Abstract: According to one embodiment, first and second branch paths of a decoloring apparatus are formed downstream in a sheet conveying direction of a reading section in a conveying path. A diverting section is provided at a branch point of the first and second branch paths in the conveying path. A control section determines on the basis of image data whether decoloring processing should be applied to a sheet, diverts, if determining that the decoloring processing should be applied to the sheet, the sheet to the first branch path with the diverting section, and diverts, if determining that the decoloring processing should not be applied to the sheet, the sheet to the second branch path with the diverting section. A decoloring section is provided between the reading section and the branch point in the conveying path and heats the sheet to decolor an image formed with a decolorable color material.

Abstract: An apparatus includes a conveyance unit configured to convey a document, a first detection unit configured to detect a first deviation amount of the conveyed document by a leading edge of the document, a first correction unit configured to correct deviation of the conveyed document if the first deviation amount is larger than a predetermined value, an input unit configured to read the document the corrected deviation and to input image data, a second detection unit configured to detect a second deviation amount of the conveyed document by a trailing edge of the document, and a second correction unit configured to correct deviation of the document included in the input image data if the second deviation amount is larger than a predetermined value.

Abstract: The invention relates to a method for contacting a flexible sheet to a first element with improved lateral alignment. The method includes a step of measuring a first lateral misalignment after establishing a first contact between the flexible sheet and either of the first element and a sheet parking surface called anchor in the first stage. If the 5 misalignment exceeds a predetermined threshold the flexible sheet is parked at the anchor such that it is not in contact with the first element, and the relative position of the first element and the anchor is altered during the second stage for correcting the mismatch during a contact between the flexible sheet and the first element to be established within the next step of the method. During the steps of shifting the contact point to obtain the second stage 10 the contacting process is more accurate and reproducible than the process for establishing the initial contact.

Abstract: A sheet feeding apparatus which includes a sheet loading tray for stacking sheets; a suction and conveyance section which is placed above stacked sheets on the sheet loading tray and sucks and conveys a sheet in the sheet conveying direction; an air blowing section which blows air at the stacked sheets on the sheet loading tray and causes the sheet to float up; and a skew correction section which corrects a skew of the sheet conveyed by the suction and conveyance section.

Abstract: A sheet feeding device includes a loading tray configured to receive a plurality of sheets thereon; a sheet transporting unit which transports the uppermost sheet among the sheets to an image forming unit; a blowing unit which blows air to one end portions of the sheets to lift the end portion of the uppermost sheet to separate the sheets from each other; a rear end regulating member which is disposed behind the rear ends of the sheets; and side end regulating members which are disposed next to both side ends of the sheets. A portion of the side end regulating members at which the side end regulating members come in contact with the sheet is provided with an emission portion allowing air to be emitted from the blowing unit.

Abstract: A continuous paper feeder for supplying paper to be folded to a paper folding machine is provided. The continuous paper feeder includes a conveyor, a guide, a blower for introducing air between sheets of paper to be supplied to a paper folding machine, and a sensor for controlling the output of the air. The guide includes opposing first surfaces and second surfaces and a plurality of apertures communicating between the first surface and the second surfaces. The blower is adapted to introduce air through the apertures located on the guide as an operator is loading a stack of paper to be folded onto the conveyor surface.

Abstract: Disclosed is a shape forming device for use with dies to provide cut, punched and embossed objects made from a variety of media. The shape forming device includes a housing that contains at least one pair of rollers oriented substantially parallel to one another, a power supply, electrically connected to the pair of rollers to drive their rotation so as to permit the feeding of a die between the rollers.

Abstract: A sheet-processing machine, such as a printing press, includes a device for generating pneumatic forces, such as pressure or negative pressure, at consumers. A pneumatic pressure generator is disposed directly at the consumer to minimize lag times between the generator and the consumer.

Abstract: An apparatus for feeding sheets to a sheet processing machine smoothes out and fixes a sheet through the use of a suction groove disposed transversely relative to a sheet transport direction, before the sheet is gripped by an onward transport device. A sheet-fed rotary printing press having the apparatus is also provided.

Abstract: An object tracking and motion control system includes a thermal marking unit such as a laser for inducing localized thermal indicia on objects. A thermal tracking unit, typically a micro electro mechanical system (MEMS) such as a two dimensional thermal sensing array, is positioned to measure movement of objects marked with localized thermal indicia. A motion control unit is connected to the thermal tracking unit to permit adjustment of motion of objects marked with induced localized thermal indicia based on their measured movement.

Abstract: A tractor nozzle device for fast running sheet feeders is distinguished in that rubber-metal bushings (66, 72) are provided for the bearings between the support bridge and the rocker as bearings for the mutual absorption of the back-and-forth movements (44) as well as the additional deflection movements (106).

