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| Number | Title | Issue Date |
| 7237485 | Print supply monitoring An identification card printer includes a card input, a card transport, a printhead, and a card output. The card transport is configured to feed a card from the card input along a print path. The printhead is positioned below the print path and is configured to prin... | 07/03/2007 |
| 7213987 | Synchronization method and apparatus in a value metering system having a digital print head A manually activated, value-metering system having a method and an apparatus for achieving synchronization, wherein the value metering system uses a digital print head to print a plurality of printed lines, one printed line at a time, on a substrate, which is advanc... | 05/08/2007 |
| 7131778 | Direct thermal barcode printer A direct thermal barcode printer including a print assembly is provided. The print assembly is movably positioned relative to a print media for adjusting printing characteristics of an attached print head. ... | 11/07/2006 |
| 6183406 | Printer tractor paper feeder and ironer A paper stacker for use with a printer which prints connected sheets that are to be stacked in a folded relationship having a surface for receiving the paper with a frame surrounding the paper that is raised in relationship to the paper in order to mainta... | 02/06/2001 |
| 6168332 | Transfer printing station with adjustable-width paper conveyor means A transfer printing station is provided which has two pairs of tractor drives movably arranged side-by-side on two drive shafts. During operation with only a single paper web, the unused tractor drives can be moved to a lateral parking position. The two p... | 01/02/2001 |
| 5847747 | Tractor unit A tractor unit for a recording sheet is provided. A tractor belt is provided with protrusions for engaging with feed holes formed on both sides of the recording sheet. A pulley rotates the tractor belt and a frame supports the pulley. The recording sheet ... | 12/08/1998 |
| 5839841 | Printed device with paper-shift control adaptable to different paper sizes A device for printing on a continuous sheet includes a motor for carrying the continuous sheet, a switching unit for switching a minimum unit of control of the motor depending on a paper size of the continuous sheet, and a position-detection unit for dete... | 11/24/1998 |
| 5816722 | Printer and tractor device therefor A printer allowing attachment and detachment of an external device for improving a paper feed system. The printer allows either an automatic sheet feeder for successively feeding a plurality of cut sheets of paper or a tractor device for feeding a continu... | 10/06/1998 |
| 5808654 | Apparatus for printing graphic images on sheet material having an ink web cassette with constant web tension An apparatus for printing graphic images on sheet material has a thermal print head with a linear array of heating elements pressed into engagement with an ink web overlying the sheet material on a platen. The platen extends in the lengthwise direction of... | 09/15/1998 |
| 5718527 | Paper delivery system A paper delivery system having a printing unit with an upstream tractor and a downstream tractor disposed on an upstream side and a downstream side, respectively, of the paper delivery unit in the direction of paper delivery, a coupler coupling the upstre... | 02/17/1998 |
| 5707161 | Printer with a multiple continuous-sheet processing capability In a printer with a multiple continuous-sheet processing capability, a first pusher tractor unit and a second pusher tractor unit disposed above the first feed continuous sheets from the front of the printer to a printing line along substantially straight... | 01/13/1998 |
| 5692845 | Airline ticket printer with offset drive means An airline ticket printer includes a magnetic reading and writing station that has a read/write head for recording information on, or reproducing information from, a magnetic stripe carried on the ticket. The ticket is driven past the read/write head by a... | 12/02/1997 |
| 5603579 | Paper transfer apparatus and printer using the same A paper transfer apparatus for transferring a recording paper by rotating a first and second sprocket wheels having a plurality of pins to be engaged with sprocket holes disposed on both sides of the recording paper comprising a first paper guide for form... | 02/18/1997 |
| 5516220 | Continuous form printer having adjustable tractors A continuous form printer includes a tractor feed system that adapts to changes in paper width while printing. A tractor body is movable on a shaft, and a movable housing supporting tractor pulleys and a tractor belt is resiliently movable with respect to... | 05/14/1996 |
| 5456399 | Tractor mechanism compensating for paper taper A tractor and a continuous paper feed mechanism using the same which can more accurately convey continuous paper in a forward or reverse paper conveying direction by compensating for an increase or decrease in the width (taper) of the continuous paper due... | 10/10/1995 |
| 5354139 | Paper feed system having mechanisms engaging opposite edges of print paper above and below print station of printer Each of a pair of spaced apart paper feed mechanisms within the paper feed system of a dot matrix line printer has opposite upper and lower portions thereof slightly angled relative to each other and disposed on opposite sides of and close to an elongated... | 10/11/1994 |
| 5248073 | Articulating paper sensor An articulating paper sensor for sensing the presence of continuous paper in a tractor drive assembly for transporting continuous paper along a travel path. The articulating paper sensor comprises a body having a portion including a sensing element for de... | 09/28/1993 |
| 5221150 | Paper feeding apparatus for printers having a bail roller means A paper feeding apparatus for feeding fanfold paper to a printer is provided. A cylindrical platen is rotatably mounted in the printer. A paper feeding tractor is provided upstream from the platen in a paper feeding direction. A power mechanism drives the... | 06/22/1993 |
| 5217312 | Single lever push/pull/park selector for printer forms tractor A single manually operated mode selector lever controls selection of a push, pull or park mode of operation of a form feed tractor in a printer. The lever controls a cam which moves a spring-biased tractor drive shaft axially so that a gear on the drive s... | 06/08/1993 |
| 5188269 | Sheet feeding device having a paper presser plate to which a variable bending moment is applied A sheet feeding device for feeding paper in a predetermined direction while a paper presser plate keeps the paper pressed to a sheet feeding mechanism. The sectional shape of the paper presser plate is modified according to the distribution of a bending m... | 02/23/1993 |
