Structure of scanner having selector switch turned between platform scan mode and automatic document feeder scan mode

摘要

A scanner providing the function of an automatic document feeder type scanner and the function of a platform type scanner which includes a platform housing, a lift cover pivoted to the platform housing, an automatic document feeder pivoted to the lift cover and having a feeding slot covered with a dust cover, and a selector switch turned between a platform scan mode and an automatic document feeder scan mode, wherein when the selector switch is switched to the automatic document feeder scan mode, the lift cover is disengaged from the automatic document feeder and the automatic document feeder is retained to the platform housing, permitting the dust cover to be lifted with the lift cover for feeding paper; when the selector switch is switched to the platform scan mode, the automatic document feeder is engaged with the lift cover and disengaged from the platform housing and can be lifted with the lift cover from the platform housing.