Abstract: In an image forming apparatus, a nip roller group for pressing a face of a conveyance belt on which a recording medium is held includes a pair of first end pressing parts which are arranged in the width direction of the conveyance belt at a distance corresponding to the recording medium having a predetermined size, and a first center pressing part which is arranged between the pair of first end pressing parts. Herein, a pressing force of the first center pressing part is set to be smaller than pressing forces of the first end pressing parts.

Abstract: A slide feeder, a slide system and a slide feeding method are disclosed. Conventional slide feeders are incapable of feeding the same slide mounts repeatedly to an external appliance with no help by a human hand, accordingly are unsuited to a scanning work at a high speed and incapable of separating slides stably at a feeding time. To overcome these problems, the present invention comprises feeding slide mounts stocked in a first slide stock section to an external appliance and stocking slide mounts discharged from the external appliance into a second slide stock section in a first operation mode, and feeding and stocking the slide mounts reversely in a second operation mode. Furthermore, the slide mounts are carried in a feeding direction with a rotating force of a roller. Moreover, the slide mounts are separated with a separating pad at a feeding time.

Abstract: An image input system includes an image input device for reading image information from a source document and a feeder for automatically inserting the source documents into the image input device. The feeder includes a loading magazine storing source documents and an adjacent discharge magazine storing source documents discharged from the image input device. The source documents travel along a transport surface within the feeder. A dividing board controls the position of the source documents within the feeder. Detectors are provided to monitor the loading operation. A method of reading image information using the image input system is also disclosed.

Abstract: A system for the display of transparencies including a first transparency receiving tray, a second transparency receiving tray, and a staging system connected at one end to the first transparency receiving tray and at the other end to the second transparency receiving tray. This staging system includes a transfer belt extending across a staging area so as to move a transparency across the staging area, a motor drivingly connected to the transfer belt so as to selectively rotate the transfer belt in various directions, and an actuating guide positioned adjacent to the first transparency receiving tray so as to direct the transparency from the first tray to the transfer belt. A controller is connected to the motor so as to actuate the motor for moving a transparency across the staging area in a desired direction. A lift plate is mounted in the receiving trays so as to support a plurality of transparencies thereon.

Abstract: A device for loading photographic transparencies into a magazine having transparency slots, said device comprising a chamber adapted to contain at least some of the transparencies, a feeder means for transferring one of the transparencies from the chamber to one of the slots in the magazine via a feeder gap and a slot positioning means for positioning the slot in alignment with the feeder gap.

Abstract: An overhead projector for projecting images contained on media. The projector includes a housing having first and second image media storage cassettes and a platen which moves between those cassettes. A lifter is mounted between the cassettes for lifting the media from the first or second cassette onto the platen for projection. The lifter includes a lifting drive and a media gripping device. An image projector is movably mounted to the housing and positionable over the first or second cassette to project an image from media positioned on the platen to a view area. The projector includes a movable arm containing an illumination source, mirror and lens. Image media contained in a cassette can be sequenced from that cassette to the other by lifting onto the platen, from the cassette, projected and deposited in the other cassette either manually, remotely, automatically, or semiautomatically.

Abstract: A film slide feeder serially translates each slide from a feed hopper through a slide tray extending through imaging equipment to a receive hopper for duplicating, digitizing or superimposing the image presented by each slide to the imaging equipment.

Abstract: A system for facilitating the handling of overhead projector transparencies on an overhead projector of the type including an upwardly facing projector platen. The system includes a frame assembly to provide a support surface adjacent the projector platen. A transparency storage cassette is supported on the support surface in alignment with the projector platen and generally includes a housing defining a closed chamber. An upwardly biased follower plate is mounted within the chamber to support a stack of transparencies. A door allows loading of the transparencies into the chamber. Between the door and the follower plate is a cam arrangement to move the follower plate downwardly against the bias when the door is moved to an open position to thereby facilitate the loading of the transparencies into the chamber.

Abstract: A slide magazine of a slide film printing system is provided with frame members each provided with slide film chambers in which slide films are stored respectively so as to be fed successively to the printer and which are provided with addresses respectively corresponding to the slide films stored therein. The slide magazine is also provided with a memory so that printing information for the slide films in the chambers will be stored in the memory in accordance with the addresses and the memory is operatively coupled to a printer of the printing system.

Abstract: An image projection system having a built-in mechanism for changing unframed transparencies comprises a frame, a source of illumination, a projection lens, a stage mounted to the frame for positioning a transparency thereon for view, delivery means for gripping and slidingly moving an unframed transparency along the surface of said stage, a magazine holding a stack of unframed transparencies for insertion into the frame adjacent to said stage, feed means for feeding the uppermost transparency from a stack of transparencies in the inserted magazine, and suitable drive means. A second magazine and second feed means can be included in the system for bedirectional changing of unframed transparencies. An electrical logic circuit interfacing with a control module can be included in the system for control. The mechanism for changing unframed transparencies can be isolated and built in a detached unit for use with a conventional image projector which does not have such a built-in mechanism.

