Abstract: Device for laterally aligning sheets in a feeder of a sheet-fed rotary printing press wherein sheets having respective leading edges aligned at front lays of a feeder table are gripped by a gripper system of a pregripper in succession individually at an edge region thereof, and transferred with a swivelling or revolving movement to a gripper system of a revolvingly driven feed cylinder, includes motorized adjustment elements for laterally displacing at least one of the gripper systems transversely to sheet travel through the printing press, measuring elements for determining an actual position of a side edge of a respective sheet on the feeder table, and a setpoint- actual value comparator for comparing a setpoint position of the side edge of the respective sheet on the feeder table with the actual position of the side edge determined by the measuring elements, and for generating pulses for controlling the measuring elements in accordance with the comparison.

Abstract: Disclosed is a printer apparatus for correcting a slant of a medium at a medium insertion port. This printer apparatus corrects slants of the mediums having a variety of thicknesses. The printer apparatus comprises a slant correcting mechanism for correcting the slant of the medium inserted, a conveying roller for conveying the medium the slant of which is corrected, and a printing mechanism for executing a print on the medium conveyed by the conveying roller. This slant correcting mechanism includes a plurality of polygonal rollers, having rotational phases different from each other, for conveying the medium, and an impingement member upon which the medium conveyed by the polygonal rollers impinges.

Abstract: A registration/indexing system is disclosed having a conveyor system (20), a gate (30), a plurality of hard rollers (40,50) and a plurality of soft rollers (60).

Abstract: A device for aligning sheets on a feeding table of a sheetfed printing press having at least one swivelably mounted top lay and at least one swivelably mounted front lay, and a control device for cyclically moving the at least one front lay and the at least one top lay includes a control device for the at least one top lay operative independently of the control device for cyclically moving the at least one front lay and the at least one top lay, the at least one top lay being disposed so as to be vertically movable and being constructed wider than the at least one front lay, and the at least one front lay being laterally encompassed by the at least one top lay.

Abstract: Sheet guiding cylinder of a printing press includes a cylinder casing rotatable about an axis of rotation, and having an outer cylindrical surface defining a skeletal framework; the skeletal framework being formed by guide vanes extending in longitudinal direction of the sheet guiding cylinder and having a curved guide vane profile disposed in planes perpendicular to the axis of rotation, the guide vanes beginning from respective locations radially inward from the outer cylindrical surface and terminating substantially radially in an imaginary cylindrical envelope surface enveloping the outer cylindrical surface and being symmetrical with the axis of rotation.

Abstract: Document registration apparatus, including: a deck for supporting documents along a document path from an upstream position to a downstream position; a pair of transport belts for transporting the documents along the document path; a plurality of laterally spaced registration stops defining a document registration position in the document path, the stops being located at a downstream position substantially perpendicular to the document path for both stopping the documents at the document registration position and for aligning the documents relative to the document path; a pinch roller situated above each of the pair of transport belts at an upstream position for urging the stopped documents against the transport belts; and a pair of laterally spaced belt/paper supports secured to the deck.

Abstract: Apparatus for turning an envelope. The apparatus includes: a pivotable feed deck for receiving an envelope; a device for stopping the envelope on the feed deck; a device for raising and lowering the downstream end of the feed deck; and a pivotable upper arm drive located above the feed deck. The drive is pivotable at its upstream end and includes a pair of feed rollers fixedly secured to the upstream end of the drive, a pair of exit rollers fixedly secured to the downstream end of the drive, and a pair of biased exit rollers secured to the drive adjacent and upstream of fixedly secured exit rollers.

Abstract: In an electronic copying machine, a paper feeding mechanism includes a paper supply roller, a reversal roller, and an aligning roller. The aligning roller and the reversal roller are rotated by a motor through first and second transmission mechanisms, respectively. The supply roller is rotated by the rotational force of the aligning roller through a third transmission mechanism. A first locking member is shifted by a first solenoid between a locking position, in which the first locking member engages the first transmission mechanism to interrupt the transmission of the driving force, and a transmission position, in which the first locking member is disengaged from the first transmission mechanism.

Abstract: An envelope positioning assembly for a postage meter. A typical postage meter includes a registration wall, a deck and a printing apparatus for printing a postage indicia on an envelope. The envelope positing assembly includes: (1) a pin fixably mounted to the registration wall and generally aligned perpendicular to the deck, (2) a stop having an obstructing surface and a cutout, (3) positioning apparatus and (4) a microcontroller in communication with the positioning apparatus. The stop is slidably mounted on the pin to move between a first position where the obstructing surface extends above the deck and provides an obstruction to the envelope and a second position where the cutout extends above the deck and does not obstruct the envelope. The microcontroller means causes the positioning apparatus to move the stop to the second position upon initiation of a print cycle.

