发明授权
US5159393A Image forming apparatus having transfer device and image bearing member
traveling at different speeds
失效
具有转印装置和图像承载部件以不同速度行进的图像形成装置
- 专利标题： Image forming apparatus having transfer device and image bearing member traveling at different speeds
- 专利标题（中）： 具有转印装置和图像承载部件以不同速度行进的图像形成装置
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申请号： US561075申请日： 1990-08-01
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公开(公告)号： US5159393A公开(公告)日： 1992-10-27
- 发明人: Koichi Hiroshima , Yukihiro Ohzeki , Junji Araya , Yasushi Sato , Tatsunori Ishiyama , Kimio Nakahata , Koichi Tanigawa , Akihiko Takeuchi , Takayasu Yuminamochi , Yoshiro Tsuchiya
- 申请人： Koichi Hiroshima , Yukihiro Ohzeki , Junji Araya , Yasushi Sato , Tatsunori Ishiyama , Kimio Nakahata , Koichi Tanigawa , Akihiko Takeuchi , Takayasu Yuminamochi , Yoshiro Tsuchiya
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX1-199333 19890802; JPX1-288171 19891106
- 主分类号： G03G15/16
- IPC分类号： G03G15/16
摘要：
An image forming apparatus includes a movable image bearing member, an image forming device for forming the image bearing member, and an image transfer device contactable to the image bearing member at an image transfer position. The transfer device transfers the image formed by the image forming device onto a transfer material while the transfer material is conveyed through the transfer position together with the image bearing member, wherein the transfer device has a hardness of 20-40 degrees (Asker-C), and it is pressed to the image bearing member at a pressure of 50-200 g/cm.sup.2, and wherein a peripheral speed of the transfer device at the transfer position during a transfer operation is higher than a peripheral speed of the image bearing member at the transfer position.