IMAGE READING DEVICE AND IMAGE FORMING APPARATUS INCLUDING IMAGE READING DEVICE

摘要

An image reading device includes: first and second conductive members provided so as to be opposed to each other at a predetermined position at pivot end side in cover portion in state where the cover portion is in first attitude, the first conductive member being provided in image reading portion and electrically conducted to first housing, the second conductive member being provided in the cover portion and electrically conducted to second housing; magnetic force generating portion and first magnetic force control portion configured to bias the second conductive member in a direction toward a predetermined reference position at which upper surface of the image reading portion and a cover surface are in contact with each other when the document cover is in the first attitude; and a holding portion configured to hold the second conductive member when the document cover is brought from the first attitude into a second attitude.

主权项

1. An image reading device comprising:
an image reading portion including a first housing having electrical conductivity and including, in an upper surface, a document placement surface on which a document sheet is placed, the image reading portion being configured to read an image of the document sheet placed on the document placement surface; a cover portion including a second housing supported by the first housing so as to be pivotable about an end portion of the upper surface of the first housing as a pivot center between a first attitude in which the second housing covers the upper surface and a second attitude in which the second housing is apart from the upper surface, the cover portion including a cover surface contactable with the upper surface in the first attitude; a conduction portion configured to electrically conduct the first housing and the second housing to each other at a predetermined position at the pivot center side in the cover portion; a first conductive member and a second conductive member provided so as to be opposed to each other at a predetermined position at a pivot end side in the cover portion in a state where the cover portion is in the first attitude, the first conductive member being provided in the image reading portion and electrically conducted to the first housing, the second conductive member being provided in the cover portion and electrically conducted to the second housing; a biasing portion configured to bias either one or both of the first conductive member and the second conductive member in a direction toward a predetermined reference position at which the upper surface and the cover surface are in contact with each other when the cover portion is in the first attitude; and a holding portion configured to hold either one or both of the first conductive member and the second conductive member such that the either one or both of the first conductive member and the second conductive member are stored within either one or both of the first housing and the second housing, when the cover portion is brought from the first attitude to the second attitude.