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1. 发明授权

US5418604A Image forming method and apparatus with automatic skew control 失效
标题翻译：具有自动倾斜控制的图像形成方法和装置
公开(公告)号：US5418604A
公开(公告)日：1995-05-23
申请号：US103789
申请日：1993-08-10
申请人： Masanao Nagakura , Hiroji Uchimura , Yasunori Hamada , Nobuyuki Hayashida , Haruhisa Inagaki , Yoji Houki
发明人： Masanao Nagakura , Hiroji Uchimura , Yasunori Hamada , Nobuyuki Hayashida , Haruhisa Inagaki , Yoji Houki
IPC分类号： G03G15/00 , G03G21/00
CPC分类号： G03G15/6502 , G03G15/6564 , G03G15/6567
摘要： Disclosed are an image forming method for checking pickup of a sheet on which an image is to be formed before correcting skewing of the sheet, and an image forming apparatus. This method comprises a first step of permitting a pickup roller to pick up a sheet from a sheet retaining unit and causing the leading edge of the sheet to abut against resist rollers; a second step of permitting a detecting mechanism to detect that the sheet has been picked up by the pickup roller; a third step of rotating the pickup roller by a predetermined amount according to the detection of the detecting mechanism; a fourth step of driving the resist rollers to feed the sheet and driving an image forming mechanism for forming an image on the sheet; and a fifth step of permitting the image forming mechanism to form an image on the fed sheet. The apparatus comprises a sheet retaining unit for retaining sheets; a pickup roller for picking up a sheet from the sheet retaining unit; resist rollers against which the leading edge of the sheet abuts; an image forming mechanism for forming an image on a sheet fed by the resist rollers; a detecting mechanism for detecting that the sheet has been picked up by the pickup roller; and a controller for rotating the pickup roller, then rotating the pickup roller by a predetermined amount according to a sheet detection output of the detecting mechanism, then stopping rotating the pickup roller, and then rotating the resist rollers.
摘要翻译：公开了一种图像形成方法，用于在校正片材的偏斜之前检查要在其上形成图像的片材的拾取，以及图像形成装置。该方法包括：第一步骤，允许拾取辊从片材保持单元拾取片材并使片材的前缘抵靠抵抗辊; 第二步骤，允许检测机构检测所述纸张是否被拾取辊拾取; 第三步骤，根据检测机构的检测将拾取辊旋转预定量; 驱动所述阻挡辊进给所述片材并驱动用于在所述片材上形成图像的图像形成机构的第四步骤; 以及允许图像形成机构在供纸片材上形成图像的第五步骤。该装置包括用于保持片材的片材保持单元; 拾取辊，用于从片材保持单元拾取片材; 阻挡辊，所述片的前缘抵靠着所述抵抗辊; 图像形成机构，用于在由所述阻挡辊供给的片材上形成图像; 检测机构，用于检测纸张是否被拾取辊拾取; 以及用于旋转拾取辊的控制器，然后根据检测机构的纸张检测输出将拾取辊旋转预定量，然后停止旋转拾取辊，然后旋转阻挡辊。

2. 发明授权

US5158381A Printing media feeding apparatus for printers 失效
标题翻译：用于打印机的打印介质进给装置
公开(公告)号：US5158381A
公开(公告)日：1992-10-27
申请号：US740874
申请日：1991-07-31
申请人： Mitsugu Inomata , Haruhisa Inagaki , Fumio Nakao
发明人： Mitsugu Inomata , Haruhisa Inagaki , Fumio Nakao
IPC分类号： B41J11/48 , B41J13/10
CPC分类号： B41J11/48 , B41J13/106
摘要： A printer includes a printing portion and means for defining a sheet path along which a printing media passes through the printing portion. The sheet path defining means includes a pair of first feed rollers arranged upstream of the printing portion with respect to a normal feed direction of the printing media with the first rollers being adapted to be driven in the normal or a reverse direction. The first rollers further are driven at a predetermined speed with a predetermined speed force at least in a normal direction. A pair of second feed rollers is arranged downstream of the printing portion which are driven only in the normal direction at a feed speed slightly higher than the predetermined feed speed with a feed force slightly smaller than the predetermined feed force. The second rollers further are freely rotatable in the reverse direction.
摘要翻译：打印机包括打印部分和用于限定打印介质穿过打印部分的纸张路径的装置。片材路径限定装置包括一对第一进给辊，其相对于打印介质的正常进给方向布置在打印部分的上游，其中第一辊适于沿正向或反向驱动。第一辊子进一步以至少沿正常方向以预定速度的速度以预定速度被驱动。一对第二进料辊布置在印刷部分的下游，其仅在正常方向上以比预定进给速度略微高于进给速度的进给速度驱动，进给力略小于预定进给力。第二辊子还可以沿相反方向自由旋转。