Abstract: A statement presenter for an automated teller machine includes a pair of upper belts (30) and a pair of lower belts (32). A paper stop (28) is mounted on a frame assembly (40). Cooperating arm members (42, 52) are operable to move the upper belts downwardly as the paper stop is moved upwardly and vice versa. In operation, the upper belts are moved upwardly while said paper stop is moved downwardly and a stack of papers (12) is accumulated. After accumulation of the stack, the paper stop is moved upwardly as the upper belt moves downwardly to engage the stack. Thereafter, the stack is moved outward to an exit slot (32) where the stack may be taken by a customer. If the customer fails to take the stack the direction of the belts is reversed until the stack engages a diverter plate (36) and passes into a storage bin (39) wherein the stack is held within the automated teller machine.

Abstract: A passage ticket is conveyered while being sandwiched between conveyer belts, and brought into contact with a rolling element. The passage ticket is held stationary by a stopper whose top end portion is positioned at a conveyer path. A solenoid is operated based on a command for releasing the-holding state, so that the rolling element is rolled. Therefore, the stopper is removed from-the conveyer path, and a pressing roller coupled to the rolling element is pressed onto the conveyer belts. As a result, the passage ticket is surely conveyed as being sandwiched between the conveyer belts when the holding state is released. Therefore, even if erroneous data is contained in the passage ticket issued at an entrance gate, erroneous data can be rapidly corrected at an exit gate.

Abstract: An accumulator for accumulating sheets of material such as sheets of paper, the sheets being of substantially any length and the accumulation being in substantially any order. The accumulator includes a mechanism for moving a sequence of sheets along a first path until the leading edges of the sheets meet a deflector which deflects the sheets onto a second path. The leading portions of the sheets pass through a retraining mechanism and are stopped by a selectively activatable mechanism such as a gate and successive sheets form an accumation at the stop mechanism. As the feed mechanism continues to feed a sheet after it is stopped, the sheet buckles in a direction determined by the angle between the first and second paths, and as the feed mechanism continues to feed the sheet the buckle grows into a loop which unrolls into a receiver, which may be no more than a space provided.

Abstract: Business form components are stacked to separate them into different jobs, and after stacking are synchronously conveyed together to a pressure sealer, or similar device, for sealing the components together into a business form or are conveyed to subsequent operations such as secondary stacking into larger stacks. Each component moves from an aligner/feeder to a stacker, moving up an incline of a continuously running conveyor belt so that each successive component passes underneath any previous components in a stack. When a movable stop against which the components are held rotates out of the way, a top roller near the trailing ends of the components pinches them against a bottom roller so that the components move together away from the stacker in register with each other.

Abstract: A document registration apparatus for use in a document inserting station or a document queuing station is provided. The apparatus includes a document registration unit having a plurality of laterally-spaced registration stops which pivot about a horizontal axis for stopping motion of a document and registering a particular edge of a document to a particular direction in the apparatus. There is at least one urge roller for moving the registered document away from the apparatus for further processing. The document registration apparatus also includes structure for pivoting the documentation registration unit about a vertical axis for skew adjustment of the registration unit.

Abstract: A document registration apparatus for use in a document inserting station or a document queuing station is provided. The apparatus includes a document registration unit having a plurality of laterally-spaced registration stops for stopping motion of a document and registering a particular edge of a document to a particular direction in the apparatus. The registration unit also includes at least one non driver urge roller for moving the registered document away from the apparatus for further processing. The document registration apparatus also includes a jam access hinge for providing access to a jammed document.

Abstract: The present invention relates to a feed device for feeding a sorting machine for sorting flat objects and comprising at least one input feeder for the objects and pockets to which the objects are fed vertically for transport, the feed device allowing the objects to be fed one by one from the input feeder towards a vertical pocket. A conveyor module comprises at least two stop gates spaced by a distance greater than the maximum length of the objects. An accelerator module is located between the conveyor module and a vertical transfer device and comprises a downstream stop gate. The vertical ejection device is formed by an injecting module. These modules are provided with continuously operating positive entrainment devices and the stop gates control the movements of the objects in response to detectors located in the path of the objects.

