Invention Grant
- Patent Title: Shaped charge generation layer for a photoconductive drum
-
Application No.: US16877783Application Date: 2020-05-19
-
Publication No.: US11256185B2Publication Date: 2022-02-22
- Inventor: Matthew David Heid , Laura Lee Kierstein , Weimei Luo , Prasanna Shrestha
- Applicant: LEXMARK INTERNATIONAL, INC.
- Applicant Address: US KY Lexington
- Assignee: LEXMARK INTERNATIONAL, INC.
- Current Assignee: LEXMARK INTERNATIONAL, INC.
- Current Assignee Address: US KY Lexington
- Main IPC: G03G5/00
- IPC: G03G5/00 ; G03G5/05 ; G03G5/047 ; G03G5/06 ; G03G5/10 ; G03G5/147

Abstract:
A photoconductive drum includes an elongated support element with a shaped charge generation layer. The layer extends from the support element at various thicknesses along a length thereof. Thicker charge generation portions provides denser optical densities compared to thinner portions allowing tailoring the photoconductive drum to compensate for imperfect optical scanning systems. A charge transport layer overcoats the charge generation layer. Optionally, an oxidation layer underlies the charge generation layer as does a protective overcoat overlying the charge transport layer. Various thicknesses and shapes of the charge generation layer are also disclosed.
Public/Granted literature
- US20210124278A1 SHAPED CHARGE GENERATION LAYER FOR A PHOTOCONDUCTIVE DRUM Public/Granted day:2021-04-29
Information query