Toner for developing latent electrostatic images, and image forming method and device
AssigneeRicoh Company, Ltd.
InventorsToyoshi Sawada, Masanori Suzuki, Kohki Katoh, Yohichiroh Watanabe, Masahide Yamashita, Akihiro Kotsugai, Keiko Shiraishi
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Abstract
A toner for developing latent electrostatic images is provided which contains, in a binder resin, at least a coloring agent formed from a metal material. A saturation magnetization of the toner is 0.01 to 10 emu/g, and a true specific gravity thereof is 1.33 to 1.62 g/m3. Also provided are an electrostatic charge image developer containing the toner for developing latent electrostatic images, an image forming device, and an image forming method using the toner for developing latent electrostatic images.
Claims39
A toner for developing latent electrostatic images comprising:
- a coloring agent comprising a metal material;
- and
- a binder resin;
- wherein said toner has a saturation magnetization of 0.01 to 10 emu/g, and a true specific gravity of 1.33 to 1.62 g/cm3.
A container device configured to contain toner, comprising;
- a container;
- and
- a toner contained in said container, said toner configured to develop latent electrostatic images, containing at least a coloring agent formed from a metal material and a binder resin containing said coloring agent, and
- having a saturation magnetization of 0.01 to 10 emu/g and a true specific gravity of 1.33 to 1.62 g/cm3.
An electrostatic charge image developer comprising at least a toner for developing latent electrostatic images, said toner containing, in a binder resin, at least a coloring agent formed from a metal material, a saturation magnetization of said toner being 0.01 to 10 emu/g, and a true specific gravity of said toner being 1.33 to 1.62 g/cm3.
An image forming method comprising:
- a latent electrostatic image forming step of forming a latent electrostatic image on a latent electrostatic image carrier;
- and
- a developing step of developing said electrostatic latent image by using an electrostatic charge image developer accommodated in a developing device, said electrostatic charge image developer containing at least a toner for developing latent electrostatic images, said toner containing, in a binder resin, at least a coloring agent formed from a metal material, a saturation magnetization of said toner being 0.01 to 10 emu/g, and a true specific gravity of said toner being 1.33 to 1.62 g/cm3.
An image forming device comprising:
- a latent electrostatic image carrier;
- a latent electrostatic image forming means for forming a latent electrostatic image on said electrostatic latent image carrier;
- and
- a developing means for accommodating an electrostatic charge image developer containing at least a toner for developing latent electrostatic images, said toner containing, in a binder resin, at least a coloring agent formed from a metal material, a saturation magnetization of said toner being 0.01 to 10 emu/g, and a true specific gravity of said toner being 1.33 to 1.62 g/cm3, and for developing said electrostatic latent image.
Dependencies are inferred from the claim text.