Abstract: Disclosed herein is a negative film accumulating apparatus for accumulating therein a plurality of negative films successively fed from a photographic printer or the like. The negative films fed from the previous process such as the photographic printer or the like are placed on a supporter employed in the negative film accumulating apparatus. The rear end of each of the negative films is pressed in the film thickness direction by a pressure block. Each of the negative films thus pressed is accumulated in a holder. The pressure block presses against the negative films each time the negative films are successively delivered. It is therefore possible to accumulate the rear ends of the negative films in the holder in a stack.

Abstract: The present invention provides a sheet supply apparatus comprising a lifter device for maintaining a height of an upper surface of a sheet stack supported by a sheet supporting device substantially constant by lifting or lowering the sheet supporting device, and a supply device for feeding out an uppermost sheet from the sheet stack maintained in a constant height position by the lifter device, and wherein the lifter device comprises a clutch member for transmitting a predetermined amount of rotation from a drive gear, a rock member for rocking a ratchet pawl by the rotation transmitted by the clutch member, a ratchet gear engageable by the ratchet pawl and rotated by a rocking movement of the ratchet pawl, a lifter member connected to the ratchet gear and adapted to lift the sheet supporting member by rotation of the ratchet gear, and an actuation device shifted in accordance with the height of the upper surface of the sheet stack rested on the sheet supporting device and adapted to actuate the clutch member

Abstract: A sheet post-processing apparatus includes bin trays for stacking sheets; sheet discharger for discharging sheets to the bin trays; an aligner for aligning the sheets received by the bin trays by urging them; a controller for controlling the aligner: wherein the controller moves the aligner to a first position for a first alignment and to a second position for a second alignment to provide offset between succeeding sets of sheets received by the bin trays.

Abstract: An automatic paper feeding apparatus is designed to separate and feed originals by means of a separation pad and a feeding roller. A pressure sensitive conductive rubber is used for the separation pad to convert a change in thickness of an original into an electrical signal, thereby detecting a conveyed state, e.g., a multiple paper-conveying error, of the original.

Abstract: A paper conveying device for overrunning paper from a stop position and then, switching the paper back to stop the paper in a stop position. The driving of a paper conveying section for conveying paper is stopped at the time point where the rear end of the paper reaches the stop position. Thereafter, the amount of overrun of the paper is detected, so that the paper is switched back by the amount. Consequently, the amount of overrun and the amount of switchback of the paper are suppressed to the minimum amounts required. In addition, the stress applied to the paper is reduced, and the paper is set in a short time.

Abstract: Device for guiding a sheet having a leading edge which follows an imaginary conducting surface along a sheet-transport direction perpendicular to the leading edge, the sheet-guiding device being formed with a sheet-guiding surface spaced from the imaginary conducting surface, and having equipment for generating a plurality of air jets for applying an air flow to the sheet between a surface of the sheet and the sheet-guiding surface, the generating equipment being formed of respective flow channels for the air jets disposed at an angle to and merging with the sheet-guiding surface, includes an integral guide plate having a surface constituting a predominant part of the sheet-guiding surface, the integral guide plate being formed with perforations, the air-jet generating equipment being formed of blast-air nozzles having blast-air nozzle end faces constituting a remaining part of the sheet-guiding surface complementing the predominant part of the sheet-guiding surface to form the entire sheet-guiding surface, t

Abstract: A combination is provided on a feeder table of a sheet-processing machine, which includes a front lay member cyclically swivelable about an axis, in accordance with a sheet-conveying cycle, and a leading-edge stop for effecting an alignment of paper sheets, the leading-edge stop being disposed on and swivelable with the front lay member out of an alignment position, into a rest position and back into the alignment position, the leading-edge stop including an adjustment device for adjustably fastening the leading-edge stop in a respective position thereof in a conveying and counter to a conveying direction, respectively, of the paper sheets with respect to the front lay member in the alignment position of the front lay member for engaging and disengaging the alignment of the paper sheets by the leading-edge stop.

Abstract: Apparatus for shingling a plurality of documents disposed in stacked relation so that the stack extends successively from a first end to a second end, and has at least one boundary defined by substantially coplanar marginal edges of the documents. The stack of documents is conveyed along a predetermined path during which one or more rotatable shingling members engage the coplanar marginal edges of the documents and impart velocity components of progressively increasing magnitude to the marginal edges in a manner to effect movement of the documents into a shingled array. In the preferred embodiments, the rotatable shingling member has a conical shingling surface traversed by the documents in tangential relation so that the velocity components imparted to the marginal edges of the documents lie in the planes of the documents and move them laterally in shingled relation to each other.

Abstract: A cloth pick-up apparatus is used which comprises pressing mechanism for a pressing one end of the top cloth piece from the upper side, a catch roller having on a part of its circumferential surface catch needles and movable toward and away from the other end of the top cloth piece, the catch roller being adapted to be driven for rotation to feed the top cloth piece in a direction remote from the pressing mechanism, a feed roller rotatable in timed relation with the catch roller, and a pressure roller movable toward and away from a cloth-piece-feed surface of the feed roller and rotatable in cooperation with the feed roller. The catch roller is rotated touching one end of front face of the cloth pieces with the other end of the cloth piece pressed by the pressing roller so that the upper most cloth piece is caught by the catch needles and, at the same time, is raised.

Abstract: A paper sheet accumulator for receiving sheets of paper from an upstream, horizontal conveyor. The accumulator includes: a housing; an accumulation deck secured to the housing: an upper, accumulation roller operatively connected to the housing, the roller being located at the upstream end of the deck; a lower, accumulation roller below and contiguous with the upper, accumulation roller, the lower roller being operatively connected to the housing; and a device to provide a vacuum adjacent the lower, accumulation roller and the upstream end of the accumulation deck.