Abstract: A side edge alignment system for pre-aligning side edges of sheet stock prior to feeding them into a printing press employs a sheet engaging vacuum suction member driven reciprocatingly across the feed path of the press. As the member travels towards a side alignment stop the engaged sheet is aligned upon engaging the stop. The suction level is adjustable so that the suction member disengages to slide over the top surface of the aligned sheet after engagement with the side alignment stop. Suction is terminated before the return stroke of the suction member. For stack feeding operations the side alignment stop is configured as a rail having planar upper and lower vertical wall surfaces, the upper being offset away from the suction member. Initial stack alignment is secured by lower elements of the stack engaging the lower face of the side alignment stop, leaving upper sheets at a standoff distance from the upper stop surface.

Abstract: The intermediate tray of a copying machine for copying on both sides of recording paper or recording paper feeding apparatus incorporates a mechanism for loosening and separating recording papers by air blow in order to prevent duplicate feed. Conventionally, such constitution could not be commonly applied to recording papers of plural sizes, and the recording paper vibrated due to the air flow to give off a loud noise. In the invention, the air flow is formed by plural nozzles arranged in the widthwise direction of the recording paper, and the nozzles near the both ends are controlled by opening and closing depending on the paper size. When the recording paper is conveyed by vacuum attracting to the belt, the recording paper is attracted closely to the belt, eliminating the space for allowing the air flow to enter in, so that vibration may be prevented.

Abstract: A sheet supply apparatus supplies a sheet such as an X-ray sheet film from a cassette to a recording device. The sheet supply apparatus has at least a pair of rollers for gripping and feeding a sheet, a feeding mechanism for feeding a sheet from a storage cassette and supplying the sheet along a feed path to the pair of rollers, a tilt correcting mechanism having for correcting the sheet out of a tilted condition with respect to a direction transverse to the feed path, and a position correcting mechanism for displacing the pair of rollers in the direction while the pair of rollers is gripping the sheet, to correct the sheet positionally with respect to the direction. The feeding mechanism has suction devices movable into the feed path for attracting the sheet under vacuum, and the tilt correcting mechanism has at least a pair of stoppers movable into the feed path for engaging a leading end of the sheet to correct the sheet out of the tilted condition.

Abstract: Sheet feeder for a printing machine includes a receiving device adjustable in height for taking up a pile formed of individual sheets, a front stop for leading edges of the sheets, and at least one side stop for the side edges of the sheets at one side of the pile; alignment elements located at least at an upper end of the pile and exerting alignment forces on the pile towards the front and the side stops; a loosening device for neutralizing, at least partly, adherence of the upper sheets to one another; a conveying device for withdrawing the respective uppermost sheet from the pile and feeding it into the printing machine; and an additional sheet alignment device acting upon the surface of the respective uppermost sheet, at least until it is taken over by the conveying device, in a way that the alignment device exerts alignment forces upon the sheet towards at least one of the stops; the additional sheet alignment device being offset with respect to the conveying device towards respective trailing edges of t

Abstract: Apparatus for coupling a tool to a rotating spindle comprises a support in which the tool may be accommodated in a position to be fitted into a spindle cavity. Engagement between the rotating spindle and the tool imparts rotation to the latter. The tool is subjected to a subsequent retardation to effect relative rotation between the tool and the spindle in such manner as to actuate a latch and secure the tool to the spindle.

Abstract: A mechanism for transporting and positioning printing plates in a processing unit comprising a plate holder for storing printing plates which are to be transported to an exposure table, said plate holder being pivotable between a horizontal position and a vertical position and abutting a pair of roller guides when it is in its vertical position, a horizontally displaceable suction means for grasping the foremost printing plate of a supply of plates in the plate holder by its uncoated reverse side, and for transporting the printing plate to a position above a gripping device, and opposed positioning means arranged above this gripping device, at least one of these positioning means being displaceable toward the other to position and maintain a printing plate in a predetermined desired position.

Abstract: Disclosed is a device for transporting printing plates, having one coated and one uncoated surface, stacked in a holder to an exposure and developing station and for positioning them, comprising a holder for holding a plurality of printing plates stacked in alternating relationship with a plurality of separating sheets and a device for selectively positioning the holder substantially perpendicularly to the direction of transport of the printing plates so that the uncoated surface of each printing plate faces toward the direction of transport. A suction device engages the uncoated side of the first printing plate from the stack in the holder, and a device, movable horizontally in the direction of transport, is provided for transporting the suction device between a first position adjacent to the holder and a second position displaced from the first position in the direction of transport, to withdraw the engaged printing plate from the stack.