Claims
- 1. A process for improving the signal to noise ratio of a developer comprising subjecting the developer to an optical sensor which measure the toner concentration and wherein said developer is comprised of a toner and carrier, wherein said carrier possesses a substantially high diffuse reflectivity of greater than 20 percent.
- 2. The process of claim 1, wherein said substantially high diffuse reflectivity between 20 and 50 percent.
- 3. The developer composition of claim 2, said carrier has a coating thereon possesses said substantially high diffuse reflectivity.
- 4. The process of claim 3, said coating includes a pigment which possesses said substantially high diffuse reflectivity.
- 5. The process of claim 1, wherein the difference between said substantially high diffuse reflectivity of said carrier and diffuse reflectivity of the toner is greater than 5 percent.
- 6. The process of claim 5, wherein said toner has a diffuse reflectivity between 0% and 20%.
Parent Case Info
[0001] This is a divisional of U.S. application Ser. No. 10/012,440 filed Dec. 12, 2001 by the same inventors, and claims priority therefrom.
[0002] Reference is made to U.S. Pat. No. 6,606,463, entitled “OPTICAL TONER CONCENTRATION SENSOR,” by Gross et al., the disclosure(s) of which is incorporated herein.
Divisions (1)
|
Number |
Date |
Country |
Parent |
10012440 |
Dec 2001 |
US |
Child |
10649984 |
Aug 2003 |
US |