Abstract: A gravity feed roller track and method of manufacturing same are disclosed. The roller track includes a roller tray in which a plurality of rollers are frictionally held. The tray includes a bottom wall from which first and second side supports normally extend. Each of the side supports is substantially z-shaped in vertical cross-section. More specifically, each of the side shapes includes upper and lower vertical sections laterally spaced by an angled extension wall. A plurality of recesses are provided in the extension walls and lower vertical support wall for receipt of hubs of each of the rollers. The tracks allow for smooth rolling and dispensing of product from the roller track, accommodate a range of product sizes, and enable a single size roller to be used with tracks of various width.

Abstract: A sheet feeding device includes: a conveyance path along which a recording sheet is conveyed; a separation roller that separates a recording sheet and conveys it; a registration roller that stops temporarily a recording sheet separated and conveyed by the separation roller and further conveyed along the conveyance path, and conveys the recording sheet again toward the image forming position at the prescribed timing; a detector that is provided in the conveyance path between the separation roller and the registration roller, and detects the recording sheet; a recognizing device that recognizes fluctuation of conveyance timing of the recording sheet based on the results of the detection made by the detector; and a controller that conducts conveyance control for the recording sheet at the upstream side of the registration roller based on the results of the recognition made by the recognizing device.