A print media detection apparatus may include a movable scanner bar for scanning media, a feeder tray for supplying the print media, a print media indicator and a controller. The print media indicator may include a first portion to interact with the print media within the feeder tray and a second portion coupled to the first portion to move in response to movement of the first portion. The scanner bar is to sense the second portion of the media indicator. The controller is to determine a characteristic of the print media within the feeder tray based upon sensing of the second portion by the scanner bar.

A reading device includes a carriage configured to move in a sub-scanning direction with reference to an object placed on a contact glass, an optical sensor attached to the carriage, the optical sensor being configured to scan the object placed on the contact glass to obtain an image of the object, and a reference scale used as a reference when a dimension of the object is computed based on the image obtained by the optical sensor. In the reading device, the reference scale extends in a main scanning direction and a sub-scanning direction with reference to the object, and is disposed outside a range of image acquisition in which the optical sensor scans the object to obtain the image of the object as the carriage moves and inside a maximum movement range in which the carriage is movable and the optical sensor obtains the image of the object.

A reading apparatus, having a platen glass, a document cover, a conveyer, a reading sensor, a document supporting member, a pressing plate, and a linkage assembly, is provided. The document cover is movable between an open position and a closed position. The document supporting member is movable between a first position, where the document supporting member faces a reading surface of the reading sensor, and a second position, where the document supporting member is separated from the reading surface. The pressing plate is movable between a third position, where the pressing plate is attached to a lower side of the document cover, and a fourth position, where the pressing plate is removed from the lower side. The linkage assembly moves the document supporting member from the first position to the second position in conjunction with the pressing member moving from the third position to the fourth position.

An illumination device includes a light guide member having a first side in a main scanning direction and a second side in a sub-scanning direction and a plurality of light sources including first light emitters respectively to emit beams of light of a first color and a second light emitter to emit a beam of light of a second color different from the first color toward an inside of the light guide member via a side of the light guide member in the main scanning direction. The first light emitters are positioned in the sub-scanning direction to be symmetrical to each other.

A print media detection apparatus may include a movable scanner bar for scanning media, a feeder tray for supplying the print media, a print media indicator and a controller. The print media indicator may include a first portion to interact with the print media within the feeder tray and a second portion coupled to the first portion to move in response to movement of the first portion. The scanner bar is to sense the second portion of the media indicator. The controller is to determine a characteristic of the print media within the feeder tray based upon sensing of the second portion by the scanner bar.

A support device is applied to support a contact image sensor of an image capture apparatus, which includes a guide rod. The support device includes a slide sleeve and an elastic rod. The slide sleeve, which has a groove, is movably disposed on the guide rod, and a portion of the guide rod is accommodated within the groove. The elastic rod is disposed on the slide sleeve to directly support the contact image sensor. The elastic rod abuts against the contact image sensor, so that the contact image sensor is pushed upwardly, and the contact image sensor is stably kept in the same direction while the slide sleeve is slid on the guide rod. Therefore, the entirety of the support device can achieve the advantages of stably supporting the contact image sensor in balance without using any sliding bracket.

According to one embodiment, an image reading apparatus includes a light emitting unit, a first carriage, a first photoelectric conversion unit, a first lens, and a second carriage. The light emitting unit irradiates a reading object with light. The first carriage includes a first optical member for guiding reflected light from the reading object. The first carriage is movable in a sub-scanning direction along the reading object. The first photoelectric conversion unit receives the reflected light from the reading object guided through the first optical member and outputs an image signal. The first lens is disposed on an optical path of the reflected light between the first optical member and the first photoelectric conversion unit, and images the reflected light from the reading object on the first photoelectric conversion unit. The second carriage is movable in a main scanning direction orthogonal to the sub-scanning direction along the reading object with respect to the first carriage. The second carriage includes a second optical member for guiding the reflected light from the reading object, a second photoelectric conversion unit that receives the reflected light from the reading object guided through the second optical member to output an image signal, and a second lens that is disposed on an optical path of the reflected light between the second optical member and the second photoelectric conversion unit and images the reflected light from the reading object on the second photoelectric conversion unit at a magnification different from the first lens.

An image reading apparatus including: a reading unit configured to read an image of an original in a main scanning direction; a housing configured to accommodate the reading unit; a guide member configured to guide a movement of the reading unit in a sub-scanning direction orthogonal to the main scanning direction; and a restricting member configured to restrict the movement of the reading unit in the sub-scanning direction and a movement of the reading unit in a vertical direction orthogonal to the main scanning direction and the sub-scanning direction.

A reading apparatus, having a platen glass, a document cover, a conveyer, a reading sensor, a document supporting member, a pressing plate, and a linkage assembly, is provided. The document cover is movable between an open position and a closed position. The document supporting member is movable between a first position, where the document supporting member faces a reading surface of the reading sensor, and a second position, where the document supporting member is separated from the reading surface. The pressing plate is movable between a third position, where the pressing plate is attached to a lower side of the document cover, and a fourth position, where the pressing plate is removed from the lower side. The linkage assembly moves the document supporting member from the first position to the second position in conjunction with the pressing member moving from the third position to the fourth position.

An image reading device includes a placement portion in which a placement surface on which an original document is placed is formed, an imaging portion that is arranged above the placement surface and images the original document, a support portion of which a base end portion is attached to an apparatus main body and that supports the imaging portion in a part on a tip end side, an adjustment portion for adjusting a position of the imaging portion with respect to the placement surface, and a covering portion that covers the adjustment portion.