Abstract: A computer-controlled slide previewer, sorter, projector tray loader and archiving system. Slides are held in a stack in a hopper in a known sequence. A slide release mechanism is provided to deliver one slide from the stack of slides to a position over one of a plurality of sorting bins or compartments of a projector tray. An accession number is derived for each slide either from a number read from a label affixed to the slide or from the relative position of the slide in the hopper. This accession number is transmitted to a sorting logic. In accordance with a sort algorithm using the accession number, the sorting logic positions the appropriate bin or compartment to receive the slide. The sorting logic then activates the release mechanism to deliver the slide into the bin or compartment positioned to receive the slide.

Abstract: Disclosed is a sheet handling device comprising an unprocessed sheet material storage box, a processed sheet material storage box located therebelow, and a suction device which may be telescopically moved between the sheet material storage boxes and a work table onto and from which the sheet material is to be fed and taken out by means of suction cups provided on the lower surface of the suction device. To keep the state of the sheet material in transit under control, a plurality of nozzles are provided along the suction cups for blowing air along the sheet material. Since the two sheet material storage boxes are arranged one over the other and there is no rail extending over the work table, very little floor space is taken up and the work performed on the work table is not hindered by the sheet handling device.

Abstract: The invention relates to a parallelepipedic tray intended to accommodate slides (7) which are to be viewed. The tray mainly comprises an upper wall (1) and a lower wall (2) each of which has grooves (6). The slides can be inserted in or removed from the tray via either of two open side surfaces, and to prevent the slides from dropping out when the tray is being handled, the tray has two flaps (8 and 9). Such a tray can be used on a slides viewer which has two carriages (22 and 23) to support and guide the trays, which carriages are disposed symmetrically on either side of optical system (28).

Abstract: The invention relates to a slide projector with automatic slide changer and stationary slide magazines (10,11) on each side of the optical pathway of the projector, the respective slide magazine (10,11) provided in the shortside with a feed and discharge opening for slide frames (8) which is located in the focal plane of the slide projector. Between the slide magazines (10,11) a slide frame transport device is located, which consists of two toothed belts (2,3) provided with external dog members (7) for transporting the slide frames (8) from one slide magazine (10) to the other (11), and vice versa. In the projection position of the slide projector support members (12,13 and, respectively, 16,17) facing to the toothed belts (2,3) are provided for the slide frames (8). Levers (20,21) are provided behind the toothed belts (2,3) directly in front of the respective slide magazine (10,11) for inserting the slide frames (8).

Abstract: A device for transporting a plurality of slide film mounts in either direction between a pair of magazines in a slide film projector comprises a pair of endless mount-driving belts, each of which has a stretch adapted to run across the open end of each magazine in close contact therewith and at least a pair of spaced mount-catching stepped shoulder portions formed in the belt surface facing the open ends of the magazines. In operation from a starting position, each belt is driven by actuating a starting button so that a mount, if engaged by a shoulder portion, is received in one of the magazines by the movement of that shoulder portion of the belt, and, thereafter, one of the mounts housed in the other magazine is caught by that shoulder portion of the belt and moved out of that other magazine toward the film projection gate, stopped, and held thereat for projection so as to complete a cycle. Continuous operation may be effected manually or automatically by a control circuit.

Abstract: A cassette, cartridge, box or magazine for storing and projecting transparencies or slides as well as a viewer or projector, the cassette and the viewer or projector matching each other. Said cassette having two compartments for stacks of slides and a structure connecting said compartments and being provided with a passage for moving the slides one by one from the bottom of one compartment to the other compartment and preferably from the top of the last named compartment to the first named compartment through a second passage. The connecting structure being adapted for attachment to a projector or viewer with a slide in said passage being arranged between a light source and a focussing lens. The viewer or projector being provided with means for pushing the slides one by one from one compartment through the passage into the other compartment.

Abstract: A device for transporting slides in a horizontal plane to be projected by a slide projector. More particularly, a retaining means adapted to tolerate bowed slides by having clearance grooves for receiving the bowed slides and for permitting same to set level thereupon.

Abstract: An optoelectronic communications system in which the transmitter has controlled pulse train duration, pulse rate and pulse width, and a receiver which is sensitive to the pulse rate of the transmitter. The transmitter is incorporated into a firearm replica for a shooting gallery and the receiver is a target displaying a visible light source which is extinguished for a predetermined time period when energy from the transmitter strikes the target.