Paper staging mechanism
US-9216868-B1 · Dec 22, 2015 · US
Adaptive scheduler that corrects for paper process directional arrival errors to print engine registration subsystem
US9002256B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9002256-B2 |
| Application number | US-57873409-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 14, 2009 |
| Priority date | Oct 14, 2009 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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Abstract
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Systems and methods are described that facilitate correcting for paper process direction arrival errors during a print job in a marker module of a print engine. Paper sheet arrival time is determined at a first registration point in a print engine or marker module thereof, and an average arrival time is compared to an expected arrival time to determine whether the pages are arriving on time, early, or late. The arrival time error is used to generate or look up a correction factor, which is added to an expected arrival time at a second registration point in the marker module or print engine to generate an updated expected arrival time. Print engine control parameters (e.g., sheet feeder timing, toner application, paper path speed, etc.) are adjusted according to the updated expected arrival time at the second registration point.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of correcting for paper process direction arrival errors during a print job in a print engine, comprising: determining paper sheet arrival times at a first registration point in the print engine over a predetermined time period; calculating a running average of the determined arrival times for most recent N sheets, where N is an integer, wherein the calculation of the running average is performed continuously for the duration of the print jo…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9002256B2 cover?
- Systems and methods are described that facilitate correcting for paper process direction arrival errors during a print job in a marker module of a print engine. Paper sheet arrival time is determined at a first registration point in a print engine or marker module thereof, and an average arrival time is compared to an expected arrival time to determine whether the pages are arriving on time, ea…
- Who is the assignee on this patent?
- Tooker Ana Perez, Bogert Ronald W, Kerxhalli David M, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B65H7/02. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 07 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).