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1. 发明授权

US3941051A Printer system 失效
标题翻译：打印机系统
公开(公告)号：US3941051A
公开(公告)日：1976-03-02
申请号：US495830
申请日：1974-08-08
申请人： Gordon B. Barrus , Leo J. Emenaker , Raymond F. Melissa
发明人： Gordon B. Barrus , Leo J. Emenaker , Raymond F. Melissa
IPC分类号： B41J2/245 , B41J9/36 , B41J19/04 , B41J25/00 , G06K15/10 , B41J5/08
CPC分类号： B41J25/006 , B41J2/245 , B41J9/36
摘要： A dot matrix printer system utilizes a reciprocating shuttle having a plurality of hammer elements and externally energized hammer controls mounted with the hammers on the shuttle. Each hammer scans a number of dot printing positions within a dot matrix line, and is energized at a high repetition rate during movement to imprint serially the dot patterns in that line for several successive characters. The paper is then advanced and the next dot matrix line is printed in the reverse direction. The shuttle mechanism forms a part of a dynamically balanced system, being in one example driven in a trapezoidal motion from a cam system that also engages an oppositely moving counterweight system. A highly reliable fast acting hammer bank comprises an array of individual spring hammer elements and associated magnetic actuators, the hammer elements normally being magnetically biased to a retract position by a permanent magnet. The magnetic field is neutralized to permit hammer flight with controlled velocity for imprinting, with hammer return being automatically achieved by the magnetic bias. The system is amenable to generation of a wide variety of dot matrices and arbitrary printing patterns, and provides uniform and well defined characters through a substantial number of copies, but nevertheless operates reliably and at high speed with a low cost mechanism that does not require adjustment.
摘要翻译：点阵式打印机系统利用具有多个锤元件的往复运动梭，以及将锤子安装在穿梭机上的外部激励的锤子控制装置。每个锤子扫描点阵线内的多个点打印位置，并且在移动期间以高重复率激励以将该行中的点图案连续地印刷几个连续的字符。然后纸张前进，并且相反方向打印下一个点阵线。往复运动机构形成动态平衡系统的一部分，在一个示例中，该凸轮系统以一个梯形运动从凸轮系统驱动，凸轮系统也与相对移动的配重系统接合。高度可靠的快速作用的锤组包括单独的弹簧锤元件和相关联的磁致动器的阵列，锤元件通常通过永久磁铁磁力偏置到缩回位置。磁场被中和以允许锤击以受控的速度进行压印，通过磁偏置自动实现锤回位。该系统适合生成各种各样的点阵和任意印刷图案，并且通过大量的拷贝提供均匀且定义良好的字符，但仍然以不需要调整的低成本机制可靠且高速运行。

