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公开(公告)号：US5518324A
公开(公告)日：1996-05-21
申请号：US011460
申请日：1993-01-29
申请人： Michael C. Campbell , Mohsen Marefat , Randall D. Mayo , Jeffrey H. Paterra , Tuyen V. Pham , Donald K. Rex , Kevin D. Schoedinger
发明人： Michael C. Campbell , Mohsen Marefat , Randall D. Mayo , Jeffrey H. Paterra , Tuyen V. Pham , Donald K. Rex , Kevin D. Schoedinger
IPC分类号： B41J25/308 , B41J11/20
CPC分类号： B41J25/3088 , B41J25/308
摘要： A system for automatically adjusting the print head gap of an impact printer, particularly for paper stocks of differing thicknesses and multi-layer forms, provides for measurement of an absolute distance between an undeflected platen position and a home position of the print head. Paper stock thickness is measured by measuring the distance to the home position from a position of the print head when a predetermined force is exerted by the print head against the platen. Since a similar measurement is made when paper stock is not present in the printer and using the same force against the platen, platen flexure is removed as a source of error and a standardized force is available for compression of the paper stock during measurement. Improved accuracy is achieved at high speed while avoiding the use of position encoder/decoder arrangements. A wider range of manufacturing variations in printer geometry and rigidity can be accommodated with uniformly improved print quality.
摘要翻译： 一种用于自动调节冲击式打印机的打印头间隙的系统，特别是对于不同厚度和多层形式的纸料，可提供测量打印头的未偏转的压板位置和原始位置之间的绝对距离。 当打印头对着压板施加预定的力时，通过从打印头的位置测量到原始位置的距离来测量纸料厚度。 由于当打印机中不存在纸张并且使用与压盘相同的力进行类似的测量时，作为误差源移除压板弯曲，并且在测量期间可以使用标准化的压力来压缩纸张。 提高了准确度，同时避免使用位置编码器/解码器装置。 打印机几何形状和刚度的制造变化范围更广，可以均匀提高打印质量。
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公开(公告)号：US5015108A
公开(公告)日：1991-05-14
申请号：US535638
申请日：1990-06-11
申请人： Jeffrey H. Paterra , Donald K. Rex
发明人： Jeffrey H. Paterra , Donald K. Rex
摘要： Apparatus for selectively reinking an endless ribbon in that portion of the ribbon known as the ribbon print track. The ribbon print track is created in an endless ribbon by the repeated striking of the ribbon by a print mechanism thereby deforming the ribbon and depleting it of ink. Reinking the entire ribbon uses more ink than is necessary. Reinking only the print track extends the life of the ribbon by selectively using the available supply of ink. The apparatus achieves this result by use of an ink reservoir which supplies ink to a drive roller, which through a rotating pinching movement in cooperation with another roller, advances a ribbon into a stuffing cavity of an ink cartridge. The ink reservoir is rotatably mounted and formed to apply ink only to that portion of the drive roller which corresponds to the print track of the ribbon. The drive roller may be a composite of more than one roller in a stack of rollers and a single roller in the stack of rollers may receive the ink from the ink reservoir and transfer it to the ribbon print track.
摘要翻译： 用于选择性地将已知为色带打印轨道的色带的该部分中的环形带退回的装置。 色带打印轨迹是通过打印机构反复敲击色带而创建在环形带中，从而使色带变形并消耗墨水。 整个色带的反光使用比所需要的更多的墨水。 仅打印打印轨迹可以通过选择性地使用可用的墨水来延长色带的使用寿命。 该装置通过使用向驱动辊供应墨水的墨水储存器来实现该结果，该驱动辊通过与另一个辊协作的旋转夹持运动将色带推进到墨盒的填充腔中。 墨水容器可旋转地安装和形成，以仅将油墨施加到对应于色带的打印轨道的驱动辊的那部分。 驱动辊可以是多个辊子中的多于一个辊的复合材料，并且辊子叠层中的单个辊子可以从油墨储存器接收油墨并将其传送到色带打印轨道。
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公开(公告)号：US5005996A
公开(公告)日：1991-04-09
申请号：US408017
申请日：1989-09-15
申请人： Jeffrey H. Paterra , Donald K. Rex
发明人： Jeffrey H. Paterra , Donald K. Rex
摘要： A ribbon cartridge for an endless ribbon used in high speed printers, with increased reliability due to fewer parts, is constructed from a molded casing which is rectangular in shape into which are formed a post on which a cylindrical porous ink reservoir is mounted, a ribbon protector which isolates the ink reservoir from the ribbon in the stuffer box portion of the cartridge, and a forked bracket for mounting a shaft on which gears are mounted. A combination gear for driving a ribbon into the stuffer box and for re-inking the ribbon is mounted on a post and then rotatably mounted on the bracket formed into the housing and is inked by contact with the ink reservoir. An idler gear is rotatably mounted on a bracket which is pivoted from a socket molded into the socket wall and is spring biased into contact with the drive and transfer gear, which is turned by its extended shaft advance and ink the ribbon. As a result a simplified re-inking arrangement is achieved with the minimum of components. Also, by re-inking a central drive and transfer gear, only the print track of a ribbon is reinked thereby extending the re-inking life by conserving ink.
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公开(公告)号：US4671686A
公开(公告)日：1987-06-09
申请号：US807519
申请日：1985-12-11
IPC分类号： B65H5/06 , B41J11/00 , B41J11/26 , B41J11/30 , B41J11/48 , B41J13/00 , B41J13/10 , B41J15/00 , B41J15/06 , B41J29/00 , B65H20/20
CPC分类号： B41J13/103 , B41J11/30 , B41J13/10 , B41J15/06
摘要： The present printer is adapted to be easily equipped with removable and interchangeable paper feed modules of several different types. Each of the paper feed modules is specifically adapted to feed a particular type of paper through the printer and each is easily replaceable by the purchaser of the printer to be used for feeding a specific type of paper therethrough. The printer is provided with a main frame including a pair of side support members and an elongate platen extends between the side support members and is fixed at opposite ends thereto. Three different types of removable and interchangeable paper feed modules are illustrated in the present application and each includes a pair of elongated end plates with a paper moving mechanism supported intermediate the elongated end plates. The end plates are each provided with a pivoted mounting member adapted to engage a guide slot in the main frame side support members and a mounting notch is provided in the midportion of each of the end plates to swing into clamping engagement with the platen when the elongated end plates are pivoted about the pivotal axis of the mounting members so that the removable paper feed module may be inserted into the working region of the printer and on the side of the platen opposite the printhead and pivoted toward the printhead to bring the clamping notch into clamping engagement with the platen.
摘要翻译： 本打印机适于容易地装备有几种不同类型的可拆卸和可互换的供纸模块。 每个供纸模块特别适于通过打印机供给特定类型的纸张，并且每个纸张供应模块可以容易地由打印机的购买者替换以用于通过其输送特定类型的纸张。 打印机设置有包括一对侧支撑构件的主框架，并且在侧支撑构件之间延伸的细长压板在其相对端固定。 在本申请中示出了三种不同类型的可移动和可互换的供纸模块，并且每种包括一对细长端板，其具有支撑在细长端板之间的纸移动机构。 端板各自设置有枢转的安装构件，该枢转安装构件适于接合主框架侧支撑构件中的引导槽，并且在每个端板的中间部分设置有安装凹口，以便当拉伸 端板围绕安装构件的枢转轴线枢转，使得可移动的进纸模块可以插入到打印机的工作区域中，并且在压板的与打印头相对的侧面上并且朝向打印头枢转以使夹紧槽口进入 与压板夹紧接合。
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公开(公告)号：US4285604A
公开(公告)日：1981-08-25
申请号：US86568
申请日：1979-10-19
申请人： Donald K. Rex
发明人： Donald K. Rex
CPC分类号： B41J35/26
摘要： A user replaceable printer ribbon shield of simple design is provided for use in high speed matrix printers utilizing continuous forms. The shield is detachably mounted. During printing, the shield prevents outfolds in the forms from catching on the ribbon and prevents ribbon ink from migrating to the forms. It moves with the platen slightly away from the matrix print head when the machine is idle for at least a preset period of time. This causes the ribbon to move away from the ends of the print wires in the matrix print head to keep print wire lubricatng oil from migrating to the ribbon.
摘要翻译： 提供简单设计的用户可更换打印机带状屏蔽，用于使用连续形式的高速矩阵打印机。 屏蔽可拆卸地安装。 在打印过程中，防护罩可以防止色带中出现的褶皱变形，从而防止色带墨水转移到表格上。 当机器空闲至少预设一段时间时，它随着压板稍微离开矩阵打印头而移动。 这使得色带从矩阵打印头中的打印线的端部移开，以保持打印线润滑油不会移动到色带。
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公开(公告)号：US4643601A
公开(公告)日：1987-02-17
申请号：US655496
申请日：1984-09-28
申请人： Dennis P. Nash , Donald K. Rex , Ludwig R. Siegl , Wendy Wussow
发明人： Dennis P. Nash , Donald K. Rex , Ludwig R. Siegl , Wendy Wussow
CPC分类号： B41J35/06
摘要： A ribbon positioning mechanism comprises a ribbon cartridge, a nosepiece, a stepper motor and flexible ribbon guides connecting the ribbon cartridge to the nosepiece. The nosepiece has two side members connected by a bridge, one of which has a downwardly extending leg. A rack located on the bottom of the leg engages a pinion attached to the stepper motor for lifting the nosepiece into a desired position. A ribbon, having a plurality of parallel color bands, passes from the ribbon cartridge via the flexible ribbon guides and through the nosepiece where it is aligned with a print head. The nosepiece freely slides on vertical guide posts attached to a print head carrier and printer logic controls the stepper motor to align the desired color band with the print head.
