| 摘要 |
PROBLEM TO BE SOLVED: To provide a full-color image forming method which is excellent in both of low-temperature fixing property and hot offset resistance by using black toner, cyan toner, magenta toner and yellow toner. SOLUTION: In the full-color image forming method, all of four-colors of toner have an apparent viscosity at 105°C of 50,000 to 300,000 Pa s and an apparent viscosity at 130°C of 3,000 to 30,000 Pa s, and among four colors of the toner transferred onto a transfer medium, toner which has the maximum peak or a shoulder peak at a temperature of 105 to 130°C in a graph of temperature vs. logarithm molten viscosity is used as the toner to be arranged on the uppermost layer on the transfer medium, and toner which has neither maximum peak nor a shoulder peak at a temperature of 105 to 130°C is used as other toner to be arranged on lower layers. COPYRIGHT: (C)2009,JPO&INPIT
|
