Title:
電子写真感光体、プロセスカートリッジ及び画像形成装置
Document Type and Number:
Japanese Patent JP6784238
Kind Code:
B2
Abstract:
To provide an electrophotographic photoreceptor that can prevent the occurrence of a ghost image in a formed image.SOLUTION: A photosensitive layer 3 included in an electrophotographic photoreceptor 1 contains a charge generating agent, a hole transport agent, an electron transport agent, and a binder resin. The ratio of the mass of the hole transport agent to the mass of the electron transport agent is 2.0 or more. The ratio of the total mass of the hole transport agent and electron transport agent to the mass of the binder resin is 0.80 or more and 1.20 or less. While being rotated five cycles, when the electrophotographic photoreceptor 1 is charged in the first cycle, exposed in the second, third, and fourth cycles, and charged in the fifth cycle, the difference V-Vbetween a charging potential in the first cycle Vand a charging potential in the fifth cycle Vsatisfies the numerical expression (1) "+70 V≤V-V≤+90 V." In this case, the difference V-Vbetween a post-exposure potential in the second cycle Vand a post-exposure potential in the fourth cycle Vsatisfies the numerical expression (2) "+5 V≤V-V≤+14 V."SELECTED DRAWING: Figure 1
Inventors:
Satoshi Shimizu
Application Number:
JP2017141459A
Publication Date:
November 11, 2020
Filing Date:
July 21, 2017
Export Citation:
Assignee:
Kyocera Document Solutions Co., Ltd.
International Classes:
G03G5/047; G03G5/05; G03G5/06
Domestic Patent References:
| JP2017068014A | ||||
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Foreign References:
| WO2016159244A1 | ||||
| WO2005115970A1 | ||||
| WO2013157145A1 |
Attorney, Agent or Firm:
Hiroyuki Maei