Optical printer head and image forming apparatus equipped with the same
AssigneeKYOCERA Corporation
InventorYuu Itou
Life of this patent
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Abstract
The invention relates to an optical printer head 12 provided with one or a plurality of light emitting element array units 3. The light emitting element array unit 3 is provided with a circuit board 30, a base member 33 supporting the circuit board 30, and a plurality of light emitting elements mounted onto the base member 33 and arranged in a row in main scanning directions M1 and M2. The base member 33 has a lower hygroscopic rate than the circuit board 30. The plurality of light emitting element array units 3 are arranged along the main scanning directions M1 and M2, for example, so that end portions 34 in adjacent light emitting element array units 3 are overlapped with each other in vertical-scanning directions S1 and S2.
Claims14
An optical printer head comprising one or a plurality of light emitting element array units, each of which comprises
- a circuit board,
- a base member having a lower hygroscopic rate than the circuit board and supporting the circuit board, and
- a plurality of light emitting element disposed on the base member and arranged along a main scanning direction on the base member, wherein the circuit board has a connection pad electrically connected to the plurality of light emitting elements;
- and
- a surface of the connection pad on the circuit board is in substantially the same plane as a surface of the base member, on which the plurality of light emitting elements is disposed.
Dependencies are inferred from the claim text.