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    • 4. 发明授权
    • Image forming apparatus and process cartridge including charging bias adjustment control
    • 图像形成装置和处理盒包括充电偏压调节控制
    • US07873291B2
    • 2011-01-18
    • US12134701
    • 2008-06-06
    • Akio KosugeTakaya MuraishiTakeshi ShintaniYasushi AkibaSatoshi HatoriKaoru Yoshino
    • Akio KosugeTakaya MuraishiTakeshi ShintaniYasushi AkibaSatoshi HatoriKaoru Yoshino
    • G03G15/02G03G15/00
    • G03G15/0266G03G15/5008
    • An image forming apparatus includes an image bearing member, a charging device to apply a charging bias, a developing device to develop a latent electrostatic image with toner, a transfer device to transfer the toner image to a recording medium, a fixing device to fix the toner image on the recording medium, an image formation speed switching device to switch from one image formation speed to another speed, a storage device to store a charging current target of the charging bias for each image formation speed, an electric current detection device to detect electric current flown through the charging device, and an AC voltage adjustment device to adjust AC voltage of the charging bias applied to the charging device. The charging current target is set for each of at least two image formation speeds such that each AC voltage adjusted by the AC voltage adjustment device is substantially the same.
    • 图像形成装置包括图像承载部件,施加充电偏压的充电装置,用调色剂显影静电潜像的显影装置,将调色剂图像转印到记录介质的转印装置,固定装置 记录介质上的调色剂图像,从一个图像形成速度切换到另一个速度的图像形成速度切换装置;存储装置,用于存储针对每个图像形成速度的充电偏压的充电电流目标;电流检测装置,用于检测 通过充电装置流过的电流和AC电压调整装置,用于调整施加到充电装置的充电偏压的AC电压。 对于至少两个图像形成速度中的每一个设置充电电流目标,使得由AC电压调节装置调节的每个AC电压基本相同。
    • 8. 发明申请
    • IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
    • 图像形成装置和处理盒
    • US20080304843A1
    • 2008-12-11
    • US12134701
    • 2008-06-06
    • Akio KOSUGETakaya MuraishiTakeshi ShintaniYasushi AkibaSatoshi HatoriKaoru Yoshino
    • Akio KOSUGETakaya MuraishiTakeshi ShintaniYasushi AkibaSatoshi HatoriKaoru Yoshino
    • G03G15/02
    • G03G15/0266G03G15/5008
    • An image forming apparatus including an image bearing member the moving surface of which travels, a charging device including a charging member located facing the moving surface of the image bearing member, which uniformly charges the moving surface of the image bearing member to form a latent electrostatic image thereon by applying a charging bias in which an AC voltage is overlapped with a DC voltage to the charging member, a developing device to develop the latent electrostatic image with toner to form a toner image on the moving surface of the image bearing member, a transfer device to transfer the toner image on the moving surface of the image bearing member to a recording medium, a fixing device to fix the toner image on the recording medium, an image formation speed switching device to switch from one image formation speed to another image formation speed among multiple image formation speeds by changing a surface traveling speed of the image bearing member according to a particular switching condition, a storage device to store a charging current target of the charging bias applied to the charging member for each of the multiple image formation speeds, an electric current detection device to detect an electric current flown through the charging member and an AC voltage adjustment device to adjust an AC voltage of the charging bias applied to the charging member such that the electric current detected by the electric current detection device approaches the charging current target stored at the storage device which corresponds to the image formation speed when the electric current is detected. With regard to at least two image formation speeds among the multiple image speeds, the charging current target is set for each of the at least two image formation speeds such that each AC voltage adjusted by the AC voltage adjustment device is substantially the same.
    • 一种图像形成装置,包括其运动表面行进的图像承载部件,充电装置包括面向图像承载部件的移动表面的充电部件,其对图像承载部件的移动表面均匀地充电以形成静电 通过向充电部件施加AC电压与DC电压重叠的充电偏压的显影装置,利用调色剂显影静电潜像以在图像承载部件的移动表面上形成调色剂图像的显影装置, 转印装置将图像承载部件的移动表面上的调色剂图像转印到记录介质上,将调色剂图像定影在记录介质上的定影装置,从一个图像形成速度切换到另一图像的图像形成速度切换装置 通过根据特定方式改变图像承载部件的表面行进速度,在多个图像形成速度之间的形成速度 存储装置,用于存储针对多个图像形成速度中的每一个施加到充电构件的充电偏压的充电电流目标;电流检测装置,用于检测流过充电构件的电流和AC电压 调节装置,用于调整施加到充电部件的充电偏压的交流电压,使得由电流检测装置检测的电流接近存储在存储装置处的充电电流目标,对应于图像形成速度,当电流为 检测到。 关于多个图像速度中的至少两个图像形成速度,对于至少两个图像形成速度中的每一个设置充电电流目标,使得由AC电压调节装置调节的每个AC电压基本相同。
    • 9. 发明申请
    • IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
    • 图像形成装置和处理盒
    • US20090252510A1
    • 2009-10-08
    • US12416555
    • 2009-04-01
    • Takeshi ShintaniSatoshi HatoriYasushi AkibaKaoru YoshinoAkio KosugeTakaya Muraishi
    • Takeshi ShintaniSatoshi HatoriYasushi AkibaKaoru YoshinoAkio KosugeTakaya Muraishi
    • G03G15/00G03G21/18
    • G03G21/007
    • Provided is an image forming apparatus containing: an image-bearing member; a toner removal unit configured to remove a toner remained on the image-bearing member; a coating unit configured to coat a surface of the image-bearing member with a lubricity imparting agent; a unit configured to change a coated state of the lubricity imparting agent which has been applied to the image-bearing member by the coating unit; and a controlling unit configured to control the coating unit so as to operate a coating mode for at least the period when the image-bearing member is rotated once or more in the course of image formation, wherein the coating mode is a mode in which an amount of the lubricity imparting agent applied onto the image-bearing member is increased compared to an applied amount of the lubricity imparting agent during an ordinal operation for image formation.
    • 提供一种图像形成装置,包括:图像承载部件; 配置为去除保留在图像承载部件上的调色剂的调色剂去除单元; 涂覆单元,其被配置为用润滑赋予剂涂覆图像承载部件的表面; 被配置为通过涂布单元改变已经施加到图像承载构件的润滑性赋予剂的涂布状态的单元; 以及控制单元,被配置为控制所述涂覆单元,以便在图像承载构件在图像形成过程中旋转一次或多次的时间期间至少操作涂覆模式,其中所述涂覆模式是其中 与图像形成顺序操作中的润滑性赋予剂的涂布量相比,施加到图像承载部件上的润滑性赋予剂的量增加。