56results about How to "Avoid smudging" patented technology

The invention discloses a device for airing articles like blankets. The device is characterized in that a cross rail is provided with clips; the cross rail is connected with the upper part of a tubular vertical shank through a longitudinal rail; the outer wall of the upper part of the vertical shank is provided with a short vertical bar; the top part of the short vertical bar is flush with the top part of the vertical shank; the short vertical bar is provided with a rotatable hook; a liftable straight bar is arranged in the inner cavity of the vertical shank; the top part of the vertical bar is connected with a supporting fork; the supporting fork is located above the vertical shank; the supporting fork is cambered; the bottom part of the straight bar is provided with a vertical spiral spring; the spring is located in the inner cavity of the vertical shank; the bottom end of the spring is connected with a locating ring; the locating ring is located in the inner cavity of the vertical shank and connected with the inner wall of the vertical shank; the bottom part of the straight bar is provided with a rope; the rope is located in the inner cavity of the vertical shank; the rope is connected with a screw cap after downwards passing through the spring and the locating ring; the screw cap is located in the inner cavity of the vertical shank below the locating ring; a vertical seam is formed in the tube wall of the vertical shank below the locating ring; the bottom part of the seam is in the shape of the hook; the seam is provided with a screw with a handle; the head part of the screw is connected with the screw cap after entering the inner cavity of the vertical shank through the seam.

Guide ribs have curved inversion / transfer surfaces from an inversion start point corresponding to a first transport surface to an inversion end point corresponding to a second transport surface.

A constant current output is applied to a backup roller or a secondary transfer member, and a cleaning bias is controlled according to a measurement obtained by monitoring a voltage generated at that time. Cleaning biases of a plus polarity and a minus polarity are alternately applied to the backup roller to recover the toner adhered on the secondary transfer member to an intermediate transfer belt. The cleaning bias is controlled according to the combined resistance of a secondary transfer section which is varied with not only the environment of an image forming apparatus, but also the condition of use and various factors to recover the toner adhered to the secondary transfer member to the intermediate transfer belt without fail, thereby preventing smudges on the back of a sheet of paper or smudges on images.

A turn guide is disposed between a first transport surface and a second transport surface on which a sheet is transported while being sucked. The turn guide has a plurality of guide ribs. The plurality of guide ribs have curved inverting transfer surfaces from an inversion start point corresponding to a first transport surface to an inversion end point corresponding to a second transport surface.

A fixing unit includes a heat roller and a pressing roller that comes in pressure contact with the heat roller, and passes the recording paper with an unfixed toner image formed thereon through the nip between the heat roller and pressing roller to thereby fix the toner image to the recording paper by applying heat and pressure thereto. A cleaning device for removing the toner remaining on the heat roller or pressing roller in the fixing unit includes cleaning rollers made of metal arranged in press-contact with the heat roller and pressing roller, the peripheral surface of the cleaning rollers being formed with projected and indented shapes to thereby remove the leftover toner appropriately.

The invention relates to an oblique wedge telescopic type stainless steel mobile climbing ladder. According to the climbing ladder, frames comprise fixing sleeves, connecting plates and springs, wherein the four fixing sleeves are respectively and fixedly arranged at four corners of a ladder frame through the connecting plates; ejector rods are fixedly arranged on the upper parts of casters; the springs penetrate through the ejector rods; the inner side of the bottom of the ladder frame is provided with a slide block fixing rack; four corners of the slide block fixing rack are respectively provided with oblique wedge type slide blocks; the bottoms of the oblique wedge type slide blocks respectively serve as a lifting plane, a transition inclined plane and a downward pressing plane; two side walls of each fixing sleeve are respectively provided with a first chute in an oppositely-penetrating manner; the oblique wedge type slide blocks are movably arranged in the first chutes; the bottom of the rear side of the ladder frame is provided with a U-shaped pull rod; and the bottom ends of two side rods of the U-shaped pull rod are respectively arranged on the ladder frame in a hinging manner. The action of an oblique wedge telescopic mechanism is controlled through the pull rod, and the climbing ladder is easy and convenient to move, fix and operate.