PYRANTHRONE TYPE COMPOUND, ORGANIC PHOTORECEPTOR, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS
申请人:SHIBATA Toyoko
公开号:US20080166645A1
公开(公告)日:2008-07-10
An organic photoreceptor is described. The photosensitive layer contains a pyranthrone compound represented by Formula 1 which has been subjected to purification processing so as to have a mass reduction ratio D
400/450
between 400° C. and 450° C. of not more than 2.0% in a thermogravimetric analysis;
D
400/450
=(
G
400
−G
450
)/
G
i
}×100
wherein G
i
is a mass at 25° C., and G
400
and G
450
are each mass at 400° C. and 450° C., respectively,
wherein R
1
through R
14
are each a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a halogen atom, a cyano group or a nitro group. The image forming method using the photoreceptor, and the pyranthrone compound are also disclosed.