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1. 发明专利

JP2007219563A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2007219563A
公开(公告)日：2007-08-30
申请号：JP2007148061
申请日：2007-06-04
申请人： Canon Inc , キヤノン株式会社
发明人： OKUBO KAZUHIRO , UYAMA MASAO , KINOSHITA MASAHIDE , ADACHI MOTONORI , OSHIMA MASAKI
IPC分类号： G03G21/00 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus with which stable high-quality image can be obtained by efficiently performing discharge of a developer charging means (residual developer uniformization control means and developer charge amount control means). SOLUTION: The image forming apparatus is equipped with a control means, wherein in discharging the residual toner accumulated in the developer charge amount control means 6 and the residual developer uniformizing means 7 on a photosensitive drum 1 such a voltage which does not fluctuate in the surface potential of the photosensitive drum 1 of approximately 0V is applied by the discharge operation to the developer charge amount control means 6 and the residual developer uniformizing means 7 in the state of approximately 0V in the surface potential of the photosensitive drum 1 to discharge the toner on the photosensitive drum 1 which is approximately 0V, to turn off the AC voltage applied to a charging roller 2 to make the DC voltage approximately 0V for the surface of the photosensitive drum 1 on which the toner is discharged. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过有效地执行显影剂充电装置（残余显影剂均匀化控制装置和显影剂充电量控制装置）的放电可以获得稳定的高质量图像的图像形成装置。图像形成装置配备有控制装置，其中，在感光鼓1上排出累积在显影剂充电量控制装置6中的剩余调色剂和残留的显影剂均匀化装置7，这样的电压不会波动感光鼓1的大约0V的表面电位通过放电操作施加到显影剂充电量控制装置6和残留的显影剂均匀化装置7上，在感光鼓1的表面电位中以大约0V的状态放电大约为0V的感光鼓1上的调色剂，以关闭施加到充电辊2上的AC电压，使直流电压对于其上排出调色剂的感光鼓1的表面大约为0V。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2004117599A Image forming apparatus 有权
公开(公告)号：JP2004117599A
公开(公告)日：2004-04-15
申请号：JP2002278176
申请日：2002-09-24
申请人： Canon Inc , キヤノン株式会社
发明人： ADACHI MOTONORI , OSHIMA MASAKI , UYAMA MASAO , KINOSHITA MASAHIDE , OKUBO KAZUHIRO
IPC分类号： G03G21/14 , G03G15/02 , G03G15/08 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which ejects developer accumulating on a residual developer uniformizing means and a developer electrification quantity control means and, at the same time, prevents the developer from sticking to an electrifying means. SOLUTION: The image forming apparatus includes an image carrier 1, the electrifying means 2, a developing means 4, the developer electrification quantity control means 6 which electrifies developer on the image carrier 1, and the residual developer uniformizing means 7 which uniformizes the developer on the image carrier 1. The image forming apparatus discharging developer accumulating on the developer electrification quantity control means 6 and the residual developer uniformizing means 7 onto the image carrier 1. A voltage applied to the electrifying means 2 is changed when the developer discharged from the residual developer uniformizing means 7 reaches opposite the electrifying means 2 as the surface of the image carrier moves and when the developer discharged from the developer electrification quantity control means 6 reaches opposite the electrifying means 2 as the surface of the image carrier moves. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2004101690A Development device, process cartridge, and electrophotographic image forming apparatus 审中-公开
标题翻译：开发设备，工艺盒和电子图像形成装置
公开(公告)号：JP2004101690A
公开(公告)日：2004-04-02
申请号：JP2002261153
申请日：2002-09-06
申请人： Canon Inc , キヤノン株式会社
发明人： UENO TAKAHITO , NUMAGAMI ATSUSHI , MURAYAMA KAZUNARI , KINOSHITA MASAHIDE , UYAMA MASAO , YAMAGUCHI SEISHI
IPC分类号： G03G15/08 , G03G15/09
CPC分类号： G03G15/0942
摘要： PROBLEM TO BE SOLVED: To maintain a fixed SB gap by preventing contact or impact of a developing sleeve and a layer thickness regulation member. SOLUTION: The development device which develops a latent image with developer and renders it visible includes: a developing sleeve 4a which holds developer thereon; a regulating blade 4c, disposed with a given amount of space left between the developing sleeve 4a and itself, which regulates the thickness of a layer of the developer held on the sleeve 4a; and a developer sealing member 100 which prevents developer from leaking out of a longitudinal end of the developing sleeve 4a. An elastic member 101 which is brought into contact with the regulating blade 4c is disposed near the regulating blade 4c and on the side of the longitudinal end of the developing sleeve 4a rather than the developer sealing member 100. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：通过防止显影套筒和层厚调节构件的接触或冲击来保持固定的SB间隙。解决方案：用显影剂显影潜像并使其可见的显影装置包括：将显影剂保持在其上的显影套筒4a; 调节刀片4c，其设置在显影套筒4a和本身之间留有一定量的空间，其调节保持在套筒4a上的显影剂层的厚度; 以及防止显影剂从显影套筒4a的纵向端部泄漏的显影剂密封构件100。与调节刀片4c接触的弹性构件101设置在调节刀片4c附近并且在显影套筒4a的纵向端部而不是显影剂密封构件100附近。（C） 2004年，日本特许厅

