公开(公告)号：US5399039A

公开(公告)日：1995-03-21

申请号：US56229

申请日：1993-04-30

申请人： Robert R. Giles ,  Abdolreza Movaghar ,  Damon W. Broder ,  Stephen B. Witte ,  Brent W. Richtsmeier ,  Todd R. Medin

发明人： Robert R. Giles ,  Abdolreza Movaghar ,  Damon W. Broder ,  Stephen B. Witte ,  Brent W. Richtsmeier ,  Todd R. Medin

IPC分类号： B41J2/01 ,  B41J11/00 ,  B41J13/02 ,  B41J13/10 ,  B41F23/04

CPC分类号： B41J13/10 ,  B41J11/002

摘要： An ink-jet printer having improved print quality and full color printing capability on plain paper media. To accommodate placement of both input and output media trays on the same side of the printer housing for operator convenience, a paper path with a direction reversal is employed. A low cost radiant print heater with a reflector cavity heats the medium at the print area to increase the ink carrier evaporation rate. The printer provides improved medium control at the print area through an arrangement of small diameter drive and tension shafts and shortened handoff distance between the rollers. The heater is disposed between the drive and tension rollers. To minimize the handoff distance, portions of the drive rollers extend into the reflector cavity. The resulting media advancement mechanism has low inertia, with improved media positioning accuracy.

摘要翻译： 一种在普通纸介质上具有改进的打印质量和全色打印能力的喷墨打印机。 为了方便操作，为了适应输入和输出介质托盘放置在打印机外壳的同一侧，采用具有方向反转的纸张通道。 具有反射器空腔的低成本辐射打印加热器在打印区域加热介质以增加墨载体蒸发速率。 该打印机通过小直径驱动和张力轴的布置提供了在打印区域的改进的介质控制，并缩短了辊之间的切换距离。 加热器设置在驱动和张紧辊之间。 为了最小化切换距离，驱动辊的一部分延伸到反射器腔中。 所得到的介质提升机构具有低惯性，具有改进的介质定位精度。

公开(公告)号：US06831759B1

公开(公告)日：2004-12-14

申请号：US09527143

申请日：2000-03-16

申请人： Stephen B. Witte ,  Glenn Gaarder

发明人： Stephen B. Witte ,  Glenn Gaarder

IPC分类号： H04N104

CPC分类号： H04N1/0285 ,  H04N1/0287 ,  H04N1/0301 ,  H04N1/0305 ,  H04N1/0318 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/03112 ,  H04N2201/03116 ,  H04N2201/03129 ,  H04N2201/03145 ,  H04N2201/0404

摘要： An optical scanner system wherein the central region of the light source is selectively covered up by a mechanically actuated shutter during a transparency scanning mode. By occluding the central portion of the light source, problems with flare and degraded image quality are eliminated. The shutter is actuated to its two positions (normal reflective mode position, transparency mode position) by pins, protrusions, or the scanner walls in the scan module path. When the scan module is driven to the extremes of its travel the shutter is either driven open or closed. A bracket structure is provided to hold the transparent media and a covering light reflective tent, and can include the pin or pins that can protrude into the scanner module path and thus actuate the shutter only when the structure is mounted on to the scanner by the user. The bracket structure can include a lower member that rests directly on the platen glass to align filmstrips, slides, and other transparent media. The tent structure is hinged relative to the lower structure which allows it to be opened and closed to enable insertion of transparent media. When the tent structure is closed it acts as the reflective light path to allow light from the primary light source to be reflected up, over, and down through the transparent media, and into the optical light path leading to the optical sensor.

摘要翻译： 一种光学扫描仪系统，其中在透明度扫描模式期间，光源的中心区域由机械致动的快门选择性地被遮盖。 通过遮挡光源的中心部分，消除了耀斑和降低的图像质量的问题。 快门通过扫描模块路径中的销，突起或扫描仪壁被致动到其两个位置（正常反射模式位置，透明度模式位置）。 当扫描模块被驱动到其行程的极限时，快门被驱动打开或关闭。 提供支架结构以保持透明介质和覆盖光反射帐篷，并且可以包括可以突出到扫描仪模块路径中的销或销，并且因此仅当结构被用户安装到扫描仪上时才启动快门 。 托架结构可以包括一个下部构件，该下部构件直接放置在压板玻璃上以对准薄膜带，滑块和其它透明介质。 帐篷结构相对于下部结构铰接，允许其打开和关闭以能够插入透明介质。 当帐篷结构关闭时，它用作反射光路，以允许来自主光源的光被透明透明介质反射，上下穿过，并进入通向光学传感器的光学光路中。