2. 发明授权

US5354139A Paper feed system having mechanisms engaging opposite edges of print paper above and below print station of printer 失效
标题翻译：送纸系统具有与打印机打印台上下打印纸的相对边缘接合的机构
公开(公告)号：US5354139A
公开(公告)日：1994-10-11
申请号：US335104
申请日：1989-04-07
申请人： Gordon B. Barrus , Leo J. Emenaker
发明人： Gordon B. Barrus , Leo J. Emenaker
IPC分类号： B41J11/30 , B41J11/26
CPC分类号： B41J11/30
摘要： Each of a pair of spaced apart paper feed mechanisms within the paper feed system of a dot matrix line printer has opposite upper and lower portions thereof slightly angled relative to each other and disposed on opposite sides of and close to an elongated print station having a platen at one side thereof on which the paper feed mechanisms are mounted. Guides within the print station direct a length of paper introduced onto one portion of the paper feed mechanism through the print station and onto the other portion. Each paper feed mechanism is locked in a desired position on the platen using a manually operated lever arm arrangement having a mechanical advantage. Phasing or pitch adjustment between the opposite portions of each paper feed mechanism is accomplished by either of two arrangements which vary the position of a pulley engaging an endless belt between the opposite portions in combination with an opposite spring mounted pulley which bears against the inside of and tensions the endless belt. The opposite portions of each paper feed mechanism terminate in ramps which are angled to facilitate withdrawal of pins on the belt from apertures at the edges of the print paper. A lug arrangement at the end of the ramp prevents the toothed underside of the belt from slipping off of the meshing teeth of a pulley about which the belt extends. Slide members resiliently bear against and maintain the edges of the paper in contact with the belts.
摘要翻译：点阵线打印机的供纸系统内的一对间隔开的进纸机构中的每一个具有相对的上部和下部相对于彼此略微成角度并且设置在具有压板的细长打印台的相对侧并且靠近在其上安装有供纸机构的一侧。打印站内的引导件将通过打印站引导到进纸机构的一部分上的纸张的长度引导到另一部分上。使用具有机械优点的手动操作的杠杆臂装置将每个进纸机构锁定在压板上的期望位置。每个进纸机构的相对部分之间的相位调节或俯仰调节通过两个布置中的任一个来完成，这两种布置改变了在相对部分之间接合环形带的滑轮的位置，其结合相对的弹簧安装的滑轮，紧张无尽的腰带。每个送纸机构的相对部分终止于斜面，该斜面成角度以便于将带上的销从打印纸边缘的孔中取出。在斜坡末端处的凸耳装置防止带的齿形下侧从带延伸的滑轮的啮合齿滑落。滑动构件弹性地承受并保持与皮带接触的纸的边缘。

3. 发明授权

US4498793A Printer shuttle drive having castered cam followers 失效
标题翻译：打印机梭子具有转向凸轮从动件
公开(公告)号：US4498793A
公开(公告)日：1985-02-12
申请号：US493818
申请日：1983-05-12
申请人： Gordon B. Barrus , Leo J. Emenaker , Glen R. Radke , Norman E. Farb , Gerold Holzer
发明人： Gordon B. Barrus , Leo J. Emenaker , Glen R. Radke , Norman E. Farb , Gerold Holzer
IPC分类号： B41J2/245 , B41J9/04 , B41J19/04 , B41J25/00 , F16H53/06 , B41J25/28
CPC分类号： B41J25/006 , F16H53/06 , Y10T74/2107
摘要： In a printer in which a shuttle and a counterbalancing mass are driven in opposing reciprocating fashion by a rotating, generally oval-shaped cam, the cam followers which couple the shuttle and the counterbalancing mass to the cam are castered to prevent skewing of the cam followers relative to the cam. Each of the cam followers is disposed between and rotatably mounted on a pair of opposite arms extending outwardly from a generally planar base of a castered yoke assembly, the planar base being pivotally coupled to a supporting member therefor which is either coupled to the shuttle or forms a part of the counterbalancing mass. In a first embodiment the pair of opposite arms extend from the planar base toward the cam so as to dispose the cam follower between the pivotal mount of the yoke assembly and the cam. In a second embodiment the pair of opposite arms extend from the planar base in a direction away from the cam so as to dispose the pivot point of the yoke assembly between the axis of rotation of the cam follower and the cam.
摘要翻译：在其中梭子和平衡质量块通过旋转的大致椭圆形的凸轮以相反的往复方式驱动的打印机中，将梭子和平衡物质联接到凸轮的凸轮从动件被转动以防止凸轮从动件相对于凸轮。每个凸轮随动件设置在可旋转地安装在一对相对的臂上，该对相对臂从脚轮轭组件的大体上平坦的基部向外延伸，该平面基座枢转地联接到支撑构件，支撑构件与梭子或形式一部分平衡的群众。在第一实施例中，一对相对的臂从平面底座朝向凸轮延伸，以将凸轮从动件布置在轭组件的枢轴安装件和凸轮之间。在第二实施例中，一对相对臂从平面基部沿远离凸轮的方向延伸，以将轭组件的枢转点设置在凸轮从动件的转动轴线与凸轮之间。