Abstract: A recording paper sorting and discharging device designed to improve the construction of copiers, printers, or the like, in sorting, separating and discharging paper in which the ends of one side of a pair of paper discharging roller shafts are shifted in a direction essentially parallel to a recording paper discharging direction while the other ends of the shafts remain stationary. The paper discharging roller shafts each have at least one roller, the rollers being separated from each other for a given period of time and, in response to detect signals, the rollers disposed on the shafts then contact each other. The recording paper can thereby be discharged obliquely onto a paper discharging tray. Alternatively, a pair of paper discharging roller shafts, each shaft having both a drive roller fixed on one side thereof in an axial direction and a driven paper discharging roller rotatably mounted on the other side thereof such that the respective drive and driven rollers on each shaft press against each other.

Abstract: A folder apparatus is disclosed which has at least two side-by-side lead-in tape mechanisms having a left lead-in tape and left exit roller and a corresponding right lead-in tape and right exit roller, the right and left lead-in tapes forming a signature passage for delivery of a signature, and the left exit rollers being at a different height than the right exit rollers. The rollers of the side-by-side tape mechanisms have alternating heights. The exit rollers may be fixed or spring-loaded in the direction of the corresponding roller.

Abstract: A media handling unit is a selfcontained device which is capable of being moved to existing photoplotting structures to transport media sheets from a supply cassette housed within the unit and advanced into the plotter for conducting a plotting operation. The unit also retreives the scanned media from the photoplotter returning it the unit in a light tight environment where the scanned film is deposited onto a collecting tray. The supply of film is provided in a cassette having a semi-cyldrical support surface causing the film to take on a preformed configuration which is generally coincident with the shape of the support surface on the plotter.

Abstract: A device for driving documents having one edge in contact with a reference plane includes a drive roller having its axis perpendicular to the reference plane, and an idle roller pressing a drive document against the drive roller. The axis of the idle roller can be freely tilted in a plane parallel to the plane of the driven document, between two limit positions on either side of a position perpendicular to the reference plane. A spring urges the idle roller against an abutment at one end of its axis to create friction.

Abstract: A catch type sheet tray for accommodating sheets sequentially driven out of an image forming apparatus by catching the leading edges of the sheets. The tray has a transport unit for transporting the sheet driven out through the outlet downward. A holder receives the sheet conveyed by the transport unit by catching the leading edge of the sheet while causing the trailing edge of the sheet to hand down to the outside. A mounting section mounts the transport unit on a portion of the apparatus from which the horizontal tray has been removed. The catch type tray is mounted on the apparatus in place of the horizontal tray.

Abstract: A document feeding apparatus includes a device for successively forwarding sheets accommodated in a state of stacked layer one by one; a transporter for receiving a sheet forwarded by the forwarding device and forwarding the sheet in a predetermined transport direction; a detector for detecting a sheet being transported by the transporter; and a controller for controlling operation of the transporter based on a result of a detection conducted by the detector, wherein the controller positions a rear end of a preceding sheet by transporting the sheet for a predetermined distance after the rear end of the sheet is detected by the detector, and positions a leading end of a following sheet at a predetermined position by transporting the following sheet for the predetermined distance after the leading end of the following sheet is detected by the detector, whereby the rear end of the preceding sheet and the leading end of the following sheet correspond with each other, and thereafter, the two sheets are forwarded s

Abstract: The invention is a take-off apparatus for removing sheets of stock from the bed of a screen printing press where the apparatus accommodates variations in the shape, position and size of the stock and includes a carriage member slidably mounted to a take-off frame which travels from a pick-up point through a drop-off point, and adjustable gripper bars mounted to the carriage member for gripping the stock at the pick-up point and for releasing the stock at the drop-off point. To accommodate variable arrangements of the forward edge, each gripper bar of the invention is adjustable on the carriage member laterally for selective positioning of the gripper bars along and longitudinally for selective positioning of the gripper bars at a forward edge of the stock.

Abstract: A transferring device for feeding a document to a predetermined position and further transferring the document from the predetermined position and an ejecting device for ejecting the transferred document are formed in a simple structure to have the same transfer speeds, so that the document is prevented from being damaged and, further, the ejecting speed can be controlled at will.

Abstract: The present invention provides a sheet supply apparatus with a sheet support for supporting a plurality of sheets, a first sheet absorb unit arranged facing a sheet surface of the sheet stack supported by the sheet support for absorbing the sheet by air suction, a second sheet absorb unit arranged facing a tip end of the sheet stack in a sheet supply direction for absorbing the sheet by air suction and a conveyer for conveying the sheet absorbed to the first and second sheet absorb units. The first sheet absorb unit and the second sheet absorb unit are respectively disposed at positions where the first sheet absorb unit is substantially parallel to the sheet surface and the second sheet absorb unit is inclined relative to the sheet surface. When a sheet stops a feeding unit operates in response to return the sheet to the sheet stack as the sheet is being absorbed by the first sheet absorb unit.

Abstract: A disk-type sheet inverting and stacking system in which a rotatable disk unit includes a receiving slot for having the lead edge of a sheet substrate inserted therein such that rotational movement of the disk unit inverts the sheet and delivers it to a stacking tray. The disk-type inverting and stacking system also includes a passive sheet registration system for restraining movement of a sheet positioned in the receiving slot by providing a reciprocating boss member in a retaining cavity on the disk unit, such that the reciprocating member can be shifted, under the influence of gravity, from a non-operative position extending into the slot with a sheet positioned therein, for applying a normal force against the sheet in response to rotational movement of the disk unit.