Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
An object of the present disclosure is to provide an electrophotographic photosensitive member with suppressed positive ghosts, and a process cartridge and an electrophotographic apparatus each including the electrophotographic photosensitive member. The present disclosure provides an electrophotographic photosensitive member having a support and a photosensitive layer on the support; the photosensitive layer comprises (α) a compound represented by the formula (1), and (β) at least one selected from the group consisting of a compound represented by the formula (2) and a compound represented by the formula (3), wherein a content of the (β) with respect to a content of the (α) is 50 to 850 mass ppm in the photosensitive layer.
1 . An electrophotographic photosensitive member having a support and a photosensitive layer on the support;
the photosensitive layer comprises
(α) a compound represented by a following formula (1), and
(β) at least one selected from the group consisting of a compound represented by a following formula (2) and a compound represented by a following formula (3), wherein a content of the (β) with respect to a content of the (α) is 50 to 850 mass ppm in the photo sensitive layer.
2 . The electrophotographic photosensitive member according to claim 1 ,
wherein the photo sensitive layer comprises the compound represented by the formula (2), and
wherein a content of the compound represented by the formula (2) with respect to a content of the compound represented by the formula (1) is 350 mass ppm or less in the photo sensitive layer.
3 . The electrophotographic photosensitive member according to claim 1 ,
wherein the photo sensitive layer comprises the compound represented by the formula (3), and
wherein a content of the compound represented by the formula (3) with respect to a content of the compound represented by the formula (1) is 480 mass ppm or less in the photo sensitive layer.
4 . The electrophotographic photosensitive member according to claim 1 ,
wherein the content of the (β) in the photosensitive layer with respect a total mass of the photo sensitive layer is 3 to 30 mass ppm.
5 . The electrophotographic photosensitive member according to claim 1 ,
wherein the content of the (α) in the photo sensitive layer with respect to a total mass of the photo sensitive layer is 9 to 50 mass %.
6 . A process cartridge for electrophotography comprising:
an electrophotographic photosensitive member;
and at least one unit selected from the group consisting of a charging unit, a developing unit, and a cleaning unit,
the process cartridge for electrophotography integrally supporting the electrophotographic photosensitive member and the at least one unit, and being detachably attachable to a main body of an electrophotographic apparatus,
wherein the electrophotographic photosensitive member having a support and a photosensitive layer on the support;
the photosensitive layer comprises
(α) a compound represented by a following formula (1), and
(β) at least one selected from the group consisting of a compound represented by a following formula (2) and a compound represented by a following formula (3), wherein a content of the (β) with respect to a content of the (α) is 50 to 850 mass ppm in the photo sensitive layer.
7 . An electrophotographic apparatus comprising:
an electrophotographic photosensitive member,
an exposing unit,
a charging unit,
a developing unit, and
a transfer unit,
wherein the electrophotographic photosensitive member having a support and a photosensitive layer on the support;
the photosensitive layer comprises
(α) a compound represented by a following formula (1), and
(β) at least one selected from the group consisting of a compound represented by a following formula (2) and a compound represented by a following formula (3), wherein a content of the (β) with respect to a content of the (α) is 50 to 850 mass ppm in the photosensitive layer.