US Patent 7874752 Printer

It is intended to provide a printer which can prevent dust from entering and adhering to a printing medium, thereby avoiding entry of the dust to or near a print head, and can improve print quality. A first cover covers a first paper projection port through which paper as the printing medium is projected when the paper is inside a housing. This can prevent the entry of the dust through the first paper projection port to the housing. Furthermore, the first cover swings about a first engagement portion by pressure of a front end of the paper to cover the paper when the paper is projected through the first paper projection port in the forward feeding motion by the feeding device such as a paper feeding roller.