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1. 发明授权

US6025109A Method for cleaning a transfer device of an image forming apparatus 失效
标题翻译：清洁图像形成装置的传送装置的方法
公开(公告)号：US6025109A
公开(公告)日：2000-02-15
申请号：US80243
申请日：1998-05-18
申请人： Kenji Karashima , Hisashi Fuzisaki
发明人： Kenji Karashima , Hisashi Fuzisaki
IPC分类号： G03G21/14 , G03G15/16 , G03G21/00
CPC分类号： G03G15/1675 , G03G15/168 , G03G2215/1652
摘要： A contact type image transferring system and method incorporated in an image forming apparatus for cleaning residual toner on a transfer roller. The transfer roller is in contact with a photoconductive drum and forms a nip between the roller and the drum. A sheet of paper passes through the nip and a toner image on the drum is transferred to the sheet of paper. A power source applies a first bias current which has the same polarity as regularly charged toner to the transfer roller from when the image carrier starts its rotation after an inputting of a print start request until the sheet reaches the nip. Then the power source applies a second bias current having the same polarity as the first bias current to the transferring device when the sheet is at the nip to transfer the toner image on the image carrier to the sheet.
摘要翻译：一种结合在用于清除转印辊上的残留调色剂的图像形成装置中的接触型图像转印系统和方法。转印辊与感光鼓接触并在辊和鼓之间形成辊隙。一张纸通过辊隙，鼓上的调色剂图像被转印到纸张上。在输入打印开始请求直到纸张到达辊隙之后，电源从图像载体开始旋转时，将与规则带电的调色剂具有相同极性的第一偏置电流施加到转印辊。然后当片材处于夹持位置时，电源将具有与第一偏置电流相同极性的第二偏置电流施加到转印装置，以将图像载体上的调色剂图像转印到片材上。

2. 发明授权

US5857132A Apparatus and method for cleaning a transfer device of an image forming apparatus 失效
标题翻译：用于清洁图像形成装置的转印装置的装置和方法
公开(公告)号：US5857132A
公开(公告)日：1999-01-05
申请号：US935111
申请日：1997-09-29
申请人： Haruji Mizuishi , Hisashi Fuzisaki , Mayumi Yoshida , Kenji Karashima , Yasushi Akiba
发明人： Haruji Mizuishi , Hisashi Fuzisaki , Mayumi Yoshida , Kenji Karashima , Yasushi Akiba
IPC分类号： G03G15/02 , G03G15/00 , G03G15/16
CPC分类号： G03G15/1675 , G03G15/168 , G03G15/6535 , G03G2215/1652
摘要： A contact type image transferring system and method, incorporated in an image forming apparatus, for cleaning a residual toner on a transfer roller. The transfer roller is in contact with a photoconductive drum and forms a nip between the roller and the drum. A sheet of paper passes through the nip and a toner image on the drum is transferred to the sheet of paper. When the sheet of paper is not at the nip, not only a transfer voltage but also a charging voltage is applied at a same time. The polarities of the voltages applied to the charger and to the transfer roller cause the toner on the transfer roller to be removed.
摘要翻译：一种接合型图像转印系统和方法，其结合在图像形成装置中，用于清洁转印辊上的残留调色剂。转印辊与感光鼓接触并在辊和鼓之间形成辊隙。一张纸通过辊隙，鼓上的调色剂图像被转印到纸张上。当纸张不在辊隙时，不仅同时施加转印电压而且施加充电电压。施加到充电器和转印辊上的电压的极性导致转印辊上的调色剂被去除。

3. 发明授权

US6064470A Apparatus and method for cleaning a transfer device of an image forming apparatus 失效
标题翻译：用于清洁图像形成装置的转印装置的装置和方法
公开(公告)号：US6064470A
公开(公告)日：2000-05-16
申请号：US537352
申请日：1995-10-02
申请人： Kenji Karashima , Hisashi Fuzisaki , Mayumi Yoshida
发明人： Kenji Karashima , Hisashi Fuzisaki , Mayumi Yoshida
IPC分类号： G03G15/00 , G03G15/16
CPC分类号： G03G15/602 , G03G15/168 , G03G2215/1614 , G03G2215/1652
摘要： A contact type image transferring device and method incorporated in an image forming apparatus for cleaning a residual toner on a transfer roller. The transfer roller is in contact with a photoconductive drum at a first force and forms nip between the roller and the drum. A sheet of paper passes through the nip and a toner image on the drum is transferred to the sheet of paper. When the sheet of paper is not at the nip, the transfer roller is moved such that the force of the roller against the drum is a second force which is different from the first force. A cleaning bias voltage is applied to the roller and toner on the roller is transferred to the drum.
摘要翻译：一种结合在用于清洁转印辊上的残留调色剂的图像形成装置中的接触型图像转印装置和方法。转印辊以第一力与感光鼓接触并在辊和滚筒之间形成辊隙。一张纸通过辊隙，鼓上的调色剂图像被转印到纸张上。当纸张不在辊隙处时，转印辊被移动，使得辊抵靠鼓的力是与第一力不同的第二力。将清洁偏压施加到辊上，并将辊上的调色剂转印到滚筒上。

