摘要:
A conveying guide for conveying a sheet onto which an image has been transferred is made of a synthetic resin having a resistance higher than the resistance of the transfer sheet. The upstream side end of the upper surface of the conveying guide is located sufficiently lower than the position at which the sheet is separated from the surface of the photoreceptor drum. With these arrangements, the charging of the conveying guide due to the friction between the sheet and the guide is prevented, thereby restraining the image quality deterioration.
摘要:
An apparatus for conveying sheet members, equipped with a conveyer guide member that extends from the downstream side of a toner image-transfer position of a photosensitive drum toward a fixing unit and a grounding plate member that is disposed on the lower surface side of the conveyer guide member. The conveyer guide member is made of a material having an electric resistance not smaller than the electric resistance of the sheet member, and the grounding plate member is made of a material having an electric resistance smaller than the electric resistance of the conveyer guide member.
摘要:
A conveying guide for conveying a sheet onto which an image has been transferred is made of a synthetic resin having a resistance higher than the resistance of the transfer sheet. The upstream side end of the upper surface of the conveying guide is located sufficiently lower than the position at which the sheet is separated from the surface of the photoreceptor drum. With these arrangements, the charging of the conveying guide due to the friction between the sheet and the guide is prevented, thereby restraining the image quality deterioration.
摘要:
There is provided a lubricating oil composition that has good friction performance and friction performance durability, and which is unlikely to cause degradation of oil seals made from fluororubbers, and which is particularly useful as an automatic transmission fluid. This lubricating oil composition is produced by adding a phosphorus/nitrogen-containing ashless dispersant of 0.2 to 8 wt % with a nitrogen/phosphorus ratio of 1.5 to 2.8, a friction modifier of 0.01 to 5 wt %, a metal-containing detergent of 0.005 to 2 wt %, and an antioxidant of 0.1 to 5 wt % as additives to a base oil with a lubricating viscosity.
摘要:
A sheet feeder is provided with a sheet accommodating portion, an elevating plate and an inclining mechanism. The sheet accommodating portion includes a bottom plate and a plurality of side plates provided perpendicular to the bottom plate, and can accommodate a plurality of sheets. The sheets accommodated in the sheet accommodating portion are successively fed to the outside from the uppermost one. The elevating plate is movable upward and downward and used to stack the sheets in the sheet accommodating portion. The inclining mechanism inclines the elevating plate such that the front ends of the sheets with respect to a sheet feeding direction are inclined downward during sheet feeding.
摘要:
Disclosed is a sheet transport device for use in an image forming apparatus in which one surface of a guide member and one surface of a first counterpart member define a first sheet transport path, and the opposite surface of the guide member and one surface of a second counterpart member define a second sheet transport path. The second counterpart member is pivotally supported on a main body of the image forming apparatus to be selectively set to a closed position for defining the second sheet transport path and an opened position for exposing an interior of the second sheet transport path. The guide member is pivotally supported on the main body of the image forming apparatus to be selectively set to a closed position for defining the first sheet transport path and a closed position for exposing an interior of the first sheet transport path. The sheet transport device has retaining means for retaining the guide member at the closed position. The guide member is retained at the closed position when the second counterpart member is set to the opened position by the retaining means.
摘要:
A paper feeder comprises a paper-stacking mechanism having a paper-stacking plate on which the papers are to be stacked, and a width-limiting member for limiting the position of the papers stacked on said paper-stacking plate in the direction of width of the papers; a suction/feed mechanism disposed above the paper-stacking mechanism to feed by suction the uppermost paper stacked on the paper-stacking plate; and an air-blowing mechanism disposed on the front side of the paper-stacking means in the direction in which the papers are conveyed and including an air duct extending in a direction at right angles with the direction in which the paper is conveyed, said air duct having plural nozzles for jetting out the air against an upper portion at the front end of the papers stacked on said paper-stacking means, and a fan connected to an end of said air duct. The width-limiting member is provided with a closure member for closing the nozzles located on the outer sides of the width-limiting member, of the plural nozzles.
摘要:
A paper delivery apparatus for delivering paper to a predetermined place by driving a roller support shaft with a the paper coming in contact with roller attached to the roller support shaft. The roller support shaft and the drive shaft are connected to each other between a pair of lateral plates. Bearings are attached to the roller support shaft at both ends thereof and are axially movably supported by bearing support members. The roller support shaft together with the bearings may be readily removed from the bearing support members by moving the roller support shaft or the bearings in the axial direction.
摘要:
A paper feeder comprising an actuator and a sensor mounted on a main body, the actuator being capable of contacting an upper surface of a sheet placed on a bottom plate provided in a sheet tray as the bottom plate is raised, thereby allowing the sensor to detect that the sheet is present. The paper feeder further comprises a through bore formed in the bottom plate for receiving the actuator when a sheet is absent from the sheet tray, so that the sensor may detect that the sheet is absent, and a push-out guide provided on peripheries of the through bore for contacting the actuator in the through bore as the sheet tray is pulled out, thereby pushing the actuator upward out of the through bore.
摘要:
A feeder apparatus arranged on a side of a main body of an image forming apparatus is provided with a top door and a vertical door. The top door is provided in an opening defined above a sheet stacker, and the vertical door is provided in an opening defined on a side of the sheet stacker to enable an operator to replenish sheets inside the feeder apparatus. Switches are provided to detect as to whether the top door or the vertical door is opened. The feeder apparatus is constructed in such a manner that upward movement of the sheet stacker is suspended when the top door is detected to be opened and that upward and downward movement of the sheet stacker is suspended when the vertical door is detected to be opened.