Printer roll feed mechanism
AssigneeDatamax-O'Neil Corporation
InventorsKenneth Colonel, Richard Hatle, Michael James Wells
Life of this patent
Estimating the term…
Abstract
A media feeding system comprises a driver configured to rotate a media roll in a first direction; a vacuum roller positioned in a media feed path and configured to rotate in the first direction; and a media end detecting sensor positioned in the media feed path, the media end detecting sensor being configured to detect a leading edge of the media; wherein the driver rotates the media roll in a second direction opposite the first direction in response to the sensor detecting the leading end of the media.
Claims20
A method for loading print media in a printer, the method comprising:
- rotating a print media roll having a leading edge in a first direction;
- rotating in the first direction a vacuum roller positioned prior to a media guide in a media path;
- detecting the leading edge of the print media with a media end detecting sensor positioned in the media path prior to the leading edge being received by the media guide;
- rotating the print media roll in a second direction in response to detecting the leading edge of the print media prior to the leading edge being received by the media guide;
- and
- guiding the print media along the media path with the vacuum roller.
A media feeding system, comprising:
- a driver configured to rotate a media roll in a first direction;
- a vacuum roller positioned before a media guide in a media feed path and configured to rotate in the first direction;
- and
- a media end detecting sensor positioned before the media guide and after the vacuum roller in the media feed path, the media end detecting sensor being configured to detect a leading edge of the media;
- wherein the driver rotates the media roll in a second direction opposite the first direction in response to the sensor detecting the leading end of the media prior to being received by the media guide.
A printer, comprising:
- a housing;
- a printing mechanism positioned in the housing;
- and
- a media feeding mechanism positioned in the housing, comprising:
- a vacuum roller positioned in a media path prior to a media guide, the vacuum roller being configured to rotate in a first direction and push media along a media path,
- a media end detecting sensor positioned in the media path prior to the media guide,
- a driver configured to rotate a media roll in a second direction in response to the media end detecting sensor detecting a leading end of the media prior to being received by the media guide, and
- a first portion of the media guide configured to guide media pushed by the vacuum roller along the media path.
Dependencies are inferred from the claim text.