4. 发明授权

US5822649A Apparatus for cleaning a transfer device of an image forming apparatus 失效
标题翻译：用于清洁图像形成装置的传送装置的装置
公开(公告)号：US5822649A
公开(公告)日：1998-10-13
申请号：US654097
申请日：1996-05-28
申请人： Kenji Karashima , Hisashi Fuzisaki
发明人： Kenji Karashima , Hisashi Fuzisaki
IPC分类号： G03G21/14 , G03G15/16
CPC分类号： G03G15/1675 , G03G15/168 , G03G2215/1652
摘要： A contact type image transferring system and method incorporated in an image forming apparatus for cleaning residual toner on a transfer roller. The transfer roller is in contact with a photoconductive drum and forms a nip between the roller and the drum. A sheet of paper passes through the nip and a toner image on the drum is transferred to the sheet of paper. A power source applies a first bias current which has the same polarity as regularly charged toner to the transfer roller from when the image carrier starts its rotation after an inputting of a print start request until the sheet reaches the nip. Then the power source applies a second bias current having the same polarity as the first bias current to the transferring device when the sheet is at the nip to transfer the toner image on the image carrier to the sheet.
摘要翻译：一种结合在用于清除转印辊上的残留调色剂的图像形成装置中的接触型图像转印系统和方法。转印辊与感光鼓接触并在辊和鼓之间形成辊隙。一张纸通过辊隙，鼓上的调色剂图像被转印到纸张上。在输入打印开始请求直到纸张到达辊隙之后，电源从图像载体开始旋转时，将与规则带电的调色剂具有相同极性的第一偏置电流施加到转印辊。然后当片材处于夹持位置时，电源将具有与第一偏置电流相同极性的第二偏置电流施加到转印装置，以将图像载体上的调色剂图像转印到片材上。

5. 发明授权

US5621509A Apparatus and method for cleaning a transfer device of an image forming apparatus 失效
标题翻译：用于清洁图像形成装置的转印装置的装置和方法
公开(公告)号：US5621509A
公开(公告)日：1997-04-15
申请号：US601164
申请日：1996-02-13
申请人： Kenji Karashima , Hisashi Fuzisaki
发明人： Kenji Karashima , Hisashi Fuzisaki
IPC分类号： G03G15/16 , G03G21/10 , G03G21/00
CPC分类号： G03G15/168 , G03G2215/021 , G03G2215/1628 , G03G2215/1638 , G03G2215/1642 , G03G2215/1652 , G03G2215/1661
摘要： A contact type image transferring system and method incorporated in an image forming apparatus for cleaning residual toner on a transfer roller. The transfer roller is in contact with a photoconductive drum and forms a nip between the roller and the drum. A sheet of paper passes through the nip and a toner image on the drum is transferred to the sheet of paper at the nip. When the sheet of paper is not at the nip, a first transfer voltage is applied to the transfer roller for 3 to 20 seconds after a paper feed jam is corrected. The polarity of the voltage causes the toner on the transfer roller to be removed. Then a second transfer voltage is applied to the transfer roller which has a polarity which is opposite to the polarity of the first transfer voltage. The voltage difference between the transfer roller and photoconductive drum may be formed by applying bias voltages to both the photoconductive drum and the transfer roller.
摘要翻译：一种结合在用于清除转印辊上的残留调色剂的图像形成装置中的接触型图像转印系统和方法。转印辊与感光鼓接触并在辊和鼓之间形成辊隙。一张纸通过辊隙，并且鼓上的调色剂图像在辊隙处转印到纸张上。当纸张不在辊隙时，在进行卡纸纠正之后，将第一转印电压施加到转印辊上3至20秒。电压的极性导致转印辊上的调色剂被去除。然后将第二转印电压施加到具有与第一转印电压的极性相反的极性的转印辊。可以通过向感光鼓和转印辊两者施加偏压来形成转印辊和感光鼓之间的电压差。

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