摘要:
An electrophotographic imaging member containing a supporting substrate having an electrically conductive surface comprising charge injecting material, a charge blocking layer including a water insoluble high molecular weight unmodified hydroxy methacrylate polymer and at least one photoconductive layer, the charge blocking layer having a surface resistivity greater than about 10.sup.10 ohm/sq. This imaging member may be employed in an electrostatographic imaging process.
摘要:
Highly transparent charge injection enabling species for electrophotographic overcoatings include copper (I) compounds dispersed throughout the overcoating or complexed into a charge transport matrix. The overcoatings contain an insulating, film forming continuous phase having charge transport molecules and the copper (I) compounds.
摘要:
An electrophotographic imaging system utilizing a member comprising at least one photoconductive layer and an overcoating layer comprising a film forming continuous phase comprising charge transport molecules and charge injection enabling sites comprising finely divided fullerene particles, the insulating overcoating layer being substantially transparent to activating radiation to which the photoconductive layer is sensitive and substantially electrically insulating at low electrical fields.
摘要:
An image character recognition process comprising: forming an image in a predetermined size and predetermined shape on a receiver member with a marking composition containing a superparamagnetic component; detecting the predetermined size and predetermined shape of the formed image by placing the resulting image bearing receiver member in a magnetic sensing field comprising at least one magnetic sensor and forming a magnetic size and magnetic shape profile map of the detected image; and recognizing the detected image by comparing the magnetic size and magnetic shape profile map of the formed image with reference magnetic profile image maps.
摘要:
Charge blocking materials include a complex or salt of a film forming material containing at least one nitrogen-containing compound, such as an amino, an imino or a tertiary amine group, chelated to a metal ion or atom. The charge blocking materials may be used in a charge blocking layer of an electrophotographic imaging member. The charge blocking materials may be used with transparent conductive layers, for example, comprising cuprous iodide.
摘要:
A process comprising: milling first particles, second particles, and a milling component, wherein the first particles are reduced in average diameter particle size to from about 3 to about 100 nanometers.
摘要:
A magnetic composition comprising nanocomposite particles comprising from about 0.001 to about 60 weight percent of magnetic nanocrystalline particles dispersed in from about 40 to about 99.999 weight percent of a discrete phase matrix, and a continuous phase matrix, wherein the discrete phase resides in interstices within the continuous phase matrix.
摘要:
The invention provides submicron particles. The invention further provides submicron particles which are dispersed in an aqueous colloid. The invention further provides a method of forming the stable dispersion which includes providing an ion exchange resin, loading the ion exchange resin with an ion, treating the loaded resin to form nanoscale particles. The invention further provides fluidizing the resin and particles to form an aqueous stable colloid.
摘要:
Charge blocking materials include a complex or salt of a film forming material containing at least one nitrogen-containing compound, such as an amino, an imino or a tertiary amine group, chelated to a metal ion or atom. The charge blocking materials may be used in a charge blocking layer of an electrophotographic imaging member. The charge blocking materials may be used with transparent conductive layers, for example, comprising cuprous iodide.