Abstract:
La presente invencion se refiere a un método y un aparato para retraer el limpiador desde una superficie para la formacion de imágenes y prevenir la fuga o derrame del pigmento orgánico. Un aparato y método que describe un limpiador de DESB (es decir de cepillo electrostático doble) en una operacion de pasadas multiples que no solamente limpie el pigmento orgánico desde el fotorreceptor, si no que retraiga desde el fotorreceptor. Los dos cepillos se mueven en forma pivotante alrededor de dos puntos pivote definidos en el alojamiento del limpiador durante el ciclo de retraccion para desacoplarse desde el fotorreceptor durante las operaciones de pasadas multiples. El primer cepillo es movido en forma pivotante hacia arriba y el segundo cepillo es movido en forma pivotante hacia abajo. Una descripcion adicional es el aparato y método de utilizar sellos de plásticos flexibles y deslizantes, delgados, para un ESB doble que tiene alojamientos movibles (por ejemplo que se mueven por medio de levas hacia adentro y hacia afuera). Los sellos previenen la fuga o derrame de las partículas de pimento orgánico desde el alojamiento del limpiador.
Abstract:
An apparatus and method for stopping rotation and retracting a cleaning brush away from contact regions to avoid the occurrence of flat spots or voids in the cleaning brush and prevent toner emissions from the brush as it is retracted.
Abstract:
The method for lubricating a second detoning roll, of a cleaning brush system, having a first and a second detoning roll, rotatingly engaged with a first brush and a second brush, respectively, and with the brushes engaged with a surface, involves removing toner particles from the surface with the brushes, and attracting the toner particles from the first brush with the first detoning roll. The toner particles are removed from the first detoning roll and moved toward the second detoning roll to lubricate the second detoning roll.
Abstract:
Toner removal device for removing residual toner and debris from a charge retentive surface (10) after transfer of toner images from the surface. This device is characterized by the use of a pair of electrically biased detoning rolls (114, 120), one for removing toner from a biased cleaner brush (100) for recirculation and use and the other for removing debris such as paper fibers and Kaolin from the brush. Placement of the detoning rolls is selected so that the brushes are located adjacent natural oscillation nodes of the brush, and closely spaced to the position where the cleaning brush leaves contact with the charge retentive surface. Cleaning blades (150) for the detoning rolls are integrally provided with holders (152) for insertion into receiving slots (154, 156) in the cleaning housing (106). Extrusion sleeves are provided for insertion into toner transport devices for removal for cleaning.
Abstract:
Toner removal device for removing residual toner and debris from a charge retentive surface (10) after transfer of toner images from the surface. This device is characterized by the use of a pair of electrically biased detoning rolls (114, 120), one for removing toner from a biased cleaner brush (100) for recirculation and use and the other for removing debris such as paper fibers and Kaolin from the brush. Placement of the detoning rolls is selected so that the brushes are located adjacent natural oscillation nodes of the brush, and closely spaced to the position where the cleaning brush leaves contact with the charge retentive surface. Cleaning blades (150) for the detoning rolls are integrally provided with holders (152) for insertion into receiving slots (154, 156) in the cleaning housing (106). Extrusion sleeves are provided for insertion into toner transport devices for removal for cleaning.
Abstract:
PROBLEM TO BE SOLVED: To properly control a positional error being relative to the position of a photoreceptor by fitting a photoreceptor backer and a cleaning or a spot blade to a rotary frame rotated with a fixed phtoreceptor backer as a fulcrum. SOLUTION: The cleaning blade or the spot blade 120 is coupled to the facing ends of a blade loading device 121. The blade 120 is fitted to a hard blade holder so as to be extended straight. Besides, the blade holder is fitted to the loading device 121 at an end near to the center of a photoreceptor belt 18 and an end near to the outside. Then, the photoreceptor backer 130 and the cleaning blade or the spot blade 120 are fitted to the rotary frame 140 rotated with the fixed photoreceptor backer 150 as the fulcrum so that the backer 130 and the blade 120 can freely trace the belt 18 by any side surface of the blade 120 between the fixed backers 150 and 152 according to the position of the belt 18.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for automatically measuring the nip width of a cleaning brush to evaluate the cleaning performance of the cleaning brush. SOLUTION: In this method, the nip width (contact area) 115 between the brush 100 and a photoreceptor 10 is automatically measured by using an electrostatic voltmeter or an electronic toner area range sensor 120. In such a case, a nip width measured value is converted into diagnosis information by using a software algorithm or a similar converting method. The diagnosis information is used to warn a field engineer that the life of the brush 100 ends, to adjust the bias of the cleaning brush in order to perform cleaning better, to predict the exchange time of the brush 100, or to correct the interference(BPI) of the brush 100 and the photoreceptor with respect to the insufficient or excessive contact of the brush 100 in various ways such as a diagnostic tool, etc.
Abstract:
PROBLEM TO BE SOLVED: To prolong the life of a cleaning blade used in an electrophotographic marking system. SOLUTION: The cleaning blade 3 is useful in an electrophotographic marking system 1. The system 1 includes a movable photosensitive surface and the cleaning blade 3 in operative configuration. The blade 3 includes an elastomer and carbon nanotubes of the amount at which at least the improved mechanical and electrical properties and thermal conductivity are given to the blade 3. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a toner composition, having particles of small particle size having a preferable balance in development characteristics, transfer characteristics and cleaning characteristics. SOLUTION: The toner composition, containing about 12 to about 25 wt.% of toner particles having the volume average particle diameter of about 2 to about 4 μm and a sphericity of about 0.93 to about 0.98, is prepared by emulsion aggregation method. When the toner particles have sphericity in this range, the toner particles remaining on the surface of the image holding member pass between the contacting portions of the imaging holding member and the contact charger, the amount of deformed toner is small, and thus, generation of toner filming can be prevented so that a stable image quality without defects can be obtained over a long period. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an offset inkjet printer increased in process speed and forming an improved full color high definition composite image.SOLUTION: An inkjet printer includes a plurality of color separation modules 102X. Each color separation module includes an image receiving member 104X, and a print head module 106X configured to eject ink drops on the image receiving member to form a color separation on the image receiving member. The inkjet printer is configured to transfix each color separation on each image receiving member onto a single sheet and to produce a composite ink image on a printing medium after the printing medium has passed by all of the color separation modules in the inkjet printer.