Toner
A toner comprising a binder resin and a colorant, wherein the toner has a Martens hardness, as measured at a maximum load condition of 2.0×10 −4 N, of from 200 MPa to 1,100 MPa.
1. A toner comprising a toner particle that contains a binder resin and a colorant, wherein
the toner has a Martens hardness, as measured at a maximum load condition of 2.0×10 −4 N, of from 200 MPa to 1,100 MPa.
2. The toner according to claim 1 , wherein the toner has a Martens hardness, as measured at a maximum load condition of 9.8×10 −4 N, of from 5 MPa to 100 MPa.
3. The toner according to claim 1 , wherein the toner particle has a surface layer containing an organosilicon polymer, and
the number of carbon atoms directly bonded to the silicon atom in the organosilicon polymer is on average from 1 to 3 per silicon atom.
4. The toner according to claim 3 , wherein a fixing ratio of the organosilicon polymer is at least 90%.
5. The toner according to claim 3 , wherein the organosilicon polymer has a substructure represented by formula (1)
R—SiO 3/2 formula (1)
(R represents a hydrocarbon group having from 1 to 6 carbons).
6. The toner according to claim 5 , wherein R is a hydrocarbon group having from 1 to 3 carbons.
7. The toner according to claim 1 , wherein the toner particle has a positively charged particle on the surface thereof, and
the number-average particle diameter of the positively charged particle is from 0.10 μm to 1.00 μm.
8. The toner according to claim 7 , wherein a fixing ratio of the positively charged particle to the toner particle is from 5% to 75%.
9. The toner according to claim 1 , wherein the toner particle has a hydrotalcite on the surface thereof.
10. The toner according to claim 1 , wherein the toner particle has boron nitride on the surface thereof.
11. The toner according to claim 10 , wherein a fixing ratio of the boron nitride to the toner particle is at least 80%.