公开(公告)号：US06650445B1

公开(公告)日：2003-11-18

申请号：US09399203

申请日：1999-09-17

申请人： Stephen B. Witte ,  Mark A. Flores

发明人： Stephen B. Witte ,  Mark A. Flores

IPC分类号： H04N146

CPC分类号： H04N1/401

摘要： An optical scanner includes a CCD and a light monitor window (“LMW”) and a black region adjacent the LMW. The LMW is imaged to provide feedback signals for Red, Green and Blue channels of the CCD. The black region is imaged to remove flare from the feedback signals. The flare-corrected feedback signals may be supplied to gain compensation controls.

摘要翻译： 光学扫描器包括CCD和光监视器窗口（“LMW”）以及与LMW相邻的黑色区域。 成像LMW以为CCD的红色，绿色和蓝色通道提供反馈信号。 成像黑色区域以从反馈信号中去除耀斑。 可以提供闪光校正的反馈信号以获得补偿控制。

公开(公告)号：US5456543A

公开(公告)日：1995-10-10

申请号：US236928

申请日：1994-05-02

申请人： Stephen B. Witte ,  Damon W. Broder

发明人： Stephen B. Witte ,  Damon W. Broder

IPC分类号： B41J11/00 ,  B41J13/10 ,  B41J19/78

CPC分类号： B41J13/10 ,  B41J11/002 ,  Y10T74/19623

摘要： A backlash control system for a printer medium drive system having a motor-driven gear train for driving medium-engaging rollers. Pinion gears mounted on the motor drive shaft mesh with a main gear and a tension gear, mounted in turn on a main drive and a tension roller. An anti-backlash spring device includes pinch fingers which exert a pinch force on the main and tension gears. The pinch fingers are mounted at ends of a horizontal spring beam secured at an intermediate pivot point. As the motor turns to drive the print medium forward, the pinch force results in bowing of the horizontal beam, tending to exert a restoring force on the main and tension gears. As the motor direction is reversed and stopped, the restoring force results in the main and tension gears being pulled backwards to keep the gear teeth meshed tightly to the pinion gear teeth. The pinch fingers also exert a thrust load axially against the main drive and tension gears.

摘要翻译： 一种用于打印介质驱动系统的间隙控制系统，具有用于驱动介质接合辊的马达驱动齿轮系。 安装在电机驱动轴上的小齿轮与主齿轮和张力齿轮啮合，依次安装在主驱动装置和张紧辊上。 防反弹弹簧装置包括在主和张紧齿轮上施加夹紧力的夹紧指状物。 夹紧手指安装在固定在中间枢转点处的水平弹簧梁的端部。 当电动机转动以向前驱动打印介质时，夹紧力导致水平梁的弯曲，倾向于对主和张紧齿轮施加恢复力。 当电动机方向反转和停止时，恢复力导致主和拉力齿轮被向后拉，以保持齿轮齿紧紧地啮合到小齿轮齿上。 夹紧指也可以轴向地抵靠主驱动装置和张紧齿轮施加推力载荷。

公开(公告)号：US5907742A

公开(公告)日：1999-05-25

申请号：US815289

申请日：1997-03-09

申请人： Craig T. Johnson ,  Gary W. Gragg ,  Jeffrey A. Sunamoto ,  Stephen B. Witte

发明人： Craig T. Johnson ,  Gary W. Gragg ,  Jeffrey A. Sunamoto ,  Stephen B. Witte

IPC分类号： G03G15/043 ,  H04N1/40 ,  H05B41/282 ,  H05B41/38

CPC分类号： G03G15/043 ,  H04N1/40056 ,  H05B41/282 ,  H05B41/386

摘要： A lamp control scheme for rapid warmup of a cold cathode fluorescent lamp, to minimize the warmup time while maintaining long lamp service light. The lamp is over-driven with high current for up to a predetermined time limit to accelerate mercury vaporization. The drive current is then reduced to a normal level. The scanner light output is monitored by a sensor circuit, and the system waits until the light output exceeds a minimum output and the light profile is sufficiently stable. The scanner is then calibrated to a white reference, and the closed loop control of the signal level is activated. The scan or copy process is now performed, and the light level control is deactivated as needed. Thereafter, between uses the lower lamp current is 40% of normal level to keep the lamp warm while extending the life of the product. If the product has not been used in a long time, the lamp is turned off.