4. 发明授权

US5133253A Flexure member in cam driven shuttle printer 失效
标题翻译：凸轮驱动手柄打印机中的柔性部件
公开(公告)号：US5133253A
公开(公告)日：1992-07-28
申请号：US423491
申请日：1989-10-12
申请人： Gordon B. Barrus , Leo J. Emenaker , Glen R. Radke
发明人： Gordon B. Barrus , Leo J. Emenaker , Glen R. Radke
IPC分类号： B41J25/00
CPC分类号： B41J25/006
摘要： In a printer in which a shuttle is driven in reciprocating fashion by a rotating cam, a counterbalance assembly disposed on the opposite side of the cam from the shuttle and having a cam follower disposed along a common axis extending through the cam and a cam follower of the shuttle includes a mass in the form of a generally rectangular block mounting the cam follower at one of a pair of opposite ends thereof. Reciprocating movement of the block in response to rotation of the cam is provided by a pair of tapered flex pivots coupled to opposite ends of a base and extending upwardly and coupled to the opposite ends of the block. The end of the block opposite the cam follower receives a spring disposed against a reference surface to bias the cam follower against the cam.

5. 发明授权

US4932797A Resettable locking platen gap adjustment mechanism 失效
标题翻译：可复位的压板间隙调整机构
公开(公告)号：US4932797A
公开(公告)日：1990-06-12
申请号：US208573
申请日：1988-06-17
申请人： Leo J. Emenaker , Gordon B. Barrus
发明人： Leo J. Emenaker , Gordon B. Barrus
IPC分类号： B41J11/20
CPC分类号： B41J11/20
摘要： In a printer in which a plurality of hammers mounted along the length of an elongated hammerbank are selectively fired as the hammerbank is reciprocated relative to an elongated platen to impact a length of ink ribbon against at least one length of print paper supported by the platen to effect printing in dot matrix fashion, the platen being rotatable about an axis of rotation to vary the size of a platen gap between the plurality of hammers and the platen, a mechanism is provided for positively locking the platen in any one of a succession of different rotational positions to provide locking platen gap adjustment. The Positions are identified in order to facilitate resetting of the platen to a desired gap size. The mechanism includes a rotatable knurled thumbknob having mounted thereon a cam having a succession of eccentric or radially varying detents in an outer surface thereof which receives the end of a pivotally mounted, spring-biased lever. Manual rotation of the thumbknob gradually rotates the lever as the end of the lever is positively positioned in each of the succession of detents. An opposite end of the lever engages a platen handle which is coupled to the platen and which is spring-biased to maintain engagement of the handle with the lever.

6. 发明授权

US4687359A Color printer 失效
标题翻译：彩色打印机
公开(公告)号：US4687359A
公开(公告)日：1987-08-18
申请号：US843852
申请日：1986-03-20
申请人： Gordon B. Barrus , Leo J. Emenaker
发明人： Gordon B. Barrus , Leo J. Emenaker
IPC分类号： B41J15/16 , B41J35/06 , B41J35/18 , B41J33/40 , B41J33/34
CPC分类号： B41J15/16 , B41J35/06 , B41J35/18
摘要： In a color printer in which a shuttle assembly containing a plurality of impacting print hammers is reciprocated in bidirectional fashion relative to an opposing platen to impact a print paper against the platen through the different color zones of an ink ribbon to print in color, the different color zones of the ribbon are arranged in a repeating pattern along the length thereof enabling the lightest color to be printed first followed by successively darker colors as the ribbon is advanced bidirectionally between the opposite ends thereof. A pair of barrier zones having a blank ribbon zone therebetween are disposed between each adjacent pair of color zones on the ribbon to prevent ribbon contamination due to bleeding of ink between adjacent color zones when the ribbon is wound on a reel. Ribbon contamination is further prevented by the blank ribbon zones which absorb ink that rubs off onto the ribbon guides. The various different color zones are identified by one or more strips which extend across the width of the ribbon adjacent each color zone and which identify the color therein in bar code fashion. The color printer may be operated in a manner which provides multiple passes of each color zone through the print station between the shuttle assembly and the platen to prolong the life of the ribbon and to enable the printer to quickly advance to the next color zone with a minimum amount of search time. The print paper which is driven bidirectionally by tractor drives above the print station is held in tension by an arrangement below the print station which employs a torque motor having an elastomeric wheel engaging a side of the paper opposite an arrangement of non-ink absorbing rollers.
摘要翻译：在一种彩色打印机中，其中包含多个冲击打印锤的梭子组件相对于相对的台板以双向方式往复运动，以通过墨带的不同颜色区域将打印纸冲击压板以打印颜色，色带的颜色区域沿其长度布置成重复图案，使得最初的颜色可以首先被打印，随着色带在其相对端之间双向前进而连续更暗的颜色。在其间具有空白色带区的一对阻挡区域设置在色带上的每个相邻的一对色区之间，以防止当色带卷绕在卷轴上时由于相邻色区之间的墨水渗漏而引起的色带污染。通过吸收墨水的色带区域进一步防止带状物污染，从而将色带吸附到色带引导件上。各种不同的颜色区域由一个或多个条带识别，该条带在邻近每个颜色区域的带的宽度上延伸，并且以条形码方式识别其中的颜色。彩色打印机可以以提供穿梭组件和压盘之间的打印站的每个颜色区域的多次通过的方式操作，以延长色带的寿命并且使得打印机能够快速前进到下一个彩色区域最少搜索时间。由打印站上方的拖拉机驱动器双向驱动的打印纸由打印站下方的布置保持张紧，印刷站采用具有弹性体轮的扭矩马达，该弹性轮与非油墨吸收辊的布置相对。

