Abstract: An image bearing member for forming a toner image on the surface thereof characterized in that said surface has a maximum surface roughness of 20 .mu.m or less, and an average surface roughness satisfying the relation of r.ltoreq.2d between the average surface roughness and a toner particle size, wherein r is the average surface roughness; and d is a mean particle size of the toner particles; a contact angle with water at least 70 degrees; or a pencil hardness of F or harder as measured according to the JIS test method K-5400; a process for forming image with said member, and an utility thereof.

Abstract: Photoconductive films contain specified azulenium salt compounds. Electrophotographic photosensitive members are provided with a photoconductive film containing at least one of the specified azulenium salt compounds.

Abstract: A photosensitive member, or image-holding member, for electrophotography having a conductive substrate, a top layer for holding electrostatic image and/or toner image wherein the top layer is formed by applying a coating fluid containing hydrophobic silicon and a binder resin, and the display unit used with the photosensitive member.

Abstract: Photoconductive films contain specified azulenium salt compounds. Electrophotographic photosensitive members are provided with a photoconductive film containing at least one of the specified azulenium salt compounds.

Abstract: A photoconductive film comprises an azulenium salt represented by the general formula (1) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, and R.sub.7 are each independently hydrogen, halo or a monovalent organic residue; or at least one of the combinations of R.sub.1 with R.sub.2, R.sub.3 with R.sub.4, R.sub.4 with R.sub.5, R.sub.5 with R.sub.6, and R.sub.6 with R.sub.7 may form an unsubstituted or substituted aromatic ring; R.sub.8 and R.sub.9 are each independently unsubstituted or substituted alkyl, aryl, or aralkyl; or R.sub.8 and R.sub.9, together with the nitrogen atom to which they are attached, may be joined to form an aromatic ring; R.sub.10, R.sub.11, R.sub.12, and R.sub.13 are each independently hydrogen, halo, alkyl, alkoxy, or hydroxyl; and n is 0, 1, or 2.

Abstract: An electrophotographic process involving charging and exposing to light a radiation sensitive organic thin film comprising a compound which has at least one nucleus of an azulenium salt.

Abstract: An optical recording member having an organic coating film comprising a compound of the general formula: ##STR1## wherein; Z.sub.1 is an atomic group necessary to form a substituted or unsubstituted nitrogen-containing heterocyclic compound ring; Z.sub.2 is an atomic group necessary to form a substituted or unsubstituted pyrane, thiapyrane, selenapyrane, benzopyrane, benzothiapyrane, benzoselenapyrane, naphthopyrane, naphathiopyrane, or naphthoselenapyrane ring; X is a sulfur, oxygen, or selenium; Z.sub.3 is a divalent hydrocarbon residue necessary to form a 5- or 6-membered ring substituted or unsubstituted; R.sub.11 is a hydrogen atom or substituted or unsubstituted alkyl; R.sub.12 and R.sub.13 each are a hydrogen atom, halogen atom, alkyl, alkoxy, aryl, substituted aryl, styryl, substituted styryl, or substituted or unsubstituted heterocyclic residue; R.sub.14 is a hydrogen or halogen atom; A.sup..crclbar. is an anion; m and n each are 0 or 1; and l is 0, 1, or 2.

Abstract: A radiation sensitive organic thin film comprising a compound which has at least one nucleus of azulanium salt.

Abstract: An electrophotographic photosensitive member comprising a photosensitive layer formed by coating of a coating solution containing a photoconductive compound on a electroconductive substrate followed by drying, said electroconductive substrate having a C/.rho. value of 0.250 or less when the heat capacity per unit surface area of said electroconductive substrate is made C cal/cm.sup.2..degree.C. and the thermal conductivity of the material for said electroconductive substrate is made .rho. cal/cm.sec..degree.C.