Paper feeding apparatus and image forming apparatus having the same

Paper feeding apparatus and image forming apparatus having the same

  • CN 101,134,533 B
  • Filed: 03/19/2007
  • Issued: 05/07/2014
  • Est. Priority Date: 08/31/2006
  • Status: Active Grant
First Claim
Patent Images

1. a feeder, comprising:

  • Pickup unit, is arranged in one end of carton, for picking up, is loaded in the print media of carton and print media is fed in image forming apparatus;

    Lifting unit, is arranged in the other end of carton, for using not contact method that print media is lifted when pickup unit picks up print media,Transfer unit, is delivered to image forming apparatus for the print media that picked unit is picked up, and transfer unit comprises;

    delivery roll, is arranged as and transmits the print media picking up from pickup unit;

    Transmit guide, spaced apart with the periphery of delivery roll, for guiding print media;

    A plurality of idler rollers, are arranged on the inside of transmitting guide, with print media rotating contact,Wherein, before picking up print media, lifting unit and print media separate,Wherein, lifting unit comprises;

    Roller, is filled with DC voltage;

    Minus plate, is arranged on the bottom of carton, and ground connection,Wherein, between described roller and minus plate, produce electric field,Wherein, transfer unit also comprises alignment roller, for being alignd in the front portion of print media;

    In described a plurality of idler rollers, the idler rollers that the direction of advancing along print media is positioned at rearmost position is disposed in the scope of-15 °

    to+5 °

    starting from the predetermined point of the periphery of delivery roll,Wherein, described predetermined point is to extend to the point the tangent line of periphery of delivery roll and described periphery that delivery roll periphery tangentially intersects in the contact portion between alignment roller.

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