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Method and apparatus for control of gloss level in printed images

A technology for printing images and levels, used in printing devices, post-processing of printing, printing, etc.

Inactive Publication Date: 2014-03-12
XEROX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as mentioned above, many printed images are matte images produced using low gloss levels

Method used

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  • Method and apparatus for control of gloss level in printed images
  • Method and apparatus for control of gloss level in printed images
  • Method and apparatus for control of gloss level in printed images

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Experimental program
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Embodiment Construction

[0012] As used herein, the term "gloss level" refers to the tendency of a printed ink image to reflect light in a specular manner. For high gloss levels, the ink image reflects light in a more specular fashion. For low gloss levels, the ink image reflects light in a more diffuse manner. Inkjet printers can form ink images in a wide range of gloss levels, depending on the ink image's propensity to reflect light in a specular or diffuse manner. The term "gloss unit" refers to a numerical scale used to measure the gloss level of an ink image. The gloss level of the ink image is proportional to the number of gloss units measured for light reflected from the ink image. For purposes of illustration, this article refers to the specifications defined in the standard ASTM D2457 entitled "Standard Test Method for Specular Gloss of Plastic Films and Solid Plastics" and Numeric Gloss Unit (GU) published by ASTM International.

[0013] Figure 5 illustrates a prior art indirect inkjet p...

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PUM

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Abstract

An inkjet printer is configured to process print media having an ink image differently to alter a gloss level of the ink image on the print media. In one mode of operation, the printer moves print media bearing an ink image on one side only through a transfix nip a second time to reduce a gloss level of the printed image.

Description

technical field [0001] The present invention relates to inkjet printing, and more particularly, the present invention relates to inkjet printers that control the gloss level of images formed during inkjet printing. Background technique [0002] Generally, an inkjet printing machine or printer includes at least one printhead that ejects droplets or jets of liquid ink to form an ink image on a recording or imaging medium. Phase change inkjet printers employ phase change inks that are in a solid phase at ambient temperatures, but transform into a liquid state at elevated temperatures. Inkjets in the one or more printheads eject molten ink directly onto the print media, or onto an intermediate imaging member from which the image is transferred to the print media. Once the ejected ink is on the print media, the ink droplets solidify rapidly to form the printed image. [0003] One quality of a printed image is interchangeably referred to as the "gloss," "gloss level," or "glossi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J29/38B41J2/01
CPCB41J2/01B41J29/38B41J3/60B41J2/0057B41J2/17593B41M7/00B41F23/08
Inventor R·M·史密斯T·J·斯奈德
Owner XEROX CORP