Image forming apparatus and image forming method for transferring a powder to an image pattern on a recording medium

An image forming apparatus comprising:

• a powder holding member that holds a powder pattern formed of a powder and corresponding to an image pattern, the powder pattern being on a surface of the powder holding member and the image pattern being formed on a recording medium in advance;
• a transfer member that constitutes a nip part for nipping the recording medium, on which the image pattern is formed, with the powder holding member, and pastes the powder constituting the powder pattern to the image pattern at the nip part;
• a powder supply member that supplies powder to the surface of the powder holding member, the powder supply member transfers the powder held on a conveyance member to the surface of the powder holding member;
• and
• an adhesion force of the powder to the conveyance member of the powder supply member is smaller than an adhesion force of the powder to a part where the powder pattern is formed on the surface of the powder holding member, and is larger than an adhesion force of the powder to a part where the powder pattern is not formed on the surface of the powder holding member.