Abstract: A device for cleaning a cylinder in a printing machine, the cylinder having a jacket surface with at least one raised element, includes a cleaner engageable with the jacket surface of the cylinder and being rotatable about an axis of rotation for cleaning the jacket surface, the cleaner being formed with at least one recess through which the at least one raised element is able to pass.

Abstract: There is disclosed a cylinder cleaning brush unit including a brush roller for cleaning a cylinder. The cylinder includes an outer surface to which impurities are adhered, the impurities being removed from the outer surface by the brush roller with cleaning liquid being supplied. The brush unit comprises an opening through which effluent is discharged from the brush unit, the effluent including the cleaning liquid and the impurities. The brush unit further comprises a filter installed in the opening, the effluent being filtrated by the filter.

Abstract: A method of cleaning an imaged printing form having a silicone-based non-printing layer, which includes exerting a defined contact pressure by a cleaning arrangement on a printing-form surface to be cleaned, and moving at least one of the printing form and the cleaning arrangement relative to the other, further includes applying cleaning fluid to the printing-form surface to be cleaned, the cleaning fluid, besides water, containing a cleaning concentrate as a component, the cleaning concentrate having 1 to 30 percent by weight of an anionic surfactant and 1 to 30 percent by weight of a nonionic surfactant; and a cleaning fluid for cleaning a printing form.

Abstract: A rotary, multi-bladed cleaner provides increased life expectancy, up to 15-25 times the life of a single blade cleaner. Such a cleaner has been found to be highly reliable due to its ability to frequently change brush surfaces and by provision of a redundant system that enables multiple blades to contact the surface to be cleaned at once. The blade cleaner has a paddle-wheel type cross-sectional shape with a plurality of radially extending blades spaced around the periphery thereof. The blades are spaced to be closely adjacent one another such that one and preferably two or more blades contact the residual image at one time. The rotary blade cleaner is preferably rotated at a slow rotation rate with the blades being in contact for only a limited time before being displaced by the next blade(s). Such a rotary cleaner is particularly suited for cleaning residual toners and inks from a photoreceptive surface.

Abstract: A motion-defect-free assembly and a method of minimizing cleaning apparatus induced motion quality disturbances in a moving belt photoreceptor of a toner image reproduction machine are provided. The assembly for practicing the method includes at least one resilient member located to each side of the moving belt photoreceptor at a desired belt cleaning station along a path of movement of the belt photoreceptor, and a cleaning apparatus that is mounted at the cleaning station and that includes at least one separately moveable cleaning member. The cleaning apparatus also includes a moveable frame having frame locating members, and the at least one separately moveable cleaning member.

Abstract: A high speed copier 10 has a transfer roller 42 and a cleaning brush 52. The cleaning performance is improved when the engagement of the two rollers exceeds a first threshold T1. Their engagement is maintained below a stall threshold T2.

Abstract: A cleaning element (1) for use in the fuser section of electrostatographic reproduction or printing apparatus. The element includes projections projecting from an outer surface to form a pile (5). The cross section of each projection has a cross section having a peripheral dimension and an area. The ratio of the peripheral dimension and area is greater than the same ratio for a projection of circular or substantially circular and equal area of cross section. The projections may be formed by tri-lobal fibres.

Abstract: An apparatus for cleaning a tubular printing blanket, comprises a first end cap mounted to a first end portion of the tubular printing blanket; a second end cap mounted to a second end portion of the tubular printing blanket, a compressed air inlet passing through the first end cap; a compressed air supply coupled to the compress air inlet for supplying compressed air to the inside of the tubular printing blanket for stiffening the tubular printing blanket during a cleaning operation; and a cleaning element which interacts with the outside surface of the tubular printing blanket, for cleaning the tubular printing blanket.

