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:
Dec. 13, 1977
Filed:
Mar. 08, 1976
Applicant:
Inventors:
Syoichi Ito, Ibaraki, JA;
Toshio Tsubaki, Hitachi, JA;
Assignee:
Hitachi, Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346 75 ;
Abstract
An ink jet recording apparatus including a device for charging ink particles to enable detection of disorder in the recording, a device for detecting the thus charged ink particles at a predetermined position and for producing an output in accordance therewith. A device is provided for detecting the output for a predetermined period of time or the number of times an output is provided per a predetermined unit time as an indication of a disorder in the recording. The disorder in the recording or the anticipation of a disorder in the recording is indicated by energizing a light or according to the condition of the recording, stopping the recording operation.