Patent ID: 8368970

Claim:
An image reader, comprising: a reading unit configured to receive light reflected from a document; and an automatic document feeder configured to supply the document to the reading unit, wherein the automatic document feeder has defined therein a document transfer channel along which the document travels within the automatic document feeder, the document transfer channel including a component having a surface that comes in contact with the document and that has a surface tension that is less than or equal to about 40 dyne-per-centimeter, wherein the component of the document transfer channel is made of one or more of a polypropylene (PP)-based resin, a polyethylene (PE) resin, a polyvinyl chloride (PVC) resin, a polyvinyl butyral (PVB)-based resin, a fluoride (F)-based resins, silicon, ethyl vinyl acetate (EVA) and amide, and wherein the F-based resin includes one or more of polytetrafluoroethylene (PTFE), ethylene tetrafluoroethylene (ETFE), perfluoroalkoxy (PFA), polychlorotrifluoroethylene (PCTFE) and polyvinylidene fluoride (PVDF).