Resources Contact Us Home
Sheet feeding apparatus and two side image forming apparatus therewith

Image Number 5 for United States Patent #5931455.

A sheet feeder for feeding a sheet from a sheet stacker. The sheet feeder includes: a main body of the sheet stacker for holding plural stacked sheets; a movable bottom plate, provided on the bottom portion of the main body and supported bivotally on an axis, for supporting the plural stacked sheets; a lifting lever for lifting the movable bottom plate; and plural pickup rollers, aligned on an axis in a direction perpendicular to a sheet feeding direction, for having a pressure contact with a sheet of the plural stacked sheets on the movable bottom plate, and for feeding the sheet from the main body in the sheet feeding direction. In the sheet feeder, a protruded portion is formed either on the movable bottom plate or on the lifting lever so that a contact portion where the movable bottom plate comes in contact with the lifting lever is of a point contact, and the contact portion is provided at the center of the closest two of the pickup rollers in the direction of their axis.

  Recently Added Patents
Playback device, playback method, and computer program
System and method of verification of analog circuits
Polymeric compositions including their uses and methods of production
Cartridge for separating analyte from mixture, comprising dispensing and receiving chambers and insert
Method and system for migrating object update messages through synchronous data propagation
Virtual image display device and manufacturing method of virtual image display device
Photon density wave based determination of physiological blood parameters
  Randomly Featured Patents
Mode locking of travelling wave ring laser by amplitude modulation
Ink cartridges
Hole cover device and method for covering a hole
Polymer complex having channels and method for chemically modifying inner surfaces of channels of polymer complex
Control method and apparatus for power distribution network
File futures
Office machine including retractable feeder
Image forming apparatus for forming special information upon copying a document image
Methods of positioning an elevating support vessel
Process for making photonic crystal circuits using an electron beam and ultraviolet lithography combination