Title:
LED PRINTING HEAD
Document Type and Number:
Japanese Patent JPH05318824
Kind Code:
A
Abstract:
PURPOSE: To improve printing quality by reducing the effect of light leakage from an LED array.
CONSTITUTION: An exposing hole 21, in which the main surface of a printed board 1 as a lower layer is exposed, is formed to a conductor pattern 2a formed onto the main surface of a printed board 1. The exposing hole 21 is formed at the corner section of a base, on which the light-emitting sections 5a of LED elements 5 are cossed with nearby side faces, in the LED array 3 when the LED array 3 is placed onto the conductor pattern 2a. Accordingly, reflection is inhibited by the main surface of the printed board exposed from the exposing hole.
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Inventors:
AIZAWA KOICHIRO
Application Number:
JP12500292A
Publication Date:
December 03, 1993
Filing Date:
May 18, 1992
Export Citation:
Assignee:
OKI ELECTRIC IND CO LTD
International Classes:
B41J2/44; B41J2/45; B41J2/455; H01L33/30; H01L33/60; (IPC1-7): B41J2/44; B41J2/45; B41J2/455; H01L33/00
Attorney, Agent or Firm:
Toshiaki Suzuki