Patent ID: 7288356

Claim:
A method for forming an image comprising the steps of: forming an electrostatic charge image on an electrostatic charge image bearing member being charged; forming a toner image by developing the formed electrostatic charge image by a toner; transferring the formed toner image on a transfer material; and fixing the transferred toner image on the transfer material to obtain a fixed image, wherein: the step of forming the electrostatic charge image comprises the steps of: forming a first electrostatic charge image to be developed by a first toner selected from a pale cyan toner and a deep cyan toner; and forming a second electrostatic charge image to be developed by a second toner selected from the pale cyan toner and the deep cyan toner, except of the first toner; the step of forming the toner image comprises the steps of: forming a first cyan toner image by developing the first electrostatic charge image with the first toner; and forming a second cyan toner image by developing the second electrostatic charge image with the second toner; the step of transferring comprises the step of transferring the first cyan toner image and the second cyan toner image to form a cyan toner image composed of the first cyan toner image and the second cyan toner image which are being overlapped one on another on the transfer material; the pale cyan toner comprises at least a binder resin and a colorant and a deep cyan toner comprises at least a binder resin and a colorant; when a toner image fixed on plain paper is expressed by an L*a*b* color coordinate system where a* represents a hue in the red-green direction, b* represents a hue in the yellow-blue direction, and L* represents a lightness, in a fixed image of the pale cyan toner, the pale cyan toner has a value of a* (a* C1 ) in a range of −30 to −19 when b* is −20 and a value of a* (a* C2 ) in a range of −45 to −29 when b* is −30; in a fixed image of the deep cyan toner, the deep cyan toner has a value of a* (a* C3 ) in a range of −29 to −19 when b* is −20 and a value of a* (a* C4 ) in a range of −43 to −29 when b* is −30; and the relationships of a* C1 ≦a* C3 and a* C2 ≦a* C4 are satisfied.