Optical scanning device and image forming apparatus including the same
US-2015370065-A1 · Dec 24, 2015 · US
Method for producing image forming apparatus, method for adjusting quantity of light emitted from printhead, and method for producing process cartridge
US8964240B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8964240-B2 |
| Application number | US-201313852109-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 28, 2013 |
| Priority date | May 31, 2012 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The method for producing an image forming apparatus includes emitting light beams from a printhead; optionally irradiating a photoreceptor with the light beams to form a latent image; optionally forming a visible image on a recording medium corresponding the latent image; obtaining plural pieces of information concerning a property of the light beams or lightness of the visible image at different positions in a direction; calculating variation width of N pieces of information corresponding to an attention area having a predetermined length in the direction; determining the number of pieces of information used for subjecting each of the N pieces of information to moving averaging, based on the variation width; when the number is two or more, subjecting each of the N pieces of information to moving averaging; and correcting quantities of light beams corresponding to the N pieces of information based on the average values.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for producing an image forming apparatus, which includes a printhead having multiple light emitting portions, which are arranged at different positions in a uniaxial direction to emit multiple light beams separated from each other in the uniaxial direction; and an image bearing member located on a light path of the multiple light beams, comprising: emitting multiple light beams separated from each other in the uniaxial direction from the multiple li…
Assignees
Inventors
Classifications
- G03G15/04045Primary
Physics · mapped topic
- G03G15/04054Primary
Physics · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8964240B2 cover?
- The method for producing an image forming apparatus includes emitting light beams from a printhead; optionally irradiating a photoreceptor with the light beams to form a latent image; optionally forming a visible image on a recording medium corresponding the latent image; obtaining plural pieces of information concerning a property of the light beams or lightness of the visible image at differe…
- Who is the assignee on this patent?
- Imai Shigeaki, Ricoh Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G03G15/04045. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 24 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).