| 5184905 | Device for the transport of paper in printers, particularly dot matrix printers A paper transport device in printers (1), particularly in dot matrix printers, for the feeding of continuous webs (6) by transversely displaceable tractors (7, 8) which are arranged in pairs on the printer frame. The tractor pins (9) engage into the edge ... | 02/09/1993 |
| 5181641 | Tractor feed for perforated webs A tractor feed mechanism combines, in a unitary assembly, components which provide the capabilities of separate, independent, left and right-hand tractors and their support and drive shafts. The assembly has fewer parts than a tractor feed using separate ... | 01/26/1993 |
| 5172843 | Structures of driving and driven sprockets and belt reception rotary member in paper feed apparatus A paper feeding tractor in which perforated paper is fed by a pin carrying feed belt includes a feed belt driving sprocket which is housed between a pair of side frames. Two side faces of an inner circumferential portion of the sprocket body, except an ou... | 12/22/1992 |
| 5165586 | Paper feed apparatus equipped with feed belt supporters A paper feed apparatus including a pair of side frames connected together so as to face one another with a predetermined gap therebetween, an endless feed belt mounted between the pair of side frames, a driving sprocket engaged with the endless feed belt ... | 11/24/1992 |
| 5163593 | Clamper of paper feed tractor A clamp is used for clamping a paper feed tractor to a support shaft at a predetermined distance from another paper feed tractor. The clamp comprises a semi-cylindrical elongated clamp guide member which is cantilevered from a frame of the paper feed trac... | 11/17/1992 |
| 5139355 | Printer with multi-tractor form shuttle A multi-tractor shuttle printer having an array of moveable tractors such that a selected tractor and form can be shuttled into, and out of, position for printing. A drive motor is linked via cable to the tractors to shuttle them into and out of position.... | 08/18/1992 |
| 5139190 | Document feed tractor with height adjustable web support surface A document feed tractor in which pins which drive the paper upon entry into perforations in margins of the paper along the edges thereof are connected to a belt on beams cantilever mounted thereto. A guide and support bar holds the beams and the pins down... | 08/18/1992 |
| 5135148 | Forms feed tractor for a printer A tractor mechanism has an endless pin belt entrained around spaced drive and idler sprockets mounted between a pair of frame members. The idler sprocket is supported by a carrier movable longitudinally by springs to apply tension to the belt. The edges o... | 08/04/1992 |
| 5131578 | Clamper of paper feed tractor A clamp for a paper feed tractor for clamping a paper feed tractor to a support shaft. Such a clamp is used for clamping the paper feed tractor to the support shaft at a predetermined distance from another paper feed tractor which corresponds to a width o... | 07/21/1992 |
| 5123583 | Paper feeder for printers A paper feeder for printers having front and back pin tractor assemblies disposed on opposite sides of a platen roller with respect to the paper feed route. Each tractor has a plurality of pins which are rotatable so as to convey the continuous paper. A r... | 06/23/1992 |
| 5123762 | Split tractor clamp for an impact printer A printer tractor drive assembly is specified having a belt with pins which engage paper which is to be moved across a print station. The assembly includes a split lid covering the paper being driven. One portion of the split lid can be opened to expose a... | 06/23/1992 |
| 5110025 | Paper feeder having a paper exhaustion detector A cover is disclosed for a paper feed tractor having first and second side frames, a paper receiving plate extending perpendicularly from the second side frame and having a hole formed therein, and a paper exhaustion detector mounted to the second side fr... | 05/05/1992 |
| 5108210 | Printer having multiple tractor mounting configurations A printer including at least two tractor unit mounting sections upstream of the print position in the sheet feed direction, and at least one tractor unit can be mounted on either of these tractor unit mounting sections. The sheet feeding direction can thu... | 04/28/1992 |
| 5100251 | Paper tractor mechanism A paper tractor unit is disclosed. The tractor unit which is movably provided for a support member can be selectively moved between a position at which a continuous paper is fed and a position from which the paper is drawn, a paper drawing drive roller an... | 03/31/1992 |
| 5097999 | Form feeding tractor utilizing a composite belt with metal pull pins The drive assembly for a form feeding tractor has a flexible endless belt comprising an endless band member of synthetic resin with a generrally planar outer surface and metallic drive pins spaced about its circumference. The band member has a series of s... | 03/24/1992 |
| 5080514 | Pin-feed apparatus for recording systems The present invention provides a pin-feed apparatus suitable for use in a recording system, including pin-wheels adapted to operatively engage perforations on a sheet to be carried through the recording system, at least one of the pin-wheels being adjusta... | 01/14/1992 |
| 5080272 | Device for improved control in the transport of edge-perforated paper webs in printers A device for the feeding or advancement of an edgeperforated paper web (1) in a dot-matrix printer or the like includes a pair of drive belts (3) transversely spaced apart proximate opposite transverse edges of the web, each belt carrying on its upper sur... | 01/14/1992 |
| 5048739 | Integral frame type paper feeder An integral frame type paper feeder in which perforated paper is fed by a pin-carrying feed belt set in a main frame by a driving sprocket. The paper feeder has a pair of sub-frames for assembling the feed belt and driving sprocket in a sub-assembly, and ... | 09/17/1991 |
| 5030025 | Printer having disengageable idler roller assembly In accordance with the preferred embodiment of the invention, a cam-operated idler roller assembly maintains tension on a computer printer generated form as it advances through the print station of a computer printer. This invention provides a nip station... | 07/09/1991 |
| 5027993 | Perforated paper feed apparatus with an optical system for detecting the presence and/or motion of the paper A perforated paper feed mechanism such as a tractor has an optical system for detecting the presence of the form and particularly the motion of the form and utilizes a reflector which may be mounted on the lid of the tractor at one end of the tractor (whe... | 07/02/1991 |