3. 发明授权

US5156466A Method and apparatus for adjusting the spacing between head and platen in an impact printer or the like 失效
标题翻译：用于调节冲击打印机等中的头部和压板之间的间隔的方法和装置
公开(公告)号：US5156466A
公开(公告)日：1992-10-20
申请号：US599176
申请日：1990-10-17
申请人： Haruhisa Inagaki , Mitsugu Inomata , Fumio Nakao
发明人： Haruhisa Inagaki , Mitsugu Inomata , Fumio Nakao
IPC分类号： B41J25/308
CPC分类号： B41J25/3088
摘要： A printer of the kind having a printing head for printing on a sheet being held against a platen roll by a sheet presser, with both printing head and sheet presser mounted fast to a head carriage which is movable not only in a direction parallel to the axis of the platen roll but also in a direction normal thereto. For adjusting the spacing between the printing head and the platen roll to the thickness of the sheet to be printed upon, a drive motor is coupled to the head carriage via a yieldable clutch. The drive motor is energized first for driving the head carriage toward the platen roll to an extent equal to, or preferably somewhat exceeding, a predetermined stroke of head travel toward and away from the platen roll, in order to positively hold the sheet presser directly against the platen roll, then for driving the head carriage away from the platen roll over said predetermined stroke, then, after the sheet to be printed upon has been introduced between the platen roll and the sheet presser, for driving the head carriage toward the platen roll to an extent equal to or exceeding said predetermined stroke, in order to positively hold the sheet presser against the platen roll via the sheet, and then for driving the head carriage away from the platen roll a variable distance depending upon the thickness of the sheet, in order to provide a required spacing between the printing head and the platen roll.
摘要翻译：一种具有打印头的打印机，用于通过压纸机将纸张压印在压纸卷筒上，打印头和压纸机两者都快速安装在头托架上，头托架不仅可以沿平行于轴线的方向移动并且也沿着与其正交的方向。为了将打印头和压纸卷筒之间的间距调整到待印刷的片材的厚度，驱动电动机通过可屈服离合器联接到头部托架。驱动马达首先通电，用于将头托架朝向压盘卷筒驱动，以等于或优选稍微超过头部朝向和远离压纸卷筒的行程的预定行程的程度，以便将片材压紧件直接抵靠压板辊，然后用于将头托架从所述压纸卷筒上移动超过所述预定行程，然后在被打印的片材已经被引入压纸卷筒和压纸机之间，用于将打印头托架驱动到压纸辊在等于或超过所述预定行程的程度上，以便经由片材将片材压紧机构积极地保持在压板辊上，然后根据纸张的厚度驱动头架从压纸辊离开可变距离，以便在打印头和压纸辊之间提供所需的间隔。

4. 发明授权

US5083880A Printing media feeding apparatus for printers 失效
标题翻译：用于打印机的打印介质进给装置
公开(公告)号：US5083880A
公开(公告)日：1992-01-28
申请号：US554368
申请日：1990-07-19
申请人： Mitsugu Inomata , Haruhisa Inagaki , Fumio Nakao
发明人： Mitsugu Inomata , Haruhisa Inagaki , Fumio Nakao
IPC分类号： B41J11/48 , B41J13/10
CPC分类号： B41J11/48 , B41J13/106
摘要： A printer includes two printing sheet outlets each provided with a stacker mount on which a detachable stacker constituted as a single unit can be mounted. The stacker comprises a cut sheet supporting portion and an eject roller for ejecting cut sheets onto the supporting portion. A driving force is transmitted from a single drive source to the respective stacker mounts so that, when the stacker is selectively mounted on one of the mounts, the eject roller of the stacker can be operatively connected to the drive source and can be driven.
摘要翻译：打印机包括两个印刷纸出口，每个印刷纸出口均设置有堆叠器安装件，可安装构成单个单元的可拆卸堆垛机。堆垛机包括切割片支撑部分和用于将切割的片材排放到支撑部分上的排出辊。驱动力从单个驱动源传递到相应的堆垛架，使得当堆垛机选择性地安装在其中一个安装件上时，堆垛机的排出辊可以可操作地连接到驱动源并且可以被驱动。

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