An electrophotographic photosensitive member that can not easily cause charging lines even where it is an electrophotographic photosensitive member employing as a conductive layer a layer containing metal oxide particles is disclosed. Also disclosed are a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member. The electrophotographic photosensitive member has a conductive layer which contains titanium oxide particles coated with tin oxide doped with phosphorus or tungsten.

Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus

Provided is an electrophotographic photoreceptor having a conductive substrate and a photosensitive layer, such that the layer constituting the outermost surface of the photosensitive layer is formed by polymerizing a cross-linkable charge transporting material having a reactive hydroxyl group and a cross-linkable charge transporting material having a reactive alkoxy group, and the ionization potential of the outer surface of the layer constituting the outermost surface is higher by about 0.1 eV or more than the ionization potential of the inner surface of the layer constituting the outermost surface.

Electrophotographic photoreceptor, image forming apparatus, and process cartridge

It is an object to provide an ink that forms an image which is superior in color developability, has high environmental gas resistance, and further has superior bronze resistance. The ink comprising at least a coloring material is wherein the coloring material comprises a compound represented by a following general formula (I) or a salt thereof; the coloring material comprises a compound represented by a following general formula (I) or a salt thereof; and the maximum absorption wavelengths obtained by measuring an absorbance of a liquid prepared by diluting 2,000 times the ink with 90 mass % of N,N-dimethylformamide aqueous solution are respectively in a range of 580 nm or more and 640 nm or less and in a range of 650 nm or more and 700 nm or less; and a ratio B/A of 0.75 or more and 0.90 or less, wherein A is an absorbance at a maximum absorption wavelength in the range of 580 nm or more and 640 nm or less, and B is an absorbance at the maximum absorption wavelength in a range of 650 nm or more and 700 nm or less.

Ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus

A printing process is disclosed which comprises directing droplets of an ink onto an intermediate transfer member to form an ink image, the ink including an organic polymeric resin and a coloring agent in an aqueous carrier, and the transfer member having a hydrophobic outer surface so that each ink droplet in the ink image spreads on impinging upon the intermediate transfer member to form an ink film. The ink is dried while the ink image is being transported by the intermediate transfer member by evaporating the aqueous carrier from the ink image to leave a residue film of resin and coloring agent. The residue film is then transferred to a substrate. The chemical compositions of the ink and of the surface of the intermediate transfer member are selected such that attractive intermolecular forces between molecules in the outer skin of each droplet and on the surface of the intermediate transfer member counteract the tendency of the ink film produced by each droplet to bead under the action of the surface tension of the aqueous carrier, without causing each droplet to spread by wetting the surface of the intermediate transfer member.

Digital printing process

PROBLEM TO BE SOLVED: To provide a colorant which has a good color hue, can form images having high fastness under various using conditions and environmental conditions, and is preferably suitable for ink. SOLUTION: This colorant represented by the general formula (I) [G is a heterocyclic group; (n) is an integer of 1 to 3; when (n) is 1, R, X, Y, Z, Q, and G are each a monovalent group; when (n) is 2, R, X, Y, Z, Q, and G are each a monovalent or divalent substituent, wherein at least one of R, X, Y, Z, Q, and G is a divalent substituent; when (n) is 3, R, X, Y, Z, Q, and G are each a monovalent, divalent, or trivalent substituent, wherein at least two of R, X, Y, Z, Q, and G are each a divalent substituent, or at least one is a trivalent substituent]. COPYRIGHT: (C)2007,JPO&INPIT

Dye, ink, ink for inkjet, inkjet recording method, ink sheet, color toner, and color filter

PROBLEM TO BE SOLVED: To provide a pigment dispersant simultaneously realizing good dispersibility of a pigment and excellent alkaline developability, and to provide a pigment dispersion composition and colored photosensitive composition comprising the pigment dispersant. SOLUTION: This pigment dispersant comprises a graft copolymer having a repeating unit containing partial skeleton of an organic dye in the main chain and a repeating unit containing an acidic group in the main chain and/or grafted chain. The graft copolymer preferably comprises at least a unit derived from one or more kinds of polymerizable oligomers having an ethylenic unsaturated double bond at the terminal and a unit derived from a monomer containing the partial skeleton of the organic dye as units of the copolymer. COPYRIGHT: (C)2003,JPO

