Method for enhancing perforation speed
AssigneeLexmark International, Inc.
InventorsAdam Ahne, Edmund James, Michael Marra, Randall Mayo
Life of this patent
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Abstract
A method for perforating a media includes (a) forming a first set of perforations beginning at a perforation row Rstart and ending at a perforation row Rend vertically spaced from the perforation row Rstart, wherein the media is moved in a first media feed direction substantially perpendicular to the bi-directional scanning path before each successive perforation in the first set of perforations; and (b) feeding the media in a second media feed direction opposite the first media feed direction by a distance D1.
Claims52
A method for perforating a media using an imaging apparatus having a carriage mounting a perforator and configured for reciprocation along a bi-directional scanning path, said media having a horizontal dimension and a vertical dimension, said bi-directional scanning path being parallel to said horizontal dimension and perpendicular to said vertical dimension, said method comprising:
- (a) forming a first set of perforations beginning at a perforation row Rstart and ending at a perforation row Rend vertically spaced from said perforation row Rstart, wherein said media is moved in a first media feed direction substantially perpendicular to said bi-directional scanning path before each successive perforation in said first set of perforations;
- and
- (b) feeding said media in a second media feed direction opposite said first media feed direction by a distance D1.
An imaging apparatus, comprising:
- a carriage mounting a perforator and configured for reciprocation along a bi-directional scanning path;
- a feed roller for feeding a media, said media having a horizontal dimension and a vertical dimension, said bi-directional scanning path being parallel to said horizontal dimension and perpendicular to said vertical dimension;
- a drive unit coupled to said feed roller for driving said feed roller;
- and
- a controller coupled to said carriage, said perforator and said drive unit, said controller executing program instructions for:
- (a) forming a first set of perforations beginning at a perforation row Rstart and ending at a perforation row Rend vertically spaced from said perforation row Rstart, wherein said media is moved in a first media feed direction substantially perpendicular to said bi-directional scanning path before each successive perforation in said first set of perforations;
- and
- (b) feeding said media in a second media feed direction opposite said first media feed direction by a distance D1.
Dependencies are inferred from the claim text.