摘要:
A feeding paper apparatus includes a rod having a fulcrum member thereon, and two pressing unit disposed on the opposite ends of the rod. Each pressing unit has a connecting device disposed on the rod, a buffering device movably and pivotally disposed on the connecting device, and a pressing wheel rotatably disposed on the buffering device. The pressing wheels provide the same component force on the corresponding feeding paper wheel so as to improve the quality of feeding paper. Furthermore, a method for using the feeding paper apparatus is disclosed.
摘要:
A feeding mechanism for feeding a web of paper in a paper handling system includes a feeding nip assembly having a driven roller structured to be rotatably driven about a first axis, and an idler roller structured to rotate about a second axis substantially parallel to the first axis. In addition, the feeding nip assembly is structured to apply a force to the idler roller to push the idler roller toward the driven roller. The force is applied in a direction substantially perpendicular to the first axis and the second axis. The idler roller is also structured to pivot about a third axis substantially perpendicular to the first axis, the second axis, and the direction of the force.
摘要:
A medium discharging mechanism includes a first roller, a second roller, and a resiliently deformable member. The second roller is in pressure contact with the first roller to form a nip between the first roller and the second roller. The resiliently deformable member is formed of a resiliently deformable material and is rotatable about a rotating shaft of one of the second roller. The resilient member has a larger diameter than the second roller. The resilient member deforms at the nip such that a surface of the resilient ring is flush with the nip.
摘要:
A feeding paper apparatus includes a rod having a fulcrum member thereon, and two pressing unit disposed on the opposite ends of the rod. Each pressing unit has a connecting device disposed on the rod, a buffering device movably and pivotally disposed on the connecting device, and a pressing wheel rotatably disposed on the buffering device. The pressing wheels provide the same component force on the corresponding feeding paper wheel so as to improve the quality of feeding paper. Furthermore, a method for using the feeding paper apparatus is disclosed.
摘要:
A sheet post-processing apparatus includes driving rollers that are arranged in a leading end position in a sheet conveying direction of a standby tray and axis of which are perpendicular to the conveying direction and driven rollers that rotate following the driving rollers and are provided in a front portion in the sheet conveying direction of the standby tray such that an interval thereof narrows in the sheet conveying direction. The driven rollers may be arranged in the front in the sheet conveying direction of the standby tray while being spaced apart from the standby tray.
摘要:
A sheet discharge roller assembly for a sheet feeding apparatus includes an upper cylindrical exit roller mounted on a rotatable drive shaft and a lower cylindrical pinch roller having a wheel attached to one end. The pinch roller has a length that is longer than the length of the exit roller and is moveable into contact with the exit roller so as to form a nip for gripping a print media to be discharged. The wheel has a diameter that is larger than that of the pinch roller and an outer circumferential edge composed of a plurality of protruding contact portions arranged in a radial pattern. The wheel is positioned so that the wheel can contact the media sheet being gripped and cause the sheet to deform temporarily, thereby making the sheet more rigid.
摘要:
A sheet post-processing apparatus includes driving rollers that are arranged in a leading end position in a sheet conveying direction of a standby tray and axis of which are perpendicular to the conveying direction and driven rollers that rotate following the driving rollers and are provided in a front portion in the sheet conveying direction of the standby tray such that an interval thereof narrows in the sheet conveying direction. The driven rollers may be arranged in the front in the sheet conveying direction of the standby tray while being spaced apart from the standby tray.
摘要:
The present invention relates to an ejecting roller assembly for use in an automatic document feeder to adaptively adjust the nip force between the follower roller and the driving roller in response to input and output of the paper sheet, there effectively preventing the paper sheet from getting jammed. The ejecting roller assembly includes a swing lever, a follower roller, a friction-generating element and a driving roller. The swing lever is coupled to the follower roller for adaptively adjusting the nip force. The friction-generating element is arranged between the swing lever and the follower roller for facilitating increasing the friction force between the swing lever and the follower roller. The driving roller is used for controlling input and output of the paper sheet.
摘要:
A driven rotary unit for conveying a sheet, includes a shaft member which is rotatably supported by a supporting member, and a cylindrical cylinder member which is attached to an outside of the shaft member, in which an inner diameter of the cylinder member is larger than an outer diameter of the shaft member, and which is disposed to be freely rotatable with respect to the shaft member, wherein the driven rotary unit is rotated by a conveyed sheet.
摘要:
A paper feeder comprises an acquiring device, a driving roller, driven rollers, a driven roller supporter, a driver, and a controller. The acquiring device acquires thickness information on a sheet of paper. The driving roller rotates by being supplied with torque. The driven rollers rotate with the driving roller when in compressive contact with the driving roller. The driven roller supporter so supports the driven rollers that each of them can rotate under a different rotational load. The driver changes the position of the driven roller supporter relative to the driving roller. The controller selects one of the driven rollers on the basis of the thickness information and so activates the driver as to bring the selected roller into compressive contact with the driving roller.