摘要翻译： 一种用于快速预热冷阴极荧光灯的灯控制方案，以便在保持长灯服务灯的同时最小化预热时间。 该灯被高电流过驱动达预定的时间限制以加速汞汽化。 然后将驱动电流降低到正常水平。 扫描仪光输出由传感器电路监控，并且系统等待直到光输出超过最小输出，并且光轮廓足够稳定。 然后将扫描仪校准为白色参考，并激活信号电平的闭环控制。 现在执行扫描或复制过程，并根据需要禁用光级控制。 此后，在使用之间，较低的灯电流是正常水平的40％，以保持灯温暖，同时延长产品的使用寿命。 如果产品长时间未使用，灯泡将关闭。

公开(公告)号：US07068402B2

公开(公告)日：2006-06-27

申请号：US10615565

申请日：2003-07-08

申请人： Stephen B. Witte ,  Mark A. Flores

发明人： Stephen B. Witte ,  Mark A. Flores

IPC分类号： H04N1/46 ,  H04N1/04 ,  H04N1/00

CPC分类号： H04N1/401

摘要： An optical scanner includes a CCD and a light monitor window (“LMW”) and a black region adjacent the LMW. The LMW is imaged to provide feedback signals for Red, Green and Blue channels of the CCD. The black region is imaged to remove flare from the feedback signals. The flare-corrected feedback signals may be supplied to gain compensation controls.

公开(公告)号：US06624914B1

公开(公告)日：2003-09-23

申请号：US09522967

申请日：2000-03-10

申请人： Steven W. Hendrix ,  Stephen B. Witte

发明人： Steven W. Hendrix ,  Stephen B. Witte

IPC分类号： H04N104

CPC分类号： G02B26/10

摘要： A scanner system and method are described, wherein two lenses are mounted on a slider positioned in the optical light path between two moving mirrors and the optical sensor. Each mirror is mounted on a moving carriage. The slider is bistable in two alignment positions, one for each lens. The slider is moved by the motion of one of the carriages. As the carriage moves toward the lens slider, a linkage causes the slider to move from the position it is currently in to the other position. This system allows the slider to be shuttled from one position to the other, thereby changing resolutions, using energy provided by the same motor that moves the mirrors.

摘要翻译： 描述了一种扫描仪系统和方法，其中两个透镜安装在位于两个移动反射镜和光学传感器之间的光学光路中的滑块上。 每个镜子都安装在一个可移动的支架上。 滑块在两个对准位置是双稳态的，每个镜头一个。 滑块通过其中一个滑架的运动而移动。 当滑架朝着镜头滑块移动时，连杆使得滑块从其当前位置移动到另一位置。 该系统允许滑块从一个位置往另一个位置移动，从而使用由移动反射镜的相同电动机提供的能量来改变分辨率。

公开(公告)号：US5420621A

公开(公告)日：1995-05-30

申请号：US56036

申请日：1993-04-30

申请人： Brent W. Richtsmeier ,  Todd L. Russell ,  Stephen B. Witte

发明人： Brent W. Richtsmeier ,  Todd L. Russell ,  Stephen B. Witte

IPC分类号： B41J13/03 ,  B41J2/00

CPC分类号： B41J13/03

摘要： A pinch wheel is mounted to be spring-loaded against an exit drive roller in close proximity to a print zone, with the pinch wheel formed by a dual starwheel having two spaced-apart sets of teeth for contacting a newly-printed media surface without puncturing or damaging the media.

摘要翻译： 夹紧轮被安装成靠近打印区域的出口驱动辊弹簧加载，夹紧轮由具有两个间隔开的齿组成的双星形轮形成，用于接触新打印的介质表面而不刺穿 或损坏媒体。