公开(公告)号：EP0381459A2

公开(公告)日：1990-08-08

申请号：EP90300972.8

申请日：1990-01-30

申请人： BROTHER KOGYO KABUSHIKI KAISHA

发明人： Akao, Michitoshi, c/o Brother Kogyo K.K. ,  Sakakibara, Kenji, c/o Brother Kogyo K.K. ,  Yoshihara, Hideo, c/o Brother Kogyo K.K. ,  Hayashi, Takayuki, c/o Brother Kogyo K.K. ,  Nakata, Takashi, c/o Brother Kogyo K.K. ,  Kimura, Hiroaki, c/o Brother Kogyo K.K.

IPC分类号： G03B27/58 ,  G03F7/00

CPC分类号： G03B27/32 ,  G03B2227/325 ,  G03F7/0022

摘要： A sheet supplying device for supplying an uppermost sheet of a stack of sheets (16) in a sheet cassette (17) used in an image forming apparatus includes suction cups (31) movable into and out of contact with the uppermost sheet in the sheet cassette, an evacuator for developing a vacuum in the suc­tion cups to enable the suction cups to attract the upper­most sheet, a moving member (32) for upwardly and downwardly moving the suction cups to pick up the sheet from the sheet cassette, a sheet feeding member (19) for feeding the sheet from the moving member along a sheet feed path, and a control system for judging on the basis of a detection signal from each sensor (33) for detecting an image forming error provided in the image forming apparatus whether the error occurs during the sheet supplying operation, and when judging that the image forming error occurs during a sheet supplying opera­tion, the control unit ceasing the sheet supplying operation and controlling the driving of at least one of the suction cups, the evacuator, moving member and the sheet feeding member so that at least one of those members carries out a predetermined operation selected from the series of opera­tions to be performed by at least one of the members.

摘要翻译： 用于在图像形成装置中使用的纸张盒（17）中的纸张堆叠的最上面的纸张供给装置包括：吸盘（31），其能够移动到纸张盒中与最上面的纸张接触和脱离接触 ，用于在吸盘中显影真空以使吸盘能够吸引最上面的片材的抽空器，用于向上和向下移动吸盘以从片材盒拾取片材的移动构件（32），片材进给构件 （19），用于沿片材馈送路径从移动构件馈送片材;以及控制系统，用于基于来自用于检测在图像形成装置中提供的图像形成错误的每个传感器（33）的检测信号进行判断， 在片材供应操作期间发生错误，并且当判断在片材供应操作期间发生图像形成错误时，控制单元停止片材供应操作并且至少控制驾驶 吸入杯，抽空器，移动构件和片材进给构件的至少一个，使得这些构件中的至少一个执行从要由至少一个构件执行的一系列操作中选择的预定操作。

公开(公告)号：EP0381459A3

公开(公告)日：1991-07-31

申请号：EP90300972.8

申请日：1990-01-30

申请人： BROTHER KOGYO KABUSHIKI KAISHA

发明人： Akao, Michitoshi, c/o Brother Kogyo K.K. ,  Sakakibara, Kenji, c/o Brother Kogyo K.K. ,  Yoshihara, Hideo, c/o Brother Kogyo K.K. ,  Hayashi, Takayuki, c/o Brother Kogyo K.K. ,  Nakata, Takashi, c/o Brother Kogyo K.K. ,  Kimura, Hiroaki, c/o Brother Kogyo K.K.

IPC分类号： G03B27/58 ,  G03F7/00

CPC分类号： G03B27/32 ,  G03B2227/325 ,  G03F7/0022

摘要： A sheet supplying device for supplying an uppermost sheet of a stack of sheets (16) in a sheet cassette (17) used in an image forming apparatus includes suction cups (31) movable into and out of contact with the uppermost sheet in the sheet cassette, an evacuator for developing a vacuum in the suc­tion cups to enable the suction cups to attract the upper­most sheet, a moving member (32) for upwardly and downwardly moving the suction cups to pick up the sheet from the sheet cassette, a sheet feeding member (19) for feeding the sheet from the moving member along a sheet feed path, and a control system for judging on the basis of a detection signal from each sensor (33) for detecting an image forming error provided in the image forming apparatus whether the error occurs during the sheet supplying operation, and when judging that the image forming error occurs during a sheet supplying opera­tion, the control unit ceasing the sheet supplying operation and controlling the driving of at least one of the suction cups, the evacuator, moving member and the sheet feeding member so that at least one of those members carries out a predetermined operation selected from the series of opera­tions to be performed by at least one of the members.