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. 11, 1989
Filed:
Jul. 14, 1987
Applicant:
Inventors:
Osamu Naruse, Yokohama, JP;
Sadao Kakeno, Fujisawa, JP;
Chuji Ishikawa, Yokohama, JP;
Satoshi Sekimoto, Tokyo, JP;
Masanori Horike, Yokohama, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346 75 ; 3461 / ;
Abstract
A charge and deflection control type ink jet printer in which at least an ink jet head section, a charging section and a deflecting section are configured in a single replaceable module, or unit. The user of the printer may replace the module without the help of a serviceman. The replaceable unit is further provided with an ink ejection adjusting mechanism, a deflection efficiency adjusting device, an a drive efficiency adjusting device.