4. 发明专利

JP2003302815A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2003302815A
公开(公告)日：2003-10-24
申请号：JP2002110666
申请日：2002-04-12
申请人： Canon Inc , キヤノン株式会社
发明人： ADACHI MOTONORI , WATANABE YASUNARI , KINOSHITA MASAHIDE
IPC分类号： G03G15/08 , G03G15/02
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus of a cleaner-less system in which the suppression of an image flowing and blurring is satisfactorily compatible with the prevention of the unexpected occurrence of an image memory associated with a simultaneous development and recovery, and by which an image can be satisfactorily formed in a long period of time.
SOLUTION: The ratio I/V of alternating current I flowing into an image carrier to alternating voltage V is set to α, when electrification to a photoreceptor drum 1 is started by applying direct current voltage by an electrifying roller 2 and an electrifying means applies arbitrary alternating voltage of V corresponding to peak to peak voltage not more than two times starting voltage. The alternating current flowing into the image carrier is set to Iac, when arbitrary alternating voltage Vac corresponding to not less than two times the starting voltage is applied. Discharge current ΔIac obtained from the relational expression of 'ΔIac=Iac-α×Vac' is made to not less than 0.5 nA to not more than 2.6 nA per 1 square millimeter of unit area of an image carrier surface to be electrified and per 1 second of unit of time.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种无清洁器系统的图像形成装置，其中抑制图像流动和模糊令人满意地与防止与同时显影相关联的图像存储器的意外发生，恢复，并且可以在长时间内令人满意地形成图像。解决方案：当通过施加直流电压通过带电辊2和带电的电流开始向感光鼓1通电时，流入图像载体的交流电流I与交流电压V的比I / V设定为α 意味着施加对应于峰值电压不超过启动电压两倍的V的任意交变电压。当施加不小于启动电压的两倍的任意交流电压Vac时，流入图像载体的交流电流被设定为Iac。从“ΔIac= Iac-α×Vac”的关系式求出的放电电流ΔIac为每1平方毫米电荷图像载体表面的单位面积不小于0.5nA至2.6nA，并且每1 第二单位时间。版权所有（C）2004，JPO

