Electrophotographic photoreceptor and electrophotographic cartridge and electrophotographic imaging apparatus employing the same

The present invention discloses an electrophotographic photoreceptor, in which a photosensitive layer or a surface layer of an overcoating layer satisfies the following conditions (1) and (2): Tg > 100°C ... (1), and hardness > 0.22 GPa ... (2), in which Tg represents a glass transition temper...

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Main Authors LEE HWAN KOO, SONG HYE JI
Format Patent
LanguageEnglish
Korean
Published 09.04.2020
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Abstract The present invention discloses an electrophotographic photoreceptor, in which a photosensitive layer or a surface layer of an overcoating layer satisfies the following conditions (1) and (2): Tg > 100°C ... (1), and hardness > 0.22 GPa ... (2), in which Tg represents a glass transition temperature of the photosensitive layer. The photosensitive layer may effectively suppress or prevent a phenomenon in which a cleaning blade coming into contact with the same is overturned by controlling the photosensitive layer to satisfy the conditions (1) and (2), also increase a degree of freedom when selecting the cleaning blade, and reduce possibility of causing a high-frequency noise due to abrasion. The present invention also discloses an electrophotographic cartridge and an electrophotographic imaging apparatus comprising the photoreceptor. 감광층 또는 오버코팅층의 표면층이 다음 조건 (1) 및 (2)를 만족하는 전자사진 감광체가 개시된다: Tg > 100℃ ... (1), 및 경도 > 0.22 GPa ... (2), 여기에서, Tg는 상기 감광층의 유리전이온도를 나타낸다. 본 감광체는 조건 (1) 및 (2)를 만족하도록 제어함으로써 이와 접촉하는 클리닝 블레이드가 뒤집히는 현상을 효과적으로 억제 또는 방지할 수 있을 뿐만 아니라 클리닝 블레이드의 선정에 있어서 자유도를 증가시킬 수 있으며 마찰에 의한 고주파 소음 유발할 가능성을 감소시킬 수 있다. 본 감광체를 포함하는 전자사진 카트리지 및 전자사진 화상형성장치도 개시된다.
AbstractList The present invention discloses an electrophotographic photoreceptor, in which a photosensitive layer or a surface layer of an overcoating layer satisfies the following conditions (1) and (2): Tg > 100°C ... (1), and hardness > 0.22 GPa ... (2), in which Tg represents a glass transition temperature of the photosensitive layer. The photosensitive layer may effectively suppress or prevent a phenomenon in which a cleaning blade coming into contact with the same is overturned by controlling the photosensitive layer to satisfy the conditions (1) and (2), also increase a degree of freedom when selecting the cleaning blade, and reduce possibility of causing a high-frequency noise due to abrasion. The present invention also discloses an electrophotographic cartridge and an electrophotographic imaging apparatus comprising the photoreceptor. 감광층 또는 오버코팅층의 표면층이 다음 조건 (1) 및 (2)를 만족하는 전자사진 감광체가 개시된다: Tg > 100℃ ... (1), 및 경도 > 0.22 GPa ... (2), 여기에서, Tg는 상기 감광층의 유리전이온도를 나타낸다. 본 감광체는 조건 (1) 및 (2)를 만족하도록 제어함으로써 이와 접촉하는 클리닝 블레이드가 뒤집히는 현상을 효과적으로 억제 또는 방지할 수 있을 뿐만 아니라 클리닝 블레이드의 선정에 있어서 자유도를 증가시킬 수 있으며 마찰에 의한 고주파 소음 유발할 가능성을 감소시킬 수 있다. 본 감광체를 포함하는 전자사진 카트리지 및 전자사진 화상형성장치도 개시된다.
Author SONG HYE JI
LEE HWAN KOO
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Snippet The present invention discloses an electrophotographic photoreceptor, in which a photosensitive layer or a surface layer of an overcoating layer satisfies the...
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SubjectTerms CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
Title Electrophotographic photoreceptor and electrophotographic cartridge and electrophotographic imaging apparatus employing the same
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