Patent ID: 8910931

Claim:
A sheet feeding device comprising: a sheet feeding roller configured to come into contact with a sheet and convey the sheet; a placing portion configured to swing toward the sheet feeding roller and on which the sheet is configured to be placed; a moving unit configured to move the placing portion toward the sheet feeding roller; a separation pad to which a leading end of the sheet conveyed by the sheet feeding roller is configured to abut at a contact position; a separation roller disposed at a downstream side than the sheet feeding roller in a sheet conveying direction and configured to nip the sheet conveyed by the sheet feeding roller between the separation pad and the separation roller at a nip position while bringing the sheet into sliding contact with the separation pad; and a separation assistant member provided between the sheet feeding roller and the separation roller and configured to change a distance between the nip position and the contact position according to a basis weight of the sheet conveyed by the sheet feeding roller by coming into contact with the sheet; wherein a width of the separation assistant member is larger than a width of a contact region between the separation roller and the separation pad in a width direction of the sheet.