Image reading apparatus
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsYoshinori Osakabe, Hiromi Tanaka
Life of this patent
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Abstract
An image reading apparatus includes: a contact glass provided at an upper surface of a main body of the apparatus to set a manuscript thereon, an image sensor being positioned below the contact glass and having a reading surface on contact glass side for reading an image from the manuscript on the contact glass, a carriage supporting the image sensor accommodated in a sensor container formed to have a recess open to the contact glass side, a rail member slidably supporting the carriage, and a biasing member biasing the image sensor to the contact glass side via a biased portion adjacent to the reading surface of the image sensor. An upper end of the biasing member is positioned below the contact glass and above the lower surface of the image sensor.
Claims18
An image reading apparatus comprising:
- a contact glass having an upper surface and a lower surface which are opposite to each other, the upper surface being configured to support a manuscript thereon;
- an image sensor unit disposed below the contact glass and including:
- an image sensor extending in a first direction and configured to read an image of the manuscript supported on the upper surface of the contact glass, the image sensor having an upper surface facing the lower surface of the contact glass, and a lower surface opposite to the upper surface;
- and
- a retainment portion having a pivot axis which extends in the first direction and about which the image sensor unit is pivotable,
- a carriage supporting the image sensor unit;
- a guide member extending in a second direction perpendicular to the first direction and configured to guide the carriage in the second direction;
- and
- a spring having a first end received by the carriage, and a second end configured to bias the image sensor unit toward the contact glass such that the image sensor unit pivots about the pivot axis of the retainment portion,
- wherein the pivot axis of the retainment portion and at least a portion of the spring are offset from the image sensor in the second direction, and located below the upper surface of the image sensor and above the lower surface of the image sensor.
An image reading apparatus comprising:
- a contact glass having an upper surface and a lower surface which are opposite to each other, the upper surface being configured to support a manuscript thereon;
- an image sensor unit disposed below the contact glass and including:
- an image sensor extending in a first direction and configured to read an image of the manuscript supported on the upper surface of the contact glass, the image sensor having an upper surface facing the lower surface of the contact glass, and a lower surface opposite to the upper surface;
- and
- a retainment portion having a pivot axis which extends in the first direction and about which the image sensor unit is pivotable,
- a carriage supporting the image sensor unit;
- a guide member extending in a second direction intersecting the first direction and configured to guide the carriage in the second direction;
- and
- a spring having a first end received by the carriage, and a second end configured to bias the image sensor unit toward the contact glass such that the image sensor unit pivots about the pivot axis of the retainment portion,
- wherein the pivot axis of the retainment portion and at least a portion of the spring are offset from the image sensor in the second direction, and located below the upper surface of the image sensor and above the lower surface of the image sensor.
Dependencies are inferred from the claim text.