Abstract: A sheet conveying device includes a first roller, a second roller, and a controller. The first roller is configured to rotate in a forward direction for sheet conveyance along a sheet conveying direction. The second roller is disposed downstream with respect to the first roller in the sheet conveying direction and configured to rotate in a forward direction along the sheet conveying direction and in a reverse direction. The controller is configured to control the second roller to rotate in the reverse direction at a timing when a leading end of a sheet that is nipped and conveyed by the first roller reaches a nip of the second roller.

Abstract: A sheet conveying device includes a first roller, a second roller, and a controller. The first roller is configured to rotate in a forward direction for sheet conveyance along a sheet conveying direction. The second roller is disposed downstream with respect to the first roller in the sheet conveying direction and configured to rotate in a forward direction along the sheet conveying direction and in a reverse direction. The controller is configured to control the second roller to rotate in the reverse direction at a timing when a leading end of a sheet that is nipped and conveyed by the first roller reaches a nip of the second roller.

Abstract: A paper feed apparatus. The paper feed apparatus can include a stack of paper, the stack of paper having an uppermost sheet of paper and a second sheet of paper being disposed below the uppermost sheet of paper. A driven pick roller is suitably arranged in contact with the uppermost sheet of paper and is suitably rotatable in a first roller direction to convey the uppermost sheet of paper in a first paper direction. A nip defined by a driven feed roller and a separation roller is suitably disposed downstream from the pick roller, the nip having a gap sufficient for the uppermost sheet of paper to pass through, the gap being sufficient for the separation roller to be in frictional engagement with the second sheet of paper to prevent it from passing through the nip.

Abstract: A sheet conveying device includes a first roller, a second roller, and a controller. The first roller is configured to rotate in a forward direction for sheet conveyance along a sheet conveying direction. The second roller is disposed downstream with respect to the first roller in the sheet conveying direction and configured to rotate in a forward direction along the sheet conveying direction and in a reverse direction. The controller is configured to control the second roller to rotate in the reverse direction at a timing when a leading end of a sheet that is nipped and conveyed by the first roller reaches a nip of the second roller.

Abstract: A sheet conveying device includes a first roller, a second roller, and a controller. The first roller is configured to rotate in a forward direction for sheet conveyance along a sheet conveying direction. The second roller is disposed downstream with respect to the first roller in the sheet conveying direction and configured to rotate in a forward direction along the sheet conveying direction and in a reverse direction. The controller is configured to control the second roller to rotate in the reverse direction at a timing when a leading end of a sheet that is nipped and conveyed by the first roller reaches a nip of the second roller.

Abstract: A system and method for consistent paper movement includes a pick/feed motor configured to rotate a pick/feed roller of a print engine to deliver a sheet of paper to the registration nip of a registration roller. A first sensor and a second sensor disposed in the paper path between the pick/feed roller and the registration roller detect the leading edge of the paper. A controller receives sensor data from the first and second sensors and compares the sensor data with expected times for receiving the sensor data. When the received sensor data indicates that the paper is lagging or leading, the controller calculates a period of time to drive the drive the pick/feed motor at a higher or lower speed to compensate for the lagging or leading of the paper.

Abstract: A system and method for removing residual toner and submicron particles from a photoconductive drum of a toner-based printer includes an electrified cleaner blade that electrostatically attracts residual toner and submicron particles from the photoconductive drum as the photoconductive drum is rotated towards the electrified cleaner blade. An electrostatic charge unit can be configured to apply a suitable electric charge of between ?500 VDC and ?2000 VDC to the electrified cleaner blade. Particles lodged on the electrified cleaner blade can be electrostatically dislodged by temporarily reversing the voltage applied to the electrified cleaner blade. Cycling the voltage applied to the electrified cleaner blade between a positive voltage and a negative voltage is used to improve the action of electrostatically dislodging particles lodged on the electrified cleaner blade. The electrified cleaner blade can apply an initial charge to the photoconductive drum.

Abstract: A system and method for producing a uniform layer of toner on a developer roller of a toner-based printer includes two or more doctor blades that are configured to reduce the amount of toner deposited on the developer roller in successive steps. A first doctor blade reduces the layer of toner to a first depth, and a second doctor blade further reduces the layer of toner to a second depth. A third or subsequent doctor blade can further reduce the layer of toner to a third depth. An electrical charge applied to one or more of the doctor blades produces a substantially uniform charge to the layer of toner on the developer roller.

Abstract: The present invention relates to adjustable base assemblies, systems, and related methods. In particular, the present invention relates to adjustable base assemblies, systems, and related methods that make use of an upper body frame and a seat frame that move relative to a leg frame to improve the contour of a mattress positioned on the adjustable base assemblies.

Abstract: An electronic wireless communication system includes an electronic device with a plug-in circuit card. The plug-in circuit card includes a wireless radio circuit and at least one on-board coaxial connector coupled with the wireless radio circuit. An antenna card includes at least one antenna and at least one on-board coaxial connector. At least one of the on-board coaxial connectors on the antenna card is coupled with a corresponding antenna. Each on-board coaxial connector on the antenna card is also coupled with a mating on-board coaxial connector on the plug-in circuit card.