Patent ID: 7396638

Claim:
An image forming method comprising: image-wise exposing to a blue semiconductor laser which has a light emission peak intensity within a wavelength range of 350 to 450 nm a photothermographic material comprising, on a same surface of a support, a photosensitive silver halide having a silver iodide content of 40 to 100 mol %, a non-photosensitive organic silver salt of an aliphatic carboxylic acid including a silver behenate, a reducing agent, a binder, and an adsorbable redox compound represented by Formula (I), wherein, in Formula (I), A represents a group that can be adsorbed by silver halide; W represents a divalent connecting group; n represents 0 or 1; B represents a reducing group that is capable of reducing silver ions and is a residue derived from a compound represented Formula B 13 ; and thermally developing the image-wise exposed photothermographic material with a developing time of 1 to 12 seconds and with a developing temperature of 110° C. to 140° C.; wherein in Formula B 13 , R b13 , represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; R H13 represents a hydrogen atom, an alkyl group, an aryl group, an acyl group, an alkylsulfonyl group or an arylsulfonyl group; R b130 to R b133 each independently represent a hydrogen atom or a substituent; A-(W) n —B Formula (1) wherein the photothermographic material further includes a compound represented by the following formula (H): Q-(Y) n —C(Z 1 )(Z 2 )X Formula (H) wherein in formula (H), Q represents an alkyl group, an aryl group or a heterocyclic group; Y represents a divalent connecting group; n represents 0 or 1; Z 1 and Z 2 each independently represent a halogen atom; and X represents a hydrogen atom or an electron attracting group and wherein the reducing agent is a compound represented by the following formula (R-1): wherein in formula (R-1), R 11 and R 11 ′ each independently represent an alkyl group having 1 to 20 carbon atoms; R 12 and R 12 ′ each independently represent an alkyl group having 2 to 20 carbon atoms; L represents a —S—group or a —CHR 13 — group; R 13 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; X 1 and X 1 ′ each independently represent a hydrogen atom or a group that can substitute a benzene ring.