摘要:
A photographic element comprising a support provided thereon with at least one light-sensitive silver halide emulsion layer containing a nondiffusible compound which receives at least one electron in an alkaline condition to release a photographically useful material and a nondiffusible electron donor or a precursor thereof having the following formula (I) or (II): ##STR1## wherein R.sup.1 represents hydrogen, an alkyl, an aryl or a heterocyclic group, R.sup.2 represents hydrogen, an alkyl, an aryl, a heterocyclic, an amino, a carbamide, a sulfonamide, a sulfamoyl, a carbamoyl or a ureido group, R.sup.3 and R.sup.4 each is hydrogen, --COR.sup.5, --SO.sub.2 R.sup.6 or --CSR.sup.7 wherein R.sup.5 and R.sup.6 each is a substituted or unsubstituted, respectively, alkyl, alkenyl, aryl, heterocyclic, alkylamino, alkyloxy, aryloxy, alkylthio, arylthio, alkyloxycarbonyl or aryloxycarbonyl group, and R.sup.7 is a substituted or unsubstituted alkyllamino or arylamino group, said R.sup.4 being allowed to form a ring together with said R.sup.1.
摘要:
An image forming apparatus includes an image forming section having a detachable process cartridge provide with identification information; an identification information reading section to read the identification information of the process cartridge; and a control section to control the image forming apparatus on a basis of a comparison result between the identification information and license presence/absence judgment information used for judging whether the process cartridge is licensed or not.
摘要:
A process for forming a dye image on a receiving element by diffusion transfer from a photosensitive element is disclosed wherein the exposed photosensitive element is processed with an alkaline solution in the presence of a particular dye developer having at least one azo radical.