Patent ID: 8080359
Filing Date: 2011-12-20
Classification: G03G

Abstract:
1. An image forming method comprising the step of: fixing a toner image formed with a toner comprising a releasing agent on a transfer material employing a contact-heating fixing device comprising a heating roller and a belt-shaped pressure body, wherein the heating roller is placed on an unfixed toner image side of the transfer material; the belt-shaped pressure body is placed on a side opposite to the unfixed toner image side of the transfer material; a nip portion is formed with the heating roller and the belt-shaped pressure body; the belt-shaped pressure body having only two pressure pads to create the nip portion, where one of the two pressure pads is provided on an entrance side of the nip portion, and another one of the two pressure pads is provided on an exit side of the nip portion, a relationship between pressure X on the entrance side of the nip portion and pressure Y on the exit side of the nip portion satisfies X<Y; the releasing agent comprises a 1 wherein R 1 and R 2 each represent a hydrocarbon group with a main chain having 13-30 carbon atoms, that may have a substituent, or may not have a substituent, and R 1 and R 2 each may be identical or different.