摘要翻译： 色带定位机构包括色带盒，鼻梁，步进电机和将色带盒连接到鼻梁的柔性色带引导件。 鼻梁具有通过桥连接的两个侧构件，其中一个具有向下延伸的腿。 位于腿部底部的齿条与安装在步进马达上的小齿轮相接合，用于将喷嘴提升到期望的位置。 具有多个平行色带的色带通过柔性色带引导件从色带盒通过并与打印头对准的喷嘴。 鼻梁可以自由地在连接到打印头支架上的垂直导杆上滑动，打印机逻辑控制步进电机将所需的色带与打印头对准。
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公开(公告)号：US4284363A
公开(公告)日：1981-08-18
申请号：US62259
申请日：1979-07-30
申请人： John M. Choberka , Donald K. Rex
发明人： John M. Choberka , Donald K. Rex
IPC分类号： B41J2/24 , B41J2/22 , B41J2/51 , B41J25/304 , B41J3/12
CPC分类号： B41J25/001 , B41J25/304
摘要： There is disclosed herein a dot matrix tilting print head assembly in which the print head is rotatably mounted in a frame. A solenoid is provided for rotating the print head a controlled distance so that printing occurs between previously printed dots. A pin extending from the print head is positioned into a larger diameter hole in the frame for controlling the distance to be one half of the center-to-center distance between printed dots. This entails maintaining very low tolerances for the mechanically moving parts. In addition, there is provided support members for allowing the removal of the print head alone from the frame means.
摘要翻译： 这里公开了点阵倾斜打印头组件，其中打印头可旋转地安装在框架中。 提供螺线管用于使打印头旋转受控距离，使得在先前打印的点之间进行打印。 从打印头延伸的销定位在框架中的较大直径的孔中，用于将距离控制为打印点之间的中心到中心距离的一半。 这需要保持机械运动部件的非常低的公差。 此外，设置有用于允许单独从框架装置移除打印头的支撑构件。
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公开(公告)号：US3987883A
公开(公告)日：1976-10-26
申请号：US568961
申请日：1975-04-17
申请人： Daniel P. Darwin , Donald K. Rex
发明人： Daniel P. Darwin , Donald K. Rex
CPC分类号： B41J35/04
摘要： An improved mechanism is provided for preventing long-term oil contamination of the print ribbon in a wire matrix printer. In the event that the print ribbon has an excess of oil thereon, it will cause the printed characters to be alternatively too light or too dark thereby reducing the print quality on the document. The print head of the wire matrix printer is operated to an idle or at rest position when printing is not being effected, a camming mechanism retracts the print head away from the platen and document. When this occurs, a stationary member on the printer carriage engages the ribbon and moves it away from contact with the print head in the vicinity of the apertures through which the print wires are guided for printing. With the ribbon moved away from the apertures, the lubricant oils on the print wires do not flow on to the ribbon. The retracting of the print head away from the platen and document by the camming mechanism also permits the easy insertion of new forms into the printer.
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公开(公告)号：US4790467A
公开(公告)日：1988-12-13
申请号：US843746
申请日：1986-03-25
申请人： Donald K. Rex , James P. Ruse
发明人： Donald K. Rex , James P. Ruse
CPC分类号： B41J11/30
摘要： A feed mechanism for moving a web is disclosed. It includes a means for engaging the web that has a plurality of uniformly spaced drive pins for extending through and engaging web perforations. It also includes a means for guiding the web onto the drive pins, such as a door, and it includes a guiding surface that extends below the upper end of the pins. The guiding surface includes a static protrusion that extends below the guiding surface and urges the web and its associated perforation down onto the drive pin in that portion of the tractor where the drive pins are inserted into the web perforations.
摘要翻译： 公开了一种用于移动网的进给机构。 它包括用于接合带子的装置，该装置具有多个均匀间隔的驱动销，用于延伸穿过和接合幅材穿孔。 它还包括用于将幅材引导到诸如门的驱动销上的装置，并且其包括在销的上端下方延伸的引导表面。 引导表面包括在引导表面下方延伸的静止突起，并且将牵引器及其相关联的穿孔向下推动到拖拉机的驱动销的驱动销上，其中驱动销插入到幅材穿孔中。
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公开(公告)号：US4585606A
公开(公告)日：1986-04-29
申请号：US655132
申请日：1984-09-27
CPC分类号： B41J11/30 , Y10T156/1049 , Y10T29/49888
摘要： A forms feed tractor belt includes drive members molded around a thin, flexible band at longitudinal intervals. To make the belt, slots are first punched at longitudinal intervals in at least one side of the flexible band. Drive members are then molded around the band at the slots except for at least one drive memberless interval at each end of the band. The ends of the band are overlapped so that the slots of the drive memberless intervals coincide. Final drive members are then molded around the slots of each pair of coincided drive memberless intervals to complete the endless tractor belt.
摘要翻译： A型进料拖拉机皮带包括以纵向间隔模制在薄的柔性带周围的驱动部件。 为了制造带，首先在柔性带的至少一侧以纵向间隔冲孔。 然后，驱动构件在带外的槽处被模制，除了在带的每个端部处的至少一个驱动器无间隙。 带的端部重叠，使得驱动无间隙的槽重合。 然后将最终驱动构件模制在每对重合驱动无间隙的槽周围，以完成无端拖拉机带。
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