Patent ID: 7832724
Filing Date: 2010-11-16
Classification: H04N

Abstract:
1. A duplex sheet feeding system, comprising: a feed roller for conveying a recording medium from a feeding path into a scanning zone and being scanned by a scanning module; a conveying roller for conveying the recording medium out of the scanning zone and into an ejecting path, wherein the ejecting path has a first end and a second end opposite to the first end, the first end of the ejecting path is connected to the feeding path; a returning roller for returning the recording medium conveyed out of the scanning zone back into the scanning zone through a returning path, wherein the returning path has a first end and a second end opposite to the first end, the first end of the returning path is connected to the feeding path; a paper weight configured at the returning path and the ejecting path; and a sheet ejection mechanism connected with the second end of the returning path and the second end of the ejecting path, the returning path and the ejecting path are located at the same side to the sheet ejection mechanism, the recording medium entering the sheet ejection mechanism through the ejecting path, the sheet ejection mechanism comprising: wherein the recording medium is clamped and conveyed outward between the pinch member and the arc portion when the sheet ejection roller rotates along the first direction, and the recording medium is clamped and conveyed between the pinch member and the arc portion for being conveyed back into the returning path for being scanned when the sheet ejection roller rotates along the second direction, and a gap is formed between the plane portion and the pinch member for allowing the recording medium to pass.