IMAGE FORMING UNIT AND IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To reduce a variation of a contact pressure between a photoreceptor drum and a developing roller.SOLUTION: An image forming unit includes: a first unit which rotatably supports an image carrier where an electrostatic latent image is formed; and a second unit which rotatably supports a developing agent carrier which develops a developing agent with the electrostatic latent image. The first unit includes: a first engaging part which is formed on one end side in a rotary shaft direction of the image carrier; a second engaging part which is formed on the one end side at a prescribed distance from the first engaging part; and a third engaging part which is formed on the other end side of the one end in the rotary shaft direction and between the first engaging part and the second engaging part. The second unit includes: a first part to be engaged which is engaged with the first engaging part; a second part to be engaged which is engaged with the second engaging part; and a third part to be engaged which is engaged with the third engaging part.