5. 发明专利

JP2006145940A Image forming apparatus equipped with contact charging means and process cartridge to be equipped to image forming apparatus 有权
标题翻译：配有接触式充电装置的图像形成装置和要装载到图像形成装置的处理盒
公开(公告)号：JP2006145940A
公开(公告)日：2006-06-08
申请号：JP2004337136
申请日：2004-11-22
申请人： Canon Inc , キヤノン株式会社
发明人： TSUKIDA TATSUICHI , KINOSHITA MASAHIDE
IPC分类号： G03G15/02
摘要： PROBLEM TO BE SOLVED: To make the shape of a charging roller 2 into the shape substantially copying the surface shape which contacts a photosensitive drum 1, to make the charging roller surely contact over the whole area in its longitudinal direction, to set pressurizing force low as much as possible, and to suppress permanent deformation of the charging roller.
SOLUTION: In the image forming apparatus and a process cartridge to be equipped to the image forming apparatus having at least a rotatable charged body (photoreceptor drum) 1 and a rotatable charging member (charging roller) 2 having an elastic part which contacts the surface of the charged body and charges the surface of the charged body to predetermined potential, the elastic part of the charging member is in, so-called the reversing crown shape in which its outer diameter continuously becomes larger as going from the center part of its longitudinal direction both end parts and an axis of rotation of the charged body and an axis of rotation of the charging member are in positional relation to cross with a predetermined angle θ.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题为了使充电辊2的形状形成基本上复制与感光鼓1接触的表面形状的形状，使得充电辊在其纵向方向上确定地接触整个区域，以设定尽可能地降低加压力，并且抑制充电辊的永久变形。解决方案：在图像形成装置和装配到图像形成装置的处理盒中，至少具有可旋转的带电体（感光鼓）1和具有弹性部分的可旋转充电部件（充电辊）2 充电体的表面并且将充电体的表面充电到预定电位，充电构件的弹性部分处于被称为反转冠形状，其外径随着从中心部分其长度方向的两端部和带电体的旋转轴线和充电部件的旋转轴线的位置关系与预定角度θ交叉。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004318114A Image forming apparatus, method for adjusting developing unit in image forming apparatus, developing unit and storage medium 有权
公开(公告)号：JP2004318114A
公开(公告)日：2004-11-11
申请号：JP2004090057
申请日：2004-03-25
申请人： Canon Inc , キヤノン株式会社
发明人： IIDA KENICHI , UYAMA MASAO , KINOSHITA MASAHIDE , ADACHI MOTONORI
IPC分类号： G03G15/00 , G03G15/01 , G03G15/08 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To solve a problem that the average triboelectrification of toner in a developing device can not be adjusted to desirable electrostatic charge amount when discharged toner amount is insufficient. SOLUTION: In the adjustment control of the developing device, the number of printed sheets and toner consumption per one sheet are obtained. When cumulative toner usage is smaller than a specified value (S6) in the case of printing the sheets by a specified number (S5), developing adjustment in the developing device is performed (S7) by supplying the developer of a specified amount equivalent to an amount by which the cumulative toner usage is smaller than the specified amount is supplied from the developing device. COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2004117600A Image forming apparatus 有权
公开(公告)号：JP2004117600A
公开(公告)日：2004-04-15
申请号：JP2002278182
申请日：2002-09-24
申请人： Canon Inc , キヤノン株式会社
发明人： KINOSHITA MASAHIDE , UYAMA MASAO , ADACHI MOTONORI , OKUBO KAZUHIRO , OSHIMA MASAKI
IPC分类号： G03G15/08 , G03G15/02 , G03G21/00
CPC分类号： G03G15/0216 , G03G2215/021
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus in which the ability of a residual developer uniformizing means to recover transfer residual developer is improved. SOLUTION: The image forming apparatus includes an image carrier 1, an electrifying means 2 which electrifies the image carrier 1, a developing means 4 which develops an electrostatic latent image, formed on the image carrier 1 electrified, with developer, and the residual developer uniformizing means 7 which is situated upstream of the electrifying means 2 in the direction of the movement of the surface of the image carrier and uniformizes the developer on the image carrier 1. The image forming apparatus applies an AC voltage to the residual developer uniformizing means 7. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2004117507A Developing device, process cartridge, and image forming apparatus 审中-公开
公开(公告)号：JP2004117507A
公开(公告)日：2004-04-15
申请号：JP2002277235
申请日：2002-09-24
申请人： Canon Inc , キヤノン株式会社
发明人： YAMAGUCHI SEISHI , KINOSHITA MASAHIDE , UYAMA MASAO , NUMAGAMI ATSUSHI , MURAYAMA KAZUNARI , UENO TAKAHITO
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device, etc., having a screw shape which effectively prevents variations in screw pitch. SOLUTION: The developing device supplies developer to a developing sleeve by rotating a screw and develops a latent image formed on a photoreceptor drum with developer. The screw has a spiral vane 15 around a rotary shaft 12. The vane 15 is formed so that an angle between the axis of the rotary shaft 12 and a vane face is ≤60°. COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2003043801A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2003043801A
公开(公告)日：2003-02-14
申请号：JP2001230685
申请日：2001-07-30
申请人： Canon Inc , キヤノン株式会社
发明人： YAMAGUCHI SEISHI , KINOSHITA MASAHIDE , UYAMA MASAO
IPC分类号： G03G21/00 , G03G15/08 , G03G21/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming device that highly accurately detects the toner supply device of a developing device is empty of toner and that is free of image formation failure and detecting failure. SOLUTION: When the concentration of developer in the developing container is lower than a limit value (L), the image forming device determines no more toner is left in the toner storage container. The image forming device has a means for detecting a quantity of toner remaining in the toner storage container, and an alarming means which, when the toner remaining in the toner storage container becomes equal to or smaller than a fixed quantity, gives a signal indicating that the remaining quantity is small. The limit value (L) is effective as long as the signal indicating the small quantity of remaining toner is being given.
摘要翻译：要解决的问题：提供一种高精度地检测显影装置的调色剂供应装置的图像形成装置没有调色剂并且没有图像形成失败和检测失败的图像形成装置。解决方案：当显影容器中的显影剂浓度低于极限值（L）时，图像形成装置确定不再存在调色剂储存容器中的调色剂。图像形成装置具有用于检测残留在调色剂存储容器中的调色剂量的装置，以及当剩余在调色剂储存容器中的调色剂变得等于或小于固定量时的报警装置，给出表示剩余量很小。只要给出指示少量剩余调色剂的信号，限制值（L）就是有效的。