Pigment dispersant, pigment dispersion composition and colored photosensitive composition comprising the dispersant

PROBLEM TO BE SOLVED: To provide an ink set capable of recording an image having excellent light and ozone resistance, on a recording medium. SOLUTION: The ink set comprises at least a yellow ink composition, a magenta ink composition, and a cyan ink composition. The yellow ink composition contains as a yellow dye, at least one selected from the group consisting of a compound expressed by general formula (Y-I) and a salt thereof (wherein, G represents a heterocycle group; n represents an integral number from 1 to 3; when n is 1, R, X, Y, Z, Q and G represent each a monovalent group; when n is 2, R, X, Y, Z, Q and G represent each a monovalent or bivalent substituent group, and at least one represents a bivalent substituent group; when n is 3, R, X, Y, Z, Q and G represent each a monovalent, bivalent, or trivalent substituent group, and at least two represent each a bivalent substituent group or at least one represents a trivalent substituent group). COPYRIGHT: (C)2007,JPO&INPIT

Ink set, ink cartridge, inkjet printer, inkjet recording method, recorded matter, and color degradation improvement method

PROBLEM TO BE SOLVED: To provide a cooler which can secure the performance of cooling a rotor heated during rotation. SOLUTION: The cooler 18 applying a coolant is installed in a heated portion in an intermediate transfer belt 14. That is, an application roller 20 applying the coolant is arranged nearer to the downstream side of the belt rotation direction than to a transfer roller pair 36 transferring an ink image to a form P from the intermediate transfer belt 14 by pressurizing and heating and a cleaning blade 46 scraping the coolant from the intermediate transfer belt 14 is arranged nearer to the downstream side of the belt rotation direction than to the application roller 20. COPYRIGHT: (C)2009,JPO&INPIT

Cooler, image forming device, and fixing device

PROBLEM TO BE SOLVED: To obtain a state inside a residence by deciding the state from sensing information of a variety of terminal devices including a residential alarm unit installed in the residence and by reporting it to the outside through a network. SOLUTION: A decision processing unit 50 in a home controller 10 outputs a decision result from a notification unit 30 by deciding an electronic message received from a terminal device such as a human sensor 12, so as to report it from a network adapter 34 to an external terminal device 22 through the Internet 20. The decision processing unit 50 includes a function of a safety confirmation unit 52 for transmitting a safety confirmation mail to the external terminal device 22 on receiving the human detection message from the human sensor 12. COPYRIGHT: (C)2010,JPO&INPIT

Residential control apparatus and residential alarm unit

PROBLEM TO BE SOLVED: To rewrite connection data automatically, easily and accurately in accordance with an actual sensor connection condition SOLUTION: A receiver 10 is provided with: a data management part 96 wherein sensor connection data which are unique to sensors and include types to be transmitted as replies to a retrieval command are stored for each fire sensor; and a data updating part 98 which transmits a type request command to a repeater and writes a type transferred in response to a request for type transfer into a connection data table 120 of a RAM 116 to update the table 120 when receiving a completion response from the repeater The repeater transmits a type retrieval command to a sensor line to acquire types from response up signals of respective fire sensors when receiving the type request command from the receiver 10 and transfers held types to the receiver 10 to update the table when receiving a transfer request of the receiver COPYRIGHT: (C)2007,JPO&INPIT

Kenji Ikeda

Papers

Pigment dispersant, pigment dispersion composition and colored photosensitive composition comprising the dispersant

Ink set, ink cartridge, inkjet printer, inkjet recording method, recorded matter, and color degradation improvement method

Cooler, image forming device, and fixing device

Residential control apparatus and residential alarm unit

Fire alarm equipment