Invention Grant
US07711277B2 Toner density estimating method and apparatus using toner image and toner supplying method and apparatus
失效
调色剂浓度估计方法和使用调色剂图像的调色剂供应方法和装置
- Patent Title: Toner density estimating method and apparatus using toner image and toner supplying method and apparatus
- Patent Title (中): 调色剂浓度估计方法和使用调色剂图像的调色剂供应方法和装置
-
Application No.: US11638459Application Date: 2006-12-14
-
Publication No.: US07711277B2Publication Date: 2010-05-04
- Inventor: Myung-kook Ahn , Kyu-cheol Shin
- Applicant: Myung-kook Ahn , Kyu-cheol Shin
- Applicant Address: KR Suwon-si, Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si, Gyeonggi-do
- Agency: Roylance, Abrams, Berdo & Goodman, L.L.P.
- Priority: KR10-2006-0072252 20060731
- Main IPC: G03G15/00
- IPC: G03G15/00
Abstract:
A toner density estimating method for a two-component developer is provided. The toner density estimating method includes: sensing photo-reflectance of a test pattern having a plurality of grayscales formed by using toner; calculating a rate of change of the photo-reflectance according to the grayscales of the test pattern; and estimating a toner density based on the rate of change. Accordingly, it is possible to accurately estimate the toner density irrespective of the influence of changes in temperature, humidity, or other external factors.
Public/Granted literature
Information query
