摘要:
An electrophotographic photosensitive member comprises a layer containing a binder and at least one hydrazone compound represented by the following formula (1), (2), (3), (4), or (5): ##STR1##
摘要:
An electrophotographic photosensitive member comprises a layer containing a hydrazone compound represented by the following formula (1) or (2): ##STR1## wherein, Z is an atomic group necessary to complete a substituted or unsubstituted heterocyclic ring; R.sub.11, R.sub.12, R.sub.21, R.sub.22 and R.sub.23 represent substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aryl, and the combinations of R.sub.11 with R.sub.12 and of R.sub.22 with R.sub.23 can form each a pyrrolidine ring, piperidine ring, or morpholine ring; n is 1 or 2; and A is a monovalent heterocyclic compound residue.
摘要:
A process for development comprises arranging an electrostatic image bearing member having electrostatic images on the surface and a developer carrying member at a predetermined space, an insulating magnetic developer containing 10-50% by weight of magnetic toner particles 20-35 microns in size being carried on the developer carrying member in a thickness thinner than the predetermined space, and transferring the insulating magnetic developer to the electrostatic image bearing member in the presence of a magnetic field.According to this process for development, there can be produced developed images of high fidelity, high density and high resolution and free from fog.
摘要:
Apparatus for fixing a toner image on a support by pressing and heating it. To heat the toner image, the apparatus comprises first heating means for heating it with transmission or convection heat and second heating means for heating the same with radiation heat. A detecting means detects the temperature of the first heating means and in accordance with the detected information the second heating means is controlled so as to maintain the thermal condition for fixing in a constant and stable state with improved thermal efficiency.
摘要:
Electrophotographic photosensitive member characterized by a photoconductive layer which comprises polymers containing vinylcarbazole unit as a repeating moiety and arsenic and/or antimony chalcogen compound, said chalcogen compound being present in an amount of 1 to 30 volumetric parts per 100 volumetric parts of the polymer.