公开(公告)号：US3513774A

公开(公告)日：1970-05-26

申请号：US3513774D

申请日：1968-07-01

Applicant: IBM

Inventor： PAWLETKO JOSEPH P ,  ROSS CHARLES O

IPC: B41J9/46 ,  B41J9/50 ,  G06K15/06 ,  B41J9/30 ,  H01H47/32

CPC classification number: B41J9/50

公开(公告)号：US3866533A

公开(公告)日：1975-02-18

申请号：US31830972

申请日：1972-12-26

Applicant: IBM

Inventor： GILBERT RICHARD L ,  HAMILTON JOHN G ,  HASEGAWA TATSUO ,  ROSS CHARLES O

IPC: B41J7/36 ,  B41J1/20 ,  B41J9/46 ,  B41J9/48 ,  G06K15/06 ,  G06K15/08 ,  B41J7/92

CPC classification number: B41J1/20 ,  B41J9/48

Abstract: Impression control for an impact printer is provided by changing the width of the pulse applied to the print hammers in accordance with the thickness of the forms on which printing is being performed and in accordance with the voltage of the source energizing the print hammers, so as to maintain a constant impact force to provide uniform print density for different forms thicknesses. Misregistration of characters caused by a variation in the rate of movement of the print hammer is compensated for by changing the start time of the pulse energizing the hammer.

Abstract translation: 冲击式打印机的印象控制是通过根据正在进行打印的形式的厚度和根据对打印锤激励的源的电压来改变施加到打印锤的脉冲的宽度来提供的，以便 以保持恒定的冲击力，以为不同的形状厚度提供均匀的印刷密度。 通过改变激励锤的脉冲的开始时间来补偿由打印锤的移动速率的变化引起的字符的对准。

公开(公告)号：CA974569A

公开(公告)日：1975-09-16

申请号：CA167870

申请日：1973-03-30

Applicant: IBM

Inventor： LEE CHEN-HSIUNG ,  LOMINAC HAROLD R ,  ROSS CHARLES O ,  WOLFE BRUCE A

IPC: B41J2/075 ,  G06K15/10 ,  H04N1/23

Abstract: 1403276 Printers INTERNATIONAL BUSINESS MACHINES CORP 12 Feb 1973 [6 April 1972] 6757/73 Heading G4H [Also in Division B6] An ink droplet printer comprises droplet generation means 25, droplet deflection means 32, 33 and droplet charging means in the form of a plurality of charging elements 35 spaced along the path of travel of a droplet, selection of a charging element governing the position at which the droplet strikes a record medium 27. The charging elements 35 are supplied from a constant voltage source V 1 under control of shift registers 40-42 responsive to data input lines 43-45 and single shots 49-51 controlling phase synchronism. A phase maintenance system 47 responsive to a drop formation oscillator 29, drop charging pulses and phase sample pulses, for example one for each line printed, includes a logic box (54, Fig. 3, not shown) and controls the single shots 49-51.

公开(公告)号：CA1053969A

公开(公告)日：1979-05-08

申请号：CA238095

申请日：1975-10-20

Applicant: IBM

Inventor： JENSEN DONALD F ,  ROSENTHAL ARNOLD B ,  ROSS CHARLES O

IPC: B41J1/30 ,  B41J19/18 ,  B41J19/20 ,  B41J19/30 ,  B41J29/38 ,  G06K15/08 ,  H02P8/00 ,  H04L17/16 ,  B41J1/26

Abstract: CARRIER TRAVERSE CONTROL FOR A SERIAL PRINTER In a serial printer a movable type character element such as a ball, disc or the like is rotated to present different type characters to the print position. The carrier for the type element is moved along the print line at a predetermined maximum velocity so long as it is possible to move the type element to the next character in time required to move the carrier from one print position to the next. If the type character set-up time is greater, the carrier is run at a slower speed and is then returned to the predetermined velocity for printing.