Abstract: A document registration apparatus for use in a document inserting station or a document queuing station is provided. The apparatus includes a document registration unit having a plurality of laterally-spaced registration stops which pivot about a horizontal axis for stopping motion of a document and registering a particular edge of a document to a particular direction in the apparatus. The registration unit also includes at least one urge roller for moving the registered document away from the apparatus for further processing. The document registration apparatus also includes structure for adjusting the position of the document registration unit for handling different length documents. The apparatus further includes structure for pivoting said documentation registration unit about a vertical axis for skew adjustment of said registration unit.

Abstract: A sheet feeder with single sheet bypass sheet feeding capability has a sheet support platform for supporting a stack of sheets, at least one sheet feed roll fixedly mounted on a rotatable shaft and having a segmented feed portion for contacting and feeding the top sheet in a stack of sheets and defining therewith a sheet feeding path, sheet registration rolls downstream of the feed roll, at least one sheet bypass registration finger upstream of the registration rolls and downstream of and freely mounted about the feed roll shaft in the sheet feeding path, a sheet bypass guide rotatably mounted about the sheet registration rolls, the bypass guide having an angled sheet entrance throat to center a sheet and guide the leading edge into said bypass registration finger, the feed roll being rotatable through an opening in the bypass guide from a nonfeeding, standby position where the segmented portion is on the side of the shaft opposite the sheet support platform and a sheet feeding position where the segmented po

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: A scanner has a frame assembly containing a carriage movably mounted in the frame assembly for scanning movement in a scanning path in a first direction along the length of the frame assembly from a home position to an end of scan position, the frame assembly including at least one sheet transport path including at least one index roll on a rotatable shaft to index a sheet through the path, the scanner further including a toggle frame supporting at one end at least one idler roll for forming a sheet transporting nip with at least one index roll and at the opposite end at least one sheet registration gate, the toggle frame being pivotally mounted to alternately provide a copy sheet transporting nip and a sheet registration gate in said sheet transport path, the frame being activated to provide a registration gate in the sheet transport path by the scanning carriage when it is adjacent to or at the home position.

Abstract: A sheet paper feeder for use in a printing press, includes a cam mechanism interposed between sheet feeding rollers, and a source of drive force for the sheet feeding rollers which are adapted to be repeatedly rotated and stopped along a programmed continuous cam operation curve. A retracting mechanism associated with sheet holddown wheels operates in synchronism with the sheet feeding rollers to cause reciprocating movement of the sheet holddown wheels toward and away from the sheet feeding rollers.

Abstract: An apparatus for properly positioning a spacer panel relative to a container of items and a package blank which will be subsequently folded around the item container and spacer panel to form a package enclosing the item container and spacer panel. The positioning apparatus includes a plate for receiving and supporting the package blank, spacer panel, and item container in a stacked relationship with the spacer panel disposed between the package blank and item container, and a spacer panel contact blade which is movable back and forth over the plate top to contact just the panel spacer and moving the panel spacer between the package blank and item container to a predetermined location still between the package blank and item container such that when the package blank is subsequently folded to form the package, the panel spacer will be properly positioned therein.

Abstract: The aligner mechanism comprises first and second control sleeves keyed to end portions of a shaft. First and second levers are pivotally mounted on the shaft adjacent to the first and second control sleeves for movement between first and second positions. A pinch roller is rotatably mounted on the levers opposite a drive roller. The aligner mechanism also includes an aligner bar having a first leg portion and a second leg portion secured to the first and second control sleeves respectively, and an engaging portion joining the first and second leg portions. The first lever has a projection cooperating with a control member on the first control sleeve and the second lever has a projection cooperating with a control member on the second control sleeve so as to provide lost motion coupling to pivotally move the first and second levers from a first position to a second position.

Abstract: An automatic document feeding apparatus suitable for use in a facsimile machine includes a document feed roller for feeding a document to be read into an image reading section and a document discharging roller for discharging the document from the image reading section. An electromagnetic clutch is provided in the document discharging roller so that the document discharging roller may be operatively decoupled from a drive train to be set in a free condition temporarily during a time period in which a transmission completion protocol procedure and a stamping operation are to be carried out.

Abstract: A copying paper feeding device for an intermediate tray for use in a copying machine having functions of creating a copy on both sides of a paper or printing a compound copy. In the device while being pressed by a push-out roller, copying papers fed into the intermediate tray are delivered by the rotation of the push-out roller in the direction of a copying paper aligner located downstream and upper-positioned copying papers are pushed out a little further than lower-positioned copying papers in response to a counted number of copying papers fed into the intermediate tray.

