Toner image forming device, and image forming apparatus

摘要

A toner image forming device includes a first toner image forming section including a charged first image holding member, a first exposing unit that emits light onto the first image holding member to form a latent image thereon, and a first developing unit that develops the latent image by a black toner to form a toner image, a second toner image forming section including a charged second image holding member, a second exposing unit that emits light onto the second image holding member to form a latent image thereon, and a second developing unit that develops the latent image by a toner of color other than black to form a toner image, and a controller that performs control so that the number of toners that the second toner image forming section uses is larger than the number of toners that the first toner image forming section uses.

主权项

1. A toner image forming device comprising:
a first toner image forming section including a charged first image holding member, a first exposing unit that emits light onto the first image holding member to form a latent image on the first image holding member, and a first developing unit that develops the latent image formed on a surface of the first image holding member by a black toner to form a toner image; a second toner image forming section including a charged second image holding member, a second exposing unit that emits light onto the second image holding member to form a latent image on the second image holding member, and a second developing unit that develops the latent image formed on a surface of the second image holding member by a toner of each single color other than black to form a toner image; and a controller that performs control so that the number of toner particles that the second toner image forming section uses per unit area with respect to an image signal of a first coverage is larger than the number of toner particles that the first toner image forming section uses per unit area with respect to the image signal of the first coverage.