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Printhead color density correction in printing systems
US8944548B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944548-B2 |
| Application number | US-201313747573-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 23, 2013 |
| Priority date | Jan 23, 2013 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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A printing system includes a linehead that jets ink onto a moving print media to print a test block and an integrated imaging system positioned downstream of the linehead with respect to a media transport direction. The integrated imaging system includes an opening in a housing for receiving light reflected from a moving print media. A folded optical assembly in the housing receives the reflected light and transmits the light a distance. One or more image sensors, having known color filter arrays, within the housing each receive the light and capture one or more images of the printed test block. An image processing device is connected to the integrated imaging system for receiving pixel data from the one or more image sensors and configured to determine a color of the ink and a density of the printed test block using the pixel data.
First claim
Opening claim text (preview).
The invention claimed is: 1. A printing system, comprising: a linehead that jets ink onto a moving print media to print a test block; an integrated imaging system positioned downstream of the linehead with respect to a media transport direction, wherein the integrated imaging system comprises: a housing; an opening in the housing for receiving light reflected from a moving print media; a folded optical assembly in the housing that receives the reflected light and transmits…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B41J29/393Primary
Operations & Transport · mapped topic
- H04N1/504Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8944548B2 cover?
- A printing system includes a linehead that jets ink onto a moving print media to print a test block and an integrated imaging system positioned downstream of the linehead with respect to a media transport direction. The integrated imaging system includes an opening in a housing for receiving light reflected from a moving print media. A folded optical assembly in the housing receives the reflect…
- Who is the assignee on this patent?
- Chen Samuel, Rzadca Mark C, Zeise Eric K, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification B41J29/393. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).