PURPOSE: To reduce the contact resistance at a connection terminal part and to supply a large current, by forming a power source supply line from a flexible printed circuit board(FPC) and providing a connection terminal obtained by bending FPC and exposing the copper foil on both sides or single side thereof to the terminal part of said line on the side of a power supply apparatus.
CONSTITUTION: A power source supply line 2 is formed from FPC(flexible printed circuit board) and the copper foil 6 at the terminal part on a power supply side of said line 2 is exposed over a predetermined length to form a male terminal. Further, the female terminal freely engageable with said male terminal is formed by fixing a receiving fitting 9 composed of copper connected to a power supply to an insulating substrate 8. A connection terminal 4 is formed from these male and female terminals and the contact resistance at the connection terminal part when the FPC 2 is connected to the insulating substrate 8 through the connection terminal 4 is made low to supply large power to an LED printing head. As a result, the variation in the quantity of light can be reduced and printing quality or image quality can be enhanced.
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HIRAO HIDENORI
SANYO ELECTRIC CO
TOKYO SANYO ELECTRIC CO