7. 发明授权

US4019619A Paper feed sensing mechanism for printer 失效
标题翻译：打印机供纸检测机构
公开(公告)号：US4019619A
公开(公告)日：1977-04-26
申请号：US669245
申请日：1976-03-22
申请人： Leo J. Emenaker
发明人： Leo J. Emenaker
IPC分类号： B41J29/48 , B41J11/14 , B41J29/44
CPC分类号： B41J29/44
摘要： Both the operative position of a movable platen and the presence of paper to be advanced past the platen in a line at a time printer are affirmatively sensed by a single mechanism. A cantilevered spring arm extending from a fixed mount includes a terminal switch sensor at its free end in proximity to the paper. At an intermediate region along its length the spring arm traverses adjacent to but spaced apart from the platen, and an adjustable set screw on the arm is disposed for contact with the platen. When the platen is in the operative position, behind the print hammers, and the printer is loaded with paper, the spring arm biases the actuator into contact with the paper, transferring the switch contact to a given position and thereby indicating that both needed prerequisites for printer operation are satisfied. If the platen is disengaged from its normal position, as for paper loading, the spring arm is concurrently moved away from the paper and the switch actuator freed to transfer the switch to its opposite contact. In the absence of paper the switch actuator is also freed regardless of platen position. The length of travel of the spring arm is substantially greater than that of the switch actuator and the spring arm has a greater spring force than the switch actuator arm, insuring both forceful operation of the switch despite variations in paper thickness, and easy vernier adjustment of the trip point of the switch.
摘要翻译：通过单个机构肯定地检测可移动的压板的操作位置和在时间打印机处被提前经过压板的纸张的存在。从固定安装座延伸的悬臂弹簧臂包括位于纸张附近的自由端的端子开关传感器。沿其长度的中间区域，弹簧臂相对于压板相邻而间隔开，并且臂上的可调定位螺钉设置成与压板接触。当压盘处于操作位置时，打印锤后面并且打印机装满纸，弹簧臂使致动器偏压与纸张接触，将开关触点传送到给定的位置，从而指示了所需的先决条件打印机操作满意。如果压板从其正常位置脱离，对于纸张装载，弹簧臂同时从纸张移开，并且开关致动器释放以将开关转移到其相对的接触件。在不存在纸张的情况下，开关执行器也不受压板位置的影响而释放。弹簧臂的行程长度明显大于开关执行器的行程，弹簧臂的弹簧力比开关执行器臂大，尽管纸张厚度有变化，确保了开关的有力操作，并且容易的游标调节开关的跳闸点。

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