Abstract: The present invention provides a dust remover having a dust removal roller for removing the dust attached on the surface of a dust removal object by coming in contact with the surface of the dust removal object while rotating, and an adhesive tape roller for transferring the dust adherent to an outer peripheral face of the dust removal roller to an adhesive layer of the adhesive tape roller to clean the dust removal roller, while rotating with its outer peripheral face in contact with the outer peripheral face of the dust removal roller. An outer peripheral layer of the dust removal roller is made of a non-silicone elastic body, and a difference &Dgr;&dgr; between a solubility parameter (SP value) &dgr;A of the non-silicone elastic body and a solubility parameter (SP value) &dgr;B of an adhesive applied on the adhesive layer of the adhesive tape roller is 1.0 [J/cm3]½ or greater.

Abstract: A cleaning apparatus that cleans an image bearing member on which a toner image is formed, includes first and second brushes which are rotatable and remove toner by abutment against the image bearing member, wherein the first and second brushes rotate in counter directions, a container for containing the toner removed by the first brush and the second brush, and a rubbing member that rubs both of the first brush and the second brush.

Abstract: A cleaning device, being part of a copying or printing system, for removing residual developer from the surface of an image-delivering member is described. The device comprises a cleaning brush in rolling contact with the surface of the image-delivering member for removing residual developer therefrom. A biased collecting roller is in rolling contact with the revolving brush. The collecting roller is biased such as to attract the residual developer from the cleaning brush and to collect it onto its surface. A trailing cleaning blade has a forward end portion in frictional contact with the collecting roller. The trailing cleaning blade is in contact with the cleaning roller at a contact position where the collecting roller is moving in an upward direction. Also disclosed is a method for removing developer from a surface of an image-delivering member.

Abstract: A cleaning apparatus for computer pointer devices having a standard ball contacting input rollers has an abradant ball mounted to a rotary shaft in a manner that the abradant ball may be brought into contact with rollers of the pointer device with the standard ball removed, the position of the abradant ball such that rotating the shaft will rotate the abradant ball in a manner that the abradant ball will both abrade and turn the rollers. The cleaning apparatus may be a hand-held device, built into a free-standing housing, or into a housing as a part of another computer housing, such as a computer or display. In some cases there is a variable speed drive with user settable speed, and in some cases there is a vacuuming system for removing abraded matter from a pointer device while cleaning takes place.

Abstract: An apparatus for removing electrostatically charged particles from a surface such as the backside of an image bearing belt of the type found in an electrostatographic printing apparatus or a drive roller supporting an image bearing belt. The apparatus includes an electrically biased foam pad having a conductive substrate and conductive foam material extending outwardly therefrom to contact the surface to be cleaned, a supporting device, and a cleaning device for removing collected particles from the foam pad. The supporting device for the foam pad rotates, thereby causing clean foam material to contact the surface to be cleaned.

Abstract: A transfer roller cleaning apparatus of a liquid electrophotographic printer for removing toner particles and foreign matter remaining on a transfer roller for transferring a toner image formed on a photoreceptor belt. The transfer roller includes a cleaning roller for cleaning the surface of the transfer roller while rotating in contact with a transfer surface of the transfer roller.

Abstract: A cleaning device for cleaning a screen plate used in a screen printing is disclosed. The cleaning device comprises a base structure which can be placed just below the screen plate. A press member, such as a cleaning blade or cleaning roller is carried on the base structure. The press member has a contact portion which contacts a lower surface of the screen plate to scrape off any foreign things from the lower surface when the base structure is moved in a direction parallel with a major surface of the screen plate. In some embodiments, a cleaning paper wet with a solvent is intimately put between the contact portion of the press member and the lower surface of the screen plate to promote the cleaning effect.

Abstract: A sheet cleaning apparatus having sets of cleaning rollers, wherein the rollers are integrated into a removable cartridge structure. Couplers are provided at roller shaft ends to connect to the roller drive. The cartridge is received in a slide carriage, permitting the cartridge to be readily removed from the apparatus by sliding the carriage out, and lifting the cartridge out from the slide carriage. With this arrangement, the down time for the sheet cleaning apparatus is minimized, since the sheet cleaning apparatus can be provided with two cartridges, and the cartridge needing maintenance can simply be quickly removed and replaced with a fresh cartridge. The production line can quickly be put back into operation, and the removed cartridge can be serviced off line for subsequent use.