Patent ID: 7100912
Filing Date: 2006-09-05
Classification: B65H

Abstract:
1. A paper feeding apparatus for a printer, the printer including a paper feeding route, the apparatus comprising: a pivoting support arm supporting a pickup roller which draws out a paper stacked in a cassette and conveys the paper to the printer, wherein the pickup roller is rotated by a driving motor so that the support arm pivots downwards when the pickup roller rotates in a paper feeding direction and pivots upwards when the pickup roller rotates in a direction that is opposite to the paper feeding direction; a conveying roller and an idle roller spaced outwardly from the conveying roller by a predetermined gap to convey the drawn-out paper onto the paper feeding route, the paper being engaged between the conveying roller and the idle roller, the conveying roller including a shaft placed movably in an internal guide having a long slit formed therein; and a feeding roller which feeds the paper conveyed by the conveying roller from the paper feeding route to a printing portion, wherein the conveying roller is positioned above the pickup roller, the paper feeding route is positioned above the conveying roller, the conveying roller is pushed upwards and contacts the paper feeding route by a contact with the pickup roller when the pickup roller pivots upward thereby pushing the conveying roller upward in the internal guide, the conveying roller goes down and is isolated from the paper feeding route due to its weight when the pickup roller pivots downward, the conveying roller is driven when the paper supplied by the pickup roller is conveyed to the feeding roller, and after the paper is conveyed to the feeding roller, the conveying roller is isolated from the paper feeding route.