Heat development apparatus
AssigneeFuji Photo Film Co., Ltd.
InventorsMasaharu Ogawa, Nobuyuki Torisawa
Life of this patent
Estimating the term…
Abstract
A cooling section 400 for cooling a recording material A, which is a recording material, is disposed in a downstream portion of a heat development section 18. The cooling section 400 has a pair structure consisting of a metal roller 404 and a roller 402 made of an elastic material. The metal roller 404 having excellent heat conductivity is brought into contact with an image forming surface of the recording material A. As a result of the foregoing structure, the recording material A subjected to the heat development can uniformly be cooled to a temperature not higher than a development interruption temperature during conveyance in the cooling section 400. The metal roller may be modified variously. For example, the metal roller is cooled by a cooling mechanism or replaced by a belt.
Claims25
A heat development apparatus, comprising:
- an image exposing section for forming a latent image by exposing a recording material;
- a heat development section for performing development by subjecting the recording material on which the latent image has been formed to heat treatment;
- and
- a cooling section having heat transmitting rollers which cool the recording material to a temperature not higher than a development interruption temperature during movement of the recording material subjected to the heat treatment, wherein said heat development section comprises a plate heater, said plate heater divided in a direction in which the recording material is conveyed, and a temperature of a rearmost plate heater of said divided plate heaters is set so as to lower a temperature of the recording material to a lowermost temperature for a development reaction or a development reaction interruption temperature.
A heat development apparatus, comprising:
- an image exposing section for forming a latent image by exposing a recording material;
- a heat development section for performing development by subjecting the recording material on which the latent image has been formed to heat treatment;
- and
- a cooling section having a heat conductive belt which cools the recording material to a temperature not higher than a development interruption temperature during movement of the recording material subjected to the heat treatment, wherein said heat development section comprises a plate heater, said plate heater divided in a direction in which the recording material is conveyed, and a temperature of a rearmost plate heater of said divided plate heaters is set so as to lower a temperature of the recording material to a lowermost temperature for a development reaction or a development reaction interruption temperature.
A heat development apparatus, comprising:
- an image exposing section for forming a latent image by exposing a recording material;
- a heat development section for performing development by subjecting the recording material on which the latent image has been formed to heat treatment;
- and
- a cooling section arranged to cool the recording material to a temperature not higher than a development interruption temperature during movement of the recording material subjected to the heat treatment by holding the recording material by a plurality of rollers and having rear rollers of said plural rollers which lower the temperature of the recording material to a temperature not higher than a glass transition point of a base of the recording material, wherein said heat development section comprises a plate heater, said plate heater divided in a direction in which the recording material is conveyed, and a temperature of a rearmost plate heater of said divided plate heaters is set so as to lower a temperature of the recording material to a lowermost temperature for a development reaction or a development reaction interruption temperature.
Dependencies are inferred from the claim text.