公开(公告)号：CA1098160A

公开(公告)日：1981-03-24

申请号：CA287943

申请日：1977-10-03

Applicant: IBM

Inventor： JENSEN DONALD F ,  TAMULIS JOHN C ,  TOMASKY THOMAS ,  ZABLE JACK L

IPC: B41J2/175 ,  B41J2/12 ,  B41J2/125 ,  G01D15/16 ,  G01D18/00

Abstract: METHOD AND APPARATUS FOR CONTROLLING THE VELOCITY OF INK DROPS IN AN INK JET PRINTER In an ink jet printer, drops are generated at a test frequency which is a harmonic of the drop generation rate for printing. If an error in velocity is detected at the test frequency, a coarse correction velocity is made to bring the correct number of drops within the range of onehalf the wavelength at the nth drop location relative to a drop detector. Drops are then generated at the printing frequency and a fine correction in the velocity is made if a velocity error is detected.

公开(公告)号：CA1124780A

公开(公告)日：1982-06-01

申请号：CA338912

申请日：1979-10-31

Applicant: IBM

Inventor： TAMULIS JOHN C

IPC: B41J9/38 ,  H02K41/00

Abstract: LOW ENERGY MAGNETIC ACTUATOR Magnetic actuator apparatus in which the armature is held in a restrained position on a magnetic core by magnetic flux whose density is cyclically varied in time, and the armature is selectively released by a bucking coil that is energized only when the armature retention flux is at low holding value. The flux source is a permanent magnet that is reciprocated or rotated to vary the armature retaining force. EN978029

公开(公告)号：FR2370521A1

公开(公告)日：1978-06-09

申请号：FR7729868

申请日：1977-09-28

Applicant: IBM

Inventor： JANSEN DONALD F ,  TAMULIS JOHN C ,  TOMASKY THOMAS ,  ZABLE JACK L

IPC: B41J2/175 ,  B41J2/12 ,  B41J2/125 ,  B05B12/08 ,  B41J3/04 ,  B41J27/18 ,  B41J29/38

公开(公告)号：CA1084099A

公开(公告)日：1980-08-19

申请号：CA269172

申请日：1977-01-05

Applicant: IBM

Inventor： JENSEN DONALD F ,  LEE HO C ,  TAMULIS JOHN C

IPC: G01D15/16 ,  B41J3/04

Abstract: MULTI-NOZZLE INK JET PRINTER AND METHOD OF PRINTING A line printer has a print head with plural nozzles arranged in a single row generally transverse to the direction of relative motion of the print head and a print medium. The nozzles are spaced plural dot positions from each other corresponding to a plural dot segment of a single dot matrix character stroke. When the row of nozzles is slanted relative to the direction of motion, drops from the nozzles are used to print stroke segments in plural character strokes simultaneously.

公开(公告)号：DD130812A5

公开(公告)日：1978-05-03

申请号：DD19676676

申请日：1976-12-30

Applicant: IBM

Inventor： JENSEN DONALD F ,  LEE HO C ,  TAMULIS JOHN C

IPC: B41J2/075 ,  B41J2/10 ,  G06K3/00

Abstract: A line printer has a print head with plural nozzles arranged in a single row generally transverse to the direction of relative motion of the print head and a print medium. The nozzles are spaced plural dot positions from each other corresponding to a plural dot segment of a single dot matrix character stroke. When the row of nozzles is slanted relative to the direction of motion, drops from the nozzles are used to print stroke segments in plural character strokes simultaneously.

公开(公告)号：FR2337042A1

公开(公告)日：1977-07-29

申请号：FR7636154

申请日：1976-11-25

Applicant: IBM

Inventor： JENSEN DONALD F ,  LEE HO C ,  TAMULIS JOHN C

IPC: B41J2/075 ,  B41J2/10 ,  B41J3/04 ,  B41J3/10

Abstract: A line printer has a print head with plural nozzles arranged in a single row generally transverse to the direction of relative motion of the print head and a print medium. The nozzles are spaced plural dot positions from each other corresponding to a plural dot segment of a single dot matrix character stroke. When the row of nozzles is slanted relative to the direction of motion, drops from the nozzles are used to print stroke segments in plural character strokes simultaneously.