System and method for inkjet printing with a differential halftoned protective overcoat with gloss compensation

A halftone, inkjet technology, applied in printing, inking devices, typewriters, etc., can solve problems such as increasing printing costs

Inactive Publication Date: 2012-07-11
XEROX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

While a high-coverage clearcoat applied to an image formed on a substrate would be beneficial in preventing or minimizing damage from ink abrasion of the im...

Method used

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  • System and method for inkjet printing with a differential halftoned protective overcoat with gloss compensation
  • System and method for inkjet printing with a differential halftoned protective overcoat with gloss compensation
  • System and method for inkjet printing with a differential halftoned protective overcoat with gloss compensation

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Embodiment Construction

[0017] For a general understanding of the context of the systems and methods disclosed herein, as well as details of the systems and methods, reference is made to the accompanying drawings. In the drawings, the same reference numerals are used to refer to the same elements throughout. As used herein, the term "halftone" refers to the application of ink on a print medium in a patterned manner, wherein the ink partially covers the areas on the print medium where the ink is applied. The halftone level refers to the fraction or percentage of the surface of the printed area that is ink coated. For example, printing ink at a halftone level of 50% coats half of the target surface area of ​​the image receiver with ink, while the remaining 50% remains uncoated. 100% halftone is equivalent to solidly coating a target area of ​​the media surface with ink, while 0% halftone does not apply any ink to a given target area. As used herein, the term "gloss level" refers to the degree to whic...

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Abstract

The invention relates to a system and a method for inkjet printing with a differential halftoned protective overcoat with gloss compensation. The method for operating an inkjet imaging system includes generating a coverage area map that identifies areas of an image that have different coverage area densities. Color inkjet ejectors form an image on an image receiving member, and clear inkjet ejectors eject halftone patterns on the image receiving member and on the ink forming the image. The halftone levels of the clear ink in each area on the image and image receiving member are selected in response to the coverage area density for each area.

Description

technical field [0001] The present disclosure relates to inkjet printing, and, in particular, to phase change inkjet printing systems using clear ink coatings. Background technique [0002] One difficulty faced in imaging devices, especially imaging devices utilizing phase change inks for imaging, is ink abrasion during print handling. Two types of ink wear include ink rub and ink offset. Ink smear refers to ink smearing or ink scratching of an image on a receiving substrate such as paper. Ink set-off means that ink is transferred from an image formed on a surface or part of a surface of a receiving substrate to another surface or part of the surface of said substrate. Ink smearing and ink smearing are particular concerns for applications that require extended handling, such as the exterior of envelopes or printed sheets inserted into envelopes. FIG. 7A , depicting a prior art media sheet, provides a cross-sectional view of an ink image including an ink layer 704 on a med...

Claims

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Application Information

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IPC IPC(8): B41J2/01
CPCB41J2/2114B41J2/1755B41J2202/21B41J3/543
Inventor 约瑟夫·H·朗
Owner XEROX CORP
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