Resources Contact Us Home
Sheet feeding device and image forming apparatus therewith

Image Number 7 for United States Patent #6502818.

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.

  Recently Added Patents
Isolation rings for blocking the interface between package components and the respective molding compound
High conductive water-based silver ink
Image surveillance system and method of detecting whether object is left behind or taken away
System and method for providing private demand-driven pricing
Circuit arrangement and method for operating a circuit arrangement
Method and apparatus for managing network traffic
Electronic component mounting machine and operating instruction method for the same
  Randomly Featured Patents
Stacker-reclaimer including counterbalance weight
Recording and reproducing apparatus using basic data
Extruded elongate pasta, and die structure and extruder for forming the same
Radiation-curable liquid resin composition for coating optical fibers
Three-terminal power mosfet switch for use as synchronous rectifier or voltage clamp
Glitch-free clock multiplexer that provides an output clock signal based on edge detection
Process for the dyeing and printing of blended fabrics made of polyester and natural fibre materials with cyano-hydroxy-methyl pyridone, azo disperse dye to reduce staining
Operation-partitioned off-loading of operations in a distributed environment
Method and apparatus for manufacturing low OH overcladding