Charge-transporting compound, electrophotographic photoreceptor, image-forming apparatus, and process cartridge

An image-forming apparatus comprising:

• an electrophotographic photoreceptor comprising:
• a conductive support;
• and a photosensitive layer, wherein the photosensitive layer comprises a functional layer that comprises at least one of:
• a first compound represented by formula (I);
• and a second compound derived from the first compound;
• a charging device that charges the electrophotographic photoreceptor;
• an exposing device that exposes the charged electrophotographic photoreceptor to light to form an electrostatic latent image thereon;
• a developing device that develops the electrostatic latent image to form a toner image;
• and
• a transfer device that transfers the toner image onto a transfer medium,
• wherein F represents a hole-transporting, n-valent organic group;
• R independently represents an organic group having from 1 to 18 carbon atoms;
• T represents a divalent group;
• m indicates 0 or 1;
• and n indicates an integer of from 1 to 4.

A process cartridge comprising:

• an electrophotographic photoreceptor comprising:
• a conductive support;
• and a photosensitive layer, wherein the photosensitive layer comprises a functional layer that comprises at least one of:
• a first compound represented by formula (I);
• and a second compound derived from the first compound;
• and
• at least one selected from:
• a charging device that charges the electrophotographic photoreceptor;
• a developing device that develops an electrostatic latent image formed through exposing the charged electrophotographic photoreceptor to form a toner image;
• and a cleaning device that removes a toner that remains on the electrophotographic photoreceptor after transfer,
• wherein F represents a hole-transporting, n-valent organic group;
• R independently represents an organic group having from 1 to 18 carbon atoms;
• T represents a divalent group;
• m indicates 0 or 1;
• and n indicates an integer of from 1 to 4.

A charge-transporting compound represented by general formula (I-A):

• wherein X1, X2 and X3 each independently represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 10 carbon atoms, an alkoxyl group having from 1 to 10 carbon atoms, a substituted or unsubstituted aryl group, an aralkyl group having from 7 to 10 carbon atoms, a substituted or unsubstituted styryl group, a substituted or unsubstituted butadiene group or a substituted or unsubstituted hydrazone group;
• l1, l2 and l3 each represents an integer of from 0 to 2;
• R1, R2 and R3 each independently represents an organic group having from 1 to 18 carbon atoms;
• T represents a methylene group;
• and n1, n2 and n3 each represents 0 or 1, and n1, n2 and n3 satisfies the relationship (n1+n2+n3)≧1.