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:
Mar. 31, 1987
Filed:
Dec. 06, 1985
Yutaka Deguchi, Hyogo, JP;
Yasuyuki Tsuchida, Hyogo, JP;
Sanyo Electric Co., Ltd., , JP;
Abstract
A printer head comprises a plurality of light emitting portions (104) on one side of a rectangular substrate (101), the portions (104) being aligned in parallel with a longitudinal direction of the substrate, and two driver circuit units (112, 113) on the other side of the substrate (101) such that the respective input/output terminals of the units (112, 113) are aligned in a direction orthogonal to the aligning direction of the light emitting portions (104). Each of lead electrodes (106) of the light emitting portions (104) is connected to one of output terminals of first and second driver circuit units (112, 113) from one of first conductive strip lines (108) through a resistor (111), and the input terminals of the first and second driver circuits (112, 113) are connected to external connecting terminals (118). A common electrode (107) for the light emitting portions (104) is connected to a second conductive path (110), the second conductive path (110) branching near the central portion of the substrate (101) so that the path (110) can be connected to the external connection terminals (118) passing through the underside of the first and second driving circuit units (112, 113). Thus structured printer head enables its arrangement in a narrow space of an electrophotographic copying machine, for example.