASAFUMI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To prevent degradation in image quality and worsening of operation noise from occurring by preventing the deformation of a fixing frame without increasing the number of components, thereby maintaining the backlash of gears constant.
SOLUTION: In an image forming device for conveying a sheet material to form an image, and conveying the sheet material after image formation to a fixing device 150 and fixing images thereto, a projecting part 157c disposed at a frame 157 constituting the fixing device 150 is engaged with a pressing section 180 of a device main body.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004001981A Sheet carrying device and image forming device 审中-公开
公开(公告)号：JP2004001981A
公开(公告)日：2004-01-08
申请号：JP2002161111
申请日：2002-06-03
申请人： Canon Inc , キヤノン株式会社
发明人： MAEDA MASAFUMI , TAGAMI MASAHIDE , MIYAZAKI YOSHIYUKI , TSUBAKIMOTO YASUTO
IPC分类号： G03G15/00 , B65H5/00 , B65H5/02
摘要： PROBLEM TO BE SOLVED: To surely carry a sheet even such as a post card, an envelope or the like without jamming and disturbance in a fixed image. SOLUTION: In this sheet carrying device for carrying sheets by means of conveyer belts 113 stretched around a first conveyer pulley 118 and second conveyer pulleys, the conveyer belts 113 comprise at least three belts arranged divided in the cross direction nearly transverse to a sheet conveyance direction, and the height from sheets on the conveyer belt 113 at the center section in the cross direction of the sheet conveyance direction out of the conveyer belts 113 made lower than the height from sheets on the other conveyer belts 113. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2005314026A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2005314026A
公开(公告)日：2005-11-10
申请号：JP2004131076
申请日：2004-04-27
申请人： Canon Inc , キヤノン株式会社
发明人： MAEDA MASAFUMI , TAGAMI MASAHIDE
IPC分类号： G03G15/00 , B65H5/02
摘要： PROBLEM TO BE SOLVED: To provide an image forming device capable of reliably conveying short size paper to a fixing unit without degrading defects (belt trace) of an image in the printing of the regular size paper. SOLUTION: In a sheet conveying device having a transfer means to electrostatically transfer a toner image formed on an image carrier on a recording medium, a fixing means to fix the toner image transferred on the recording medium by the transfer means, and a conveying means for conveying the recording medium interposed between the transfer means and the fixing means, the conveying means has a conveying belt extending so as to convey the recording medium in the direction of the fixing means, a first conveying pulley to transmit the drive with the conveying belt mounted thereon, and a second conveying pulley driven by the drive of the conveying belt. A member with the low friction coefficient lower than the friction coefficient of the conveying belt is provided on a center part of the second conveying pulley, and at least two conveying belts are installed on both sides of the member of the low friction coefficient. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够将短尺寸纸张可靠地传送到定影单元的图像形成装置，而不会降低正常尺寸纸张的打印中的图像的缺陷（带迹线）。解决方案：在具有用于将形成在图像载体上的调色剂图像静电转印到记录介质上的转印装置的片材输送装置中，固定装置用于通过转印装置固定转印在记录介质上的调色剂图像，传送装置，用于传送介于传送装置和定影装置之间的记录介质，传送装置具有延伸的传送带，以沿着固定装置的方向传送记录介质;第一输送带轮，用于将驱动器与输送带，以及由输送带的驱动驱动的第二输送皮带。摩擦系数低于输送带的摩擦系数的构件设置在第二输送带轮的中心部分，并且至少两个输送带安装在低摩擦系数的构件的两侧。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2004061595A Image forming apparatus and processing cartridge 审中-公开
公开(公告)号：JP2004061595A
公开(公告)日：2004-02-26
申请号：JP2002216278
申请日：2002-07-25
申请人： Canon Inc , キヤノン株式会社
发明人： MIYAZAKI YOSHIYUKI , TAGAMI MASAHIDE , MAEDA MASAFUMI , TSUBAKIMOTO YASUTO
IPC分类号： G03G21/18
摘要： PROBLEM TO BE SOLVED: To prevent electrostatic breakdown and to improve safety for the user by preventing toner, paper powder, dust and the like from adhering to a contact point part, stabilizing a contact point and hiding the contact point during non-mounting a process cartridge.