Abstract: A sheet transport apparatus comprising a gate for opening and closing a transport path to stop the movement of the front end of the sheet and guide plate for pressing down a loop of the sheet. The front end of the transported sheet comes to contact with the gate to form a loop on the upstream side of the gate. Then, when the transport path is opened by the gate, the guide plate depresses the loop towards the direction of the transport to cause the front end of the sheet to move forward aided by the stiffness of the sheet itself.

Abstract: A device for guiding flat articles being fed horizontally and changing the direction of movement from one direction to another wherein the change in direction may be as great as 90.degree.. This is accomplished by providing a housing with internal rollers capable of being rotated in one of two directions.

Abstract: In a mailing machine including a postage meter, wherein the postage meter includes rotary printing structure for printing indicia on a sheet fed to the machine, and the machine includes apparatus for driving the printing structure, wherein the driving apparatus includes a drive gear, the driving apparatus includes a locking member movable into and out of locking engagement with the drive gear, the driving apparatus includes an actuating member for moving the locking member, and wherein the machine includes trip structure for sensing a sheet fed to the machine, an improvement comprising: a source of supply of d.c. power; a first circuit connected across the power supply and including a solenoid and a trip switch actuatable for energizing the solenoid; a second circuit connected across the power supply and including a d.c.

Abstract: In a machine including driving apparatus and structure for sensing a sheet fed to the machine; an improvement comprising: a rotary timing cam; an actuating member movable into and out of locking engagement with the cam; a source of supply of d.c. power; a first circuit connected across the power supply and including a solenoid and a trip switch actuatable for energizing the solenoid; a second circuit connected across the power supply and including a d.c. motor and a motor switch actuatable for energizing and deenergizing the motor; and the trip switch actuated in response to the sensing structure sensing a sheet fed to the machine, and the driving apparatus causing the actuating member to move out of locking engagement with the cam and actuate the motor switch for energizing the motor to drive the cam when the solenoid is energized.

Abstract: In a mailing machine including a postage meter, wherein the postage meter includes rotary structure for printing indicia on a sheet fed to the machine, wherein the machine includes structure for driving the printing structure, wherein the machine includes apparatus for feeding a sheet fed thereto downstream in a path of travel through the machine, the sheet feeding apparatus includes an impression roller rotatably mounted beneath the rotary printing means, and wherein the impression roller has an inner end and an outer end, an improvement comprising: trip apparatus including an elongate trip lever and a shaft on which the lever is pivotally mounted, the trip lever extending into the path of travel; the driving apparatus including a trip switch actuatable for starting operation of the driving apparatus; the trip apparatus including a spring connected to the trip lever for normally holding the trip lever in actuating engagement with the trip switch to actuate the trip switch for maintaining the driving apparatu

Abstract: This invention relates to a feed device which automatically straightens sheets prior to their being fed.A nudge wheel feeds the paper into the apparatus against a registration gate thereby straightening the sheet.At the appropriate time, a solenoid actuated clutch initiates a mechanically sequenced series of events which raise a set of feed tires so as to pinch (hold and secure) the previously straightened sheet, lower the registration gate out of the paper path, and start the feed tires and allow the sheet to be fed.At a second appropriate time after the sheet has been fed, the solenoid clutch is de-energized. Stored energy in a spring is used to mechanically reverse the sequence, whereby the feed tires are lowered out of the paper path and the registration gate is raised up into the paper path, preparatory to the next sheet.

Abstract: A sheet feeder and accelerator for feeding of sheets, which have been aligned at front register lays, to a sheet-treating machine uses a driven accelerating roller and a plurality of cooperative pressure rollers. The time of contact between these rollers is varied by axially shifting of a control drum which has a control recess that is provided with an axially varying opening or switching angle.

