Image forming apparatus, image forming method and non-transitory computer-readable storage medium
US-9223279-B2 · Dec 29, 2015 · US
Method and apparatus for compensation of banding from multiple sources in marking platform
US8929758B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8929758-B2 |
| Application number | US-201313855322-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 2, 2013 |
| Priority date | Dec 13, 2010 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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A method for compensation of banding in a marking platform includes: initiating a calibration stage; marking a test pattern over multiple intervals of a lowest fundamental frequency among marking modules; obtaining image data for the test pattern from a sensor; obtaining 1× signals from sensors associated with the marking modules; and processing the image data in relation to the 1× signals to form banding profiles for multiple marking modules. Alternatively, the method may include: processing image data in relation to 1× signals to form banding profiles for multiple marking modules; determining amplitudes in multiple banding profiles exceeds a threshold to identify dominant banding profiles; and processing dominant banding profiles to form dominant banding signatures. Alternatively, the method may include: initiating a correction stage; obtaining 1× signals from sensors associated with dominant marking modules; and periodically processing dominant banding signatures and 1× signals to determine a banding compensation value.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for compensation of banding in a marking platform, comprising: a) obtaining banding image data for a banding test pattern from a test pattern image sensor, wherein the banding test pattern is indicative of banding characteristics of a marking platform, wherein each of at least two select marking modules in the marking platform are provisioned with at least one once around sensor adapted to provide a 1× signal indicative of a fundamental frequency fo…
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Physics · mapped topic
Physics · mapped topic
- G03G15/5058Primary
Physics · mapped topic
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- What does patent US8929758B2 cover?
- A method for compensation of banding in a marking platform includes: initiating a calibration stage; marking a test pattern over multiple intervals of a lowest fundamental frequency among marking modules; obtaining image data for the test pattern from a sensor; obtaining 1× signals from sensors associated with the marking modules; and processing the image data in relation to the 1× signals to f…
- Who is the assignee on this patent?
- Xerox Corp
- What technology area does this patent fall under?
- Primary CPC classification G03G15/5058. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 06 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).