10. 发明专利

JP2005062848A Image forming apparatus and its control method 审中-公开
标题翻译：图像形成装置及其控制方法
公开(公告)号：JP2005062848A
公开(公告)日：2005-03-10
申请号：JP2004214852
申请日：2004-07-22
申请人： Canon Inc , キヤノン株式会社
发明人： KINOSHITA MASAHIDE , UYAMA MASAO , IIDA KENICHI
IPC分类号： G03G21/00 , G03G15/08
CPC分类号： G03G15/0849 , G03G15/0853 , G03G15/0893 , G03G2215/0119
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus and its control method that can release toner empty without taking time more than necessary when the toner supply from a toner receiving unit is well performed, and also quickly notify a user of the status of the toner receiving unit when it is toner empty or a failed toner receiving unit is installed. SOLUTION: The apparatus determines whether the toner receiving unit 5 includes toner on the basis of the detection value of a toner concentration sensor 46 for detecting the toner concentration of developer in a development unit 4, displays an alarm display for urging the replacement of the toner receiving unit 5 when lack of the toner is determined, and performs a toner concentration recovery sequence for recovering the toner concentration in the development unit 4 by detecting the replacement of the toner receiving unit 5. When the detection value obtained by the toner concentration sensor reaches an intermediate target value (V1) that is set between a predetermined target value with respect to toner concentration recovery and toner concentration threshold (Vn), the toner concentration recovery sequence is terminated. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像形成装置及其控制方法，当从调色剂接收单元进行的调色剂供给良好地执行时，可以在不花费时间的情况下释放调色剂，并且还快速地通知用户调色剂接收单元在墨粉未用或墨粉接收单元故障时的状态。解决方案：该设备基于用于检测显影单元4中的显影剂的调色剂浓度的调色剂浓度传感器46的检测值来确定调色剂接收单元5是否包括调色剂，显示用于促使更换的显示器并且通过检测调色剂接收单元5的更换来执行用于恢复显影单元4中的调色剂浓度的调色剂浓度恢复顺序。当由调色剂获得的检测值浓度传感器达到设定在相对于调色剂浓度恢复的预定目标值和调色剂浓度阈值（Vn）之间的中间目标值（V1）时，调色剂浓度恢复顺序终止。版权所有（C）2005，JPO＆NCIPI

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