Abstract: In a mailing machine including a postage meter, wherein the postge meter includes rotary structure for printing indicia on a sheet fed to the machine, wherein the machine includes apparatus for driving the printing structure, wherein the machine includes apparatus for feeding a sheet fed thereto downstream in a path of travel through the machine, wherein the sheet feeding apparatus includes an impression roller rotatably mounted beneath the rotary printing structure, and wherein the impression roller has an inner end and an outer end, an improvement comprising: apparatus for aligning a sheet fed to the machine with the path of travel, the aligning apparatus including a registration fence aligned with the path of travel, the aligning apparatus including an elongate stop lever and a shaft on which the lever is pivotally mounted outboard of the outer end of the impression roller, the stop lever extending into the path of travel for pivoting a sheet fed thereto toward the registration fence, the aligning apparatu

Abstract: An automatic document feeder, made a part of a two-side copying machine which selectably operates in one-side or two-side copying mode of operation, has a pre-feeder which advances a document to be copied next from its original position to a waiting position before reaching a copying position on a document table. A selecting device is further included for controlling the pre-feeder such that the pre-feeder does not function when the second surface of a document is being copied in two-side copying mode of operation.

Abstract: A table top buckle chute fold machine is disclosed in which improved and more reliable squaring of the paper to the folding rolls is accomplished by lightly driving an inserted sheet of paper with a friction roller against a selected one of several deflector assemblies. The deflector assemblies each include a deflector member spaced away from the rollers to direct the advancing edge of the paper inwardly so as to be abutted against the back of a recessed guide groove. An intermittently engaged drive roller causes the squared paper to be forcibly advanced against the groove, causing the sheet to buckle and be nipped between another pair of driven nip rollers, forming a first fold at the location determined by the location of the particular deflector assembly activated.

Abstract: For smoothing of the leading edges of sheets disposed on the feed table of a sheetfeeder for a rotary printing machine, a vertically reciprocable rule (3) is provided. Prior to grasping of each sheet by grippers (16), the rule is lowered onto the sheets on the table (1), thereby ironing out waviness, so that the sheets may be evenly and securely grasped by the grippers (16) and correctly fed into the printing machine. In order to position the rule as close as possible to the leading edge of the sheets, the rule has recesses (5, 6) which accomodate the grippers (16) and front gauges (17).

Abstract: An apparatus for handling articles has an accumulator with a plurality of spaced apart conveyors to permit crumbs to drop between the conveyors. A plurality of separators are located between the conveyors to separate and guide the articles into columns on the conveyors. A movable stop member is located near a conveyor for conveying articles away from the accumulator. The stop member forms columns in the accumulator by preventing passage of the articles out of the accumulator. A sensor and a controller detects and releases a sufficient number of articles in the columns.

Abstract: Paper guide mechanism is provided for a multi-function printer capable of printing on journal tapes, receipts and single or multi-sheet slips or forms. The printer has a movable slip stop for limiting movement of a slip which is inserted into the printer. The paper guide mechanism is attached to or integral with the slip stop, and is designed to restrain the path of movement of the slip and other record media to prevent interference by said record media with the movable printhead of the printer which moves in a reciprocating path which is perpendicular to the paths of movement of the record media.

Abstract: The present invention relates to a device for collecting sheets into a bundle and then conveying the bundle to a subsequent location comprising two pairs of driveable rollers capable of forming a nip between each pair of rollers. The rollers come into contact with the bundle of sheets and form the nip only after the bundle is located in the nip forming area between the rollers. One pair of rollers always forms a nip with the bundle of sheets therein, thereby preventing the bundle from shifting and tearing. The timing and interaction between the two pairs of driveable rollers is described as well as their interconnections.

Abstract: A transfer roller apparatus for use for example in an electrographic copier including a dielectric member adapted to carry electrostatically developed marking particle images. The transfer roller apparatus employs a locating and tacking mechanism of simple construction which is capable of accurately locating a receiver member on the periphery of the transfer roller without damaging the dielectric member of the copier. Such apparatus includes a cylindrical roller to which an electrical bias is applied to establish a transfer field between the roller and the dielectric member to effect transfer of marking particle images from the dielectric member to a receiver member accurately located on the peripheral surface of the roller. A flexible member having a receiver member locating feature is associated with the roller.

Abstract: Documents are advanced to a registered position along the trailing edge of the exposure platen of an electrophotographic copier by a flat belt supported adjacent to the registration edge by a pulley formed with axially spaced indentations to produce corresponding corrugations in the belt. A registration gate having a blocking position in which transversely spaced fingers extend into the belt corrugations arrests the documents at the registration edge while the normal-diameter portions of the belt pulley press the document downwardly to prevent it from riding over the registration gate. Position pulses from an encoding wheel are counted to determine the position of the document, and drive motor is slowed to one-fifth its normal speed when the document advances within a predetermined distance of the registration edge.