SOLUTION: An image forming apparatus covers the contact point part on a member 1, having the contact point part, and has a member 2 which moves vertically the member 1. During noncontacting of a storage means, the member 2 is lowered to the member 1, and covers the contact point on the member 1. During contacting, the member 2 is pushed up with the process cartridge, brought into contact with the contact point part, and covers the whole contact part of a connection means and the storage means.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2004037685A Image forming apparatus 审中-公开
公开(公告)号：JP2004037685A
公开(公告)日：2004-02-05
申请号：JP2002192893
申请日：2002-07-02
申请人： Canon Inc , キヤノン株式会社
发明人： TAGAMI MASAHIDE , MAEDA MASAFUMI , MIYAZAKI YOSHIYUKI , TSUBAKIMOTO YASUTO
IPC分类号： G03G21/20 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus in which efficient cooling is performed with a minimum current of air, noise is reduced and the space is saved. SOLUTION: A current of air led to the inside of the apparatus by a fan is first passed through a duct 180, thereby cooling a laser scanner unit 140. Thereafter, as shown by the arrow A in the drawing, the current of air flows into a process cartridge 130 through the opening 132 of the process cartridge 130 from the vent hole 181 of the duct 180, thereby cooling the process cartridge 130 as well. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2004294949A Image forming apparatus 审中-公开
公开(公告)号：JP2004294949A
公开(公告)日：2004-10-21
申请号：JP2003089756
申请日：2003-03-28
申请人： Canon Inc , キヤノン株式会社
发明人： IIMURA HIDEHIRO , TAGAMI MASAHIDE
IPC分类号： G03G21/20 , G02B26/10 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that prevents toner fusion and image quality degradation and improves image quality and reliability without increasing the production cost. SOLUTION: The image forming apparatus includes: a light emitting means; a deflection scanning means; an image forming optical part: a placing component which has a scanning optical device and places the scanning optical device on it; an image carrier; a developing means; and a blowing means for creating a flow of air. In the image forming apparatus, an air circulation space in which air supplied from the blowing means circulates is provided between the scanning optical device and the placing component. The air circulating in the air circulation space cools the heat generation part of the deflection scanning means. In a position that is different from the path of the light beam, the placing component has an opening through which air circulating in the air circulation space is passed in the direction of the developing means. The air passed through the opening cools the developing means. COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2004037876A Process cartridge and image forming device 有权
公开(公告)号：JP2004037876A
公开(公告)日：2004-02-05
申请号：JP2002195388
申请日：2002-07-04
申请人： Canon Inc , キヤノン株式会社
发明人： GOTO HIROSHI , MIURA SEIETSU , TAMURA NOBUYA , MIYAZAKI YOSHIYUKI , MAEDA MASAFUMI , TAGAMI MASAHIDE , NONAKA FUMITO
IPC分类号： G03G21/18
摘要： PROBLEM TO BE SOLVED: To provide a process cartridge and an image forming device which can remove developers and foreign matter when both contact parts are connected and, thereby, enables the stable continuity of the both contact parts even when the foreign matter such as the developers and paper powder is attached to the electrical contact parts of the device main body or the process cartridge. SOLUTION: An electrical connection means 31 of the device main body side is composed of a main body contact parts 33(a, b) made of spring material for being connected to a storage element contact part of a storage means 20 of the process cartridge B, a contact holder 32 which holds the body contact part 33 and a spring 36 which energizes the contact holder 32 in the anticlockwise direction. When the process cartridge B is mounted on the device main body, the contact holder 32 is brought into contact with protruded ribs 24(a, b) formed adjacent to the storage element contact part of the process cartridge B and the main body contact part 33 and the storage element contact part are slidably contacted and are electrically connected in nearly specified distance (d) along the mounting direction of the cartridge. COPYRIGHT: (C)2004,JPO

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