The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 1977
Filed:
Dec. 18, 1975
Nippon Telegraph and Telephone Public Corporation, Tokyo, JA;
Sharp Kabushiki Kaisha, Osaka, JA;
Abstract
In an ink jet system printer of the charge amplitude controlling type, wherein a printing head is transported in a horizontal direction and vertical deflection is achieved by a pair of high voltage deflection plates, it is required to transport the printing head at a fixed velocity in the printing process. More particularly, in order to execute intermittent printing by repetition of the transporting and stopping of the printing head in response to intermittent input signals, it is necessary that printing is restricted during the time required for increasing the velocity of the printing head to a desired level and then permitted after that time. The present invention provides a system wherein the generation of printing start signals is delayed by a predetermined period following the application of input signals, and also a system wherein printing start signals are generated when the actual velocity of the head has been sensed as reaching the desired velocity.