Patent ID: 7385738
Filing Date: 2008-06-10
Classification: H04N

Abstract:
1. An apparatus, comprising: a light source that applies light to an original to read an image on the original; a photoelectric conversion section that converts reflected light from the original into an image signal of the image; a connector to be electrically connected, the connector including a plurality of terminals placed side by side in a predetermined direction, the plurality of terminals including an image signal output terminal section that outputs the image signal and a power terminal section that inputs electric power for lighting the light source; an output signal acquisition unit configured to acquire a difference between a voltage value of a white-level image signal and a voltage value of a black-level image signal, each separately output from the photoelectric conversion section via the image signal output terminal section; and a poor connection detection unit configured to detect presence or absence of poor connection of the connector based on the difference acquired by the output signal acquisition unit, wherein the power terminal section is placed in the proximity of one end of the plurality of terminals in the predetermined direction thereof, the image signal output terminal section is placed in the proximity of an opposite end in the predetermined direction thereof, the output signal acquisition unit comprises: the poor connection detection unit compares a difference between the first output signal voltage difference acquired by the first output signal acquisition unit and the second output signal voltage difference acquired by the second output signal acquisition unit with a predetermined value, to detect the presence or absence of poor connection of the connector.