Abstract: A device for positioning an original in sheet form on the exposure platen of a copying machine, comprising abutment strips which extend parallel to each other at opposite sides of the platen and which are displaceable to and from each other for adjusting them to the width of an original fed between the strips on to the exposure platen. In front of each strip and displaceable therewith is at least one pair of rollers disposed with their axis parallel to the strips. A first roller of each pair being closer to the exposure platen and the associated strip than the other roller of that pair. A flexible belt for pressing an original on to the platen is trained between the platen and the said first rollers of each pair and about said first rollers and in opposite direction over said other rollers and then over the strips towards the frame of the device.

Abstract: A printing device is provided with a paper insertion mechanism including a paper stop and a pair of paper driving rolls operable in association with the rotation of a printing cylinder which includes an actuating cam. A paper presser operates synchronously with printing operation to press the paper against a paper guide during printing to impart tension to the paper to prevent transverse movement thereof.

Abstract: A sheet material conveying device includes a feed roller assembly and a temporary hampering device disposed downstream of the roller assembly. The conveying device includes a driven shaft to be rotated by a driving source and a plurality of driven rollers mounted on the shaft. The driven rollers comprise at least one positively driven roller having a non-slip rotary connection with the driven shaft and at least one negatively driven roller having a slip connection with the driven shaft. The positively driven roller is mounted on the driven shaft so as to be rotated continuously with rotation of the driven shaft. The negatively driven roller has an inside diameter larger than the outside diameter of the driven shaft and is rotatably mounted on the driven shaft.

Abstract: An automatic sheet feeding device cooperates with a copying apparatus or the like for advancing a single sheet to be copied from a stack of sheets. A sheet drive mechanism of the sheet feeding device feeds the sheets into an entrance end of a feeding device of the sheet processing apparatus. A cover is pivotally mounted on the sheet feeding device and cooperates with a roller separating device to facilitate the clearing of sheet jams. A provision is made to allow removal and replacement of rollers of the sheet drive mechanism.

Abstract: A sheet feed device for a printer or typewriter having a plurality of cassettes supporting stacks of sheets to be printed, a sheet removal mechanism associated with each cassette for removing a sheet from the cassette and positively driving the removed sheet to a position for feeding it into the printer, and a selection mechanism for actuating a selected one of the sheet removal mechanism.

Abstract: A decorrugating sheet transport system includes a drive shaft with three drive rollers mounted for rotation in relation to three idler rollers. The three drive rollers have relieved areas on portions of their circumferences and are positioned on the drive shaft so that upon receiving the lead edge of a corrugated sheet only the two outer rollers drive the sheet initially. This allows the corrugations in the sheet to expand toward the outer rollers. Next, all three rollers drive the sheet for about a 30.degree. arc and then the sheet is driven only by the center roller with the outer two rollers separated to allow the corrugations to dissipate to the edges of the sheet through a small gap between the outer rollers.

Abstract: A sheet feeder for feeding sheets one by one to a transfer path comprises feed rollers, aligning rollers, and a motor. Clutch mechanisms for transmitting the rotation of the motor are arranged individually between the motor and the feed rollers, and between the motor and the aligning rollers. Each of the clutch mechanisms includes a pair of connectors formed with mating indentations, the connectors being adapted for engagement with or disengagement from each other when the motor is stopped.

Abstract: A document printer includes sheet-feeding apparatus for sequentially presenting both faces of a print-receiving sheet to a print station. According to a preferred embodiment, such apparatus features, as part of the duplex sheet path, reversible sheet-feeding means operable in first or second active modes for selectively feeding sheets into and out of a chute, located upstream from the feeding means, to reverse the sheet's lead edge/trail edge orientation. Such sheet-feeding means is also operable in a passive mode in which it allows sheets to advance, without substantial interference, downstream therepast to a registration position.

Abstract: A copying device having an automatic document feed has a bar which extends across a substantial portion of the document path out of alignment with the image scanning portion of the platen. This bar is of a magnetically receptive material so that it is responsive to movement of a magnet which is located on the opposite side of the document-moving belt. When a document is being moved by the belt into the document exposing region, the document stop bar rests on the platen or at the edge of the platen so that the leading edge of the document butts against it. When the document is to be ejected, the magnet is moved, raising the document stop bar out of the document path; a roller which is adjacent the belt and the document being copied can now be rotated and eject the document below the document stop. In addition to lifting the magnet and therefore the document stop bar, the magnet moves slightly forward along the document path so that the edge of the document is removed from the document stop bar.