Title:
RESIN SUBSTRATE FOR ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM
Document Type and Number:
Japanese Patent JP2020166034
Kind Code:
A
Abstract:
To provide a resin substrate for electrophotographic photosensitive drum which is small in deflection by a contact pressure of a peripheral member.SOLUTION: There is provided a cylindrical resin substrate for electrophotographic photoreceptor, in which the resin substrate contains a polyester resin, the resin substrate has a central region having a predetermined width toward both ends of the resin substrate with a center in a direction perpendicular to the circumferential direction as a starting point and two end regions having predetermined widths toward the center from both of the ends of the resin substrate, and when a degree of crystallization of the central region is represented by A (%) and degrees of crystallization of the end regions are represented by B (%), relationships of A≥40 and 0.50≤B/A≤0.84 are satisfied.SELECTED DRAWING: Figure 5
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Inventors:
OGAWA MASARU
KOJIMA HIROOMI
BAMISHIN MASAHITO
KOJIMA HIROOMI
BAMISHIN MASAHITO
Application Number:
JP2019063871A
Publication Date:
October 08, 2020
Filing Date:
March 28, 2019
Export Citation:
Assignee:
CANON KK
International Classes:
G03G5/10; G03G15/00
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata