PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER

• US 20080096123A1
• Filed: 06/28/2007
• Published: 04/24/2008
• Est. Priority Date: 01/31/2006
• Status: Abandoned Application

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Uematsu, Hiroki, Shimada, Akira, Kikuchi, Toshihiro, Kawahara, Masataka, Sumida, Takayuki, Koganei, Akio, Maruyama, Akio, Teramoto, Kyoichi
• Application Number:
  US11/770,006
• Publication Number:
  US 20080096123A1
• Time in Patent Office: Days
• US Class Current: 430/127
• CPC Class Codes: G03G 5/047 characterised by the charge-generation layers or charge transport layers G03G5/0433 and G03G5/0436 take precedence
• CPC Class Codes: G03G 5/05 Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
• CPC Class Codes: G03G 5/0525 Coating methods
• CPC Class Codes: G03G 5/10 Bases for charge-receiving or other layers

Abstract

A process for producing an electrophotographic photosensitive member is disclosed. The electrophotographic photosensitive member includes a conductive support and a surface layer provided thereon containing at least a resin. The process has the step of forming a plurality of depressed portions on the surface layer by irradiation with laser light having a wavelength of 400 nm or less and having an output characteristic of a pulse width of 100 ns or less.

Claims

1-7. -7. (canceled)

8. A process for producing an electrophotographic photosensitive member having on a conductive support a surface layer containing at least a resin, which comprises:

the step of forming depressed portions on the surface layer by irradiation with laser light having a wavelength of 400 nm or less and having an output characteristic of a pulse width of 100 ns or less.

9. The process according to claim 8, wherein the laser light is excimer laser light.

10. The process according to claim 8, wherein the depressed portions are formed in an arrangement in which both depressed portions and non-depressed portions are present on any lines in the peripheral direction of the surface layer.

11. The process according to claim 8, wherein an arrangement pattern of the depressed portions in a unit area of the surface layer is repeatedly formed for each unit area.

12. The process according to claim 8, wherein the step comprises a step of forming the depressed portions so as to have a predetermined pattern of arrangement by selectively irradiating the surface layer with the laser light through a mask having transparent areas and opaque areas to the laser light.

13. The process according to claim 12, wherein the step comprises a step of forming the depressed portions at different positions on the surface layer by shifting a position to be irradiated with the laser light through the mask.

14. A process for producing an electrophotographic photosensitive member provided with a conductive support and a photosensitive layer formed thereon and comprising a charge generating material and a charge transporting material, the electrophotographic photosensitive member having a surface layer whose surface has been roughened with a plurality of depressed portions formed thereon, the surface layer comprising a resin, the process comprising:

the step of forming the depressed portions by irradiating the surface of the surface layer with laser light having a pulse width of 100 ns or less, emitted from a laser having an oscillation wavelength in a wavelength region of 400 nm or less, and subjecting the surface layer to abrasion processing.