A sheet reverse conveyance device has a control part which controls so
that the forward conveyance rotation member pair is set into a contact
condition and the reverse conveyance rotation member pair is set into a
detachment condition until a rear edge of the sheet which has entered the
reverse conveyance path and is conveyed by the forward conveyance
rotation member pair passes through an entrance of the discharge path,
and in order to convey the sheet to the discharge path by the reverse
conveyance rotation member pair, the forward conveyance rotation member
pair is set into the detachment condition and the reverse conveyance
rotation member pair is set into the contact condition after the rear
edge of the sheet conveyed by the forward conveyance rotation member pair
passed through the entrance of the discharge path.