公开(公告)号：FR2295844A1

公开(公告)日：1976-07-23

申请号：FR7533278

申请日：1975-10-22

Applicant: IBM

Inventor： JENSEN DONALD F ,  ROSENTHAL ARNOLD B ,  ROSS CHARLES O

IPC: B41J1/30 ,  B41J19/18 ,  B41J19/20 ,  B41J19/30 ,  B41J29/38 ,  G06K15/08 ,  H02P8/00 ,  H04L17/16 ,  B41J7/36

公开(公告)号：CA903098A

公开(公告)日：1972-06-20

申请号：CA903098D

Applicant: IBM

Inventor： PAWLETKO JOSEPH P ,  ROSS CHARLES O

IPC: B41J9/50

公开(公告)号：CA1191389A

公开(公告)日：1985-08-06

申请号：CA426783

申请日：1983-04-27

Applicant: IBM

Inventor： LISICA VINCENT M ,  ROSS CHARLES O

IPC: B41J2/255 ,  B41J2/425 ,  B41J2/505 ,  B41J3/20

Abstract: PRINT ELECTRODE CONTROL CIRCUIT Circuit for selectively enabling energization of printing electrodes in sequence in a print head to achieve a more nearly constant current flow in the electrodes to thereby produce recorded marks of more uniform size. The formation of the electrodes into gated small groups reduces the maximum allowable current and, hence, the electromagnetic radiation. During traversal of the print head along a print line, a lagging electrode group or groups are enabled before the leading groups regardless of travel direction to minimize recording impedance for energized electrodes.

公开(公告)号：CA1172385A

公开(公告)日：1984-08-07

申请号：CA399195

申请日：1982-03-23

Applicant: IBM

Inventor： GALETTO LOUIS V ,  ROSS CHARLES O

IPC: H04N5/76 ,  G06F3/12 ,  G06F3/153 ,  G06K15/00 ,  G06K15/10 ,  G06K15/12 ,  G06K15/22

Abstract: EN980009 VIDEO DISPLAY RECORDING APPARATUS Apparatus for recording a displayed frame of video data by storing the binary data bits from identical segments of each video scan line, thereafter supplying the stored bits of the segments to a traversing matrix print head for recording the bits in those segments, and repeating the process with data bits from a different series of scan line segments. The number of data bits comprising a segment usually corresponds to the number of recording elements in the print head, and the number of print head excursions will vary inversely to the number of data bits in each segment. A resulting recorded video frame thus appears rotated 90.degree. with respect to the original frame orientation.

公开(公告)号：CA1061253A

公开(公告)日：1979-08-28

申请号：CA258912

申请日：1976-08-11

Applicant: IBM

Inventor： ROSS CHARLES O

IPC: G06K15/06 ,  B41J19/18 ,  B41J19/20 ,  G06K15/08 ,  G06K15/10 ,  G06F3/12 ,  B41J3/04 ,  G06F15/10

Abstract: VARIABLE PRINT SPEED CONTROL The carrier for the print head of a printer which is to be used at different operating speeds as a display printer, as a read-only printer, or as a keyboard display printer with asynchronous character rates over a wide range, is operated by a servo motor under the control of a digital/analog converter which continually sums the outputs of an up/down counter which is incremented by incoming data and decremented by the output of a shift register advanced by the incoming data.

公开(公告)号：CA997208A

公开(公告)日：1976-09-21

申请号：CA186054

申请日：1973-11-16

Applicant: IBM

Inventor： GILBERT RICHARD L ,  HAMILTON JOHN G ,  HASEGAWA TATSUO ,  ROSS CHARLES O

IPC: B41J7/36 ,  B41J1/20 ,  B41J9/46 ,  B41J9/48 ,  G06K15/06 ,  G06K15/08

Abstract: Impression control for an impact printer is provided by changing the width of the pulse applied to the print hammers in accordance with the thickness of the forms on which printing is being performed and in accordance with the voltage of the source energizing the print hammers, so as to maintain a constant impact force to provide uniform print density for different forms thicknesses. Misregistration of characters caused by a variation in the rate of movement of the print hammer is compensated for by changing the start time of the pulse energizing the hammer.