Invention Grant
US07717417B2 Devices for improving the reliability of feeding media sheets within an image forming device 有权
用于提高在图像形成装置内馈送介质片材的可靠性的装置

  • Patent Title: Devices for improving the reliability of feeding media sheets within an image forming device
  • Patent Title (中): 用于提高在图像形成装置内馈送介质片材的可靠性的装置
  • Application No.: US11765466
    Application Date: 2007-06-20
  • Publication No.: US07717417B2
    Publication Date: 2010-05-18
  • Inventor: Niko Jay Murrell
  • Applicant: Niko Jay Murrell
  • Applicant Address: US KY Lexington
  • Assignee: Lexmark International, Inc.
  • Current Assignee: Lexmark International, Inc.
  • Current Assignee Address: US KY Lexington
  • Agent David Kalish; John Victor Pezdek
  • Main IPC: B65H3/52
  • IPC: B65H3/52
Devices for improving the reliability of feeding media sheets within an image forming device
Abstract:
The present application is directed to devices and methods for moving media sheets in an image forming device. In one embodiment, a contact member includes a contact roller that contacts a top-most media sheet in a stack of media sheets positioned on a support surface in an input area of the image forming device. A hub extends outward from an axial side of the contact roller. The hub includes a smaller length than the contact roller, forming a gap between the hub and the top-most media sheet when the contact roller is in contact with the top-most media sheet. The hub prevents or reduces transverse buckling of the top-most media sheet when it is moved from the stack of media sheets.
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