Patent ID: 6145831
Filing Date: 2000-11-14
Classification: B65H

Abstract:
A sheet feeder for feeding each sheet of recording medium comprising:a feed roller comprising a roller mass having an outer circumferential surface contactable with the sheet of recording medium at a predetermined rotational phase of the roller mass and out of contact from the sheet at a second rotational phase other than the predetermined rotational phase;a separating pad opposing the feed roller and urged, by urging means for supplying an urging force, toward the feed roller for interposing the sheet between the separating pad and feed roller; anda space forming member having a contact portion contacting the sheet and the separating pad for forming a space between the circumferential surface of the roller mass and the sheet and between the circumferential surface and the separating pad against the urging force of the separating pad when the roller mass is in the second rotational phase, the contact portion of the space forming member contacting the sheet, when the roller mass is in the second rotational phase at a same level at which the roller mass is in the predetermined rotational phase.