The invention provides an imaging device, including: for carrying a toner toner image bearing member; contact bearing parts of the toner toner bearing components, will be in the image bearing member is formed on a toner image with toner; and in the relative position of the electrode part in relative position, the electrode part is inserted between the electrode part via the image bearing parts bearing parts and toner and toner bearing components relative. A toner image is formed on the image bearing member by changing the value of the voltage applied to the electrode portion according to the image information. A toner and an image carrying member carried on the toner bearing member are in contact with each other in the toner contact area. By changing the value of the voltage applied to the electrode portion, the toner moves between the toner bearing member and the image bearing member in the toner moving region. The direction of movement of the toner moving region relative to the image bearing member is located downstream of the toner contact area.
【技术实现步骤摘要】
【国外来华专利技术】
本专利技术涉及一种用于通过在记录材料(件)上承载调色剂来形成图像的成像装置。
技术介绍
作为常规成像装置,使用针状电极的多针式打印机被使用(美国专利第4,396,927号)在多针式打印机中,带有大量针状电极的成像电极和筒形对置电极以预定间隔(间隙)相对地布置,记录材料插入所述预定间隔中与成像电极接触。在该状态下,对应于图像信号的电压施加到成像电极以导致间隙放电,使得形成调色剂图像。在使用针状电极作为成像电极的常规多针式打印机中,不能充分地获得图像部分的密度。此外,产生这样的问题,即不能充分地减小导致调色剂淀积在非图像部分上的所谓的起雾。图29是使用针状电极的常规成像装置的示意图,其中对置(相对)电极302承载调色剂T并且经由记录材料303与成像电极301相对地布置。承载在对置电极302上的调色剂T具有调色剂接触区域,在所述调色剂接触区域中调色剂接触记录材料303。在该状态下,对应于电信号的电压施加到成像电极301,使得调色剂T淀积在记录材料303上。同时,记录材料在箭头方向上以某个速度运动,使得调色剂图像形成于记录材料上。然而,在成像电极调色剂图像以如上所述的构 ...
【技术保护点】
【技术特征摘要】
【国外来华专利技术】...
【专利技术属性】
技术研发人员:小原泰成,依田宁雄,内山高广,工藤庆树,川村武志,折原辰昌,土桥直人,花本英俊,
申请(专利权)人:佳能株式会社,
类型:
国别省市:
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。