公开(公告)号：WO1982001768A1

公开(公告)日：1982-05-27

申请号：PCT/US1981001510

申请日：1981-11-12

Applicant: NCR CORP

Inventor： NCR CORP ,  WEBER HELMUT ,  REITBERGER PETER H

IPC: G01D18/00

CPC classification number: B41J2/125

Abstract: Ink droplet sensing apparatus for use in an ink jet printer for detecting errors resulting from the omission or misplacement or from the reduced size of a printed dot. In one embodiment the apparatus includes a membrane (14) having a metallic coating thereon which membrane (14) is placed over one side of an electrode member (10) having an uneven surface. Voltage is applied to the electrode member (10) and the metallic coating and ink droplets (20) impinging on the membrane (14) momentarily deflect the membrane and cause a change of capacitance which in turn causes a voltage change at the electrode member (10). The voltage change is coupled through a capacitor (22) and an amplifier (24) to recognition logic for evaluation of the signals.

Abstract translation: 用于喷墨打印机的墨滴检测装置，用于检测由于省略或错位或缩小的打印点尺寸导致的错误。 在一个实施例中，所述装置包括其上具有金属涂层的膜（14），所述膜（14）被放置在具有不平坦表面的电极构件（10）的一侧上。 电压被施加到电极部件（10）上，并且撞击在膜（14）上的金属涂层和墨滴（20）瞬时地偏转膜并导致电容的变化，这又导致电极部件（10）处的电压变化 ）。 电压变化通过电容器（22）和放大器（24）耦合到用于评估信号的识别逻辑。

公开(公告)号：WO1982003123A1

公开(公告)日：1982-09-16

申请号：PCT/US1982000207

申请日：1982-02-19

Applicant: NCR CORP

Inventor： NCR CORP ,  REITBERGER PETER HUBERT ,  WEBER HELMUT ,  GIESSNER FRANK

IPC: G01D15/16

CPC classification number: B41J25/006 ,  B41J19/20

Abstract: Dot matrix printer including at least one print head (40) and driving means (54) for causing movement of the print head in side to side direction relative to a record medium (50) movable past the print head so as to enable the print head to print a line on the record medium. Prior art driving systems used for moving a print head in a side to side manner required considerable energy. In the present invention the driving system includes spring means (44, 46) operably connected with the print head and electrodynamic drive means (54) causing the spring means to oscillate at a frequency corresponding with the natural frequency of the assembly of spring means and print head so as to bring about oscillating motion of the print head in side to side direction. This arrangement reduces significantly the energy required for acceleration and deceleration of the print head.

Abstract translation: 点阵式打印机，其包括至少一个打印头（40）和驱动装置（54），用于使打印头相对于可移动经过打印头的记录介质（50）沿侧向方向移动，从而使打印头 在记录介质上打印一行。 现有技术的驱动系统用于移动打印头的方式需要相当大的能量。 在本发明中，驱动系统包括与打印头和电动驱动装置（54）可操作地连接的弹簧装置（44,46），使得弹簧装置以对应于弹簧装置的组件的固有频率和打印的频率振荡 从而使得打印头在侧向方向上的摆动运动。 这种布置显着降低了打印头的加速和减速所需的能量。

公开(公告)号：WO1982001415A1

公开(公告)日：1982-04-29

申请号：PCT/US1981001367

申请日：1981-10-09

Applicant: NCR CORP

Inventor： NCR CORP ,  WEBER HELMUT ,  REITBERGER PETER

IPC: G01D15/18

CPC classification number: B41J2/125

Abstract: Dot matrix printer, such as an ink jet printer, wherein the dots produced by a printing element (20) are optically sensed and the existence, the position, the size and the condition of each dot are determined. The desired printing signals are produced by a character generator (36) and input in a signal shaping circuit (42) and these signals are compared with the actual signals from the optical sensing means (22, 48, 50) and the drive means (34) for the printing element (20) is altered to correct the printing or an alarm signal (54) is produced when the compared signals do not correspond with each other.

Abstract translation: 点阵式打印机，例如喷墨打印机，其中由打印元件（20）产生的点被光学感测，并且确定每个点的存在，位置，大小和状况。 期望的打印信号由字符发生器（36）产生并输入到信号整形电路（42）中，并将这些信号与来自光学感测装置（22,48,50）和驱动装置（34）的实际信号进行比较 ）改变以校正打印，或者当比较的信号彼此不对应时产生报警信号（54）。

公开(公告)号：EP0065001A4

公开(公告)日：1986-06-11

申请号：EP81903187

申请日：1981-11-12

Applicant: NCR CORP

Inventor： WEBER HELMUT ,  REITBERGER PETER H

IPC: B41J2/07 ,  B41J2/125 ,  G01D18/00

CPC classification number: B41J2/125

Abstract: Ink droplet sensing apparatus for use in an ink jet printer for detecting errors resulting from the omission or misplacement or from the reduced size of a printed dot. In one embodiment the apparatus includes a membrane (14) having a metallic coating thereon which membrane (14) is placed over one side of an electrode member (10) having an uneven surface. Voltage is applied to the electrode member (10) and the metallic coating and ink droplets (20) impinging on the membrane (14) momentarily deflect the membrane and cause a change of capacitance which in turn causes a voltage change at the electrode member (10). The voltage change is coupled through a capacitor (22) and an amplifier (24) to recognition logic for evaluation of the signals.

公开(公告)号：EP0062662A4

公开(公告)日：1986-07-23

申请号：EP81902903

申请日：1981-10-09

Applicant: NCR CORP

Inventor： WEBER HELMUT ,  REITBERGER PETER H

IPC: B41J2/01 ,  B41J2/12 ,  B41J2/125 ,  B41J2/30 ,  B41J2/36 ,  B41J2/49 ,  B41J29/46 ,  G01D15/18 ,  G01D18/00

CPC classification number: B41J2/125

Abstract: Dot matrix printer, such as an ink jet printer, wherein the dots produced by a printing element (20) are optically sensed and the existence, the position, the size and the condition of each dot are determined. The desired printing signals are produced by a character generator (36) and input in a signal shaping circuit (42) and these signals are compared with the actual signals from the optical sensing means (22, 48, 50) and the drive means (34) for the printing element (20) is altered to correct the printing or an alarm signal (54) is produced when the compared signals do not correspond with each other.