Abstract: A replacement roller cartridge for a cut sheet retard feeder. The cartridge assembly includes a feed roll , a nudger roll, and a retard roll aligned so that the axis of rotation are substantially in the same plane within a frame. The frame is inserted into the feed head and pivoted into an active position. Upon insertion into the feed head, the retard roll is captured by a separate retard bracket so that when the feed head is pivoted into the active position the retard roll is withdrawn from the frame and forms a feed nip with the feed roll. A gear train is provided on both sides of the cartridge to drive the feed roll and the nudger roll. The cartridge assembly provides a low cost, easily replaceable unit that eliminates the need for a service technician to replace worn feed rolls. The design is also adaptable for use in various types of sheet and document feeders and can be used throughout a printing machine.

Abstract: In a time period from the time point where the forward end of a paper sheet fed from a pair of paper separation rollers reaches a registration roller to the time point where the registration roller is driven, when the load torque exerted on a forward roller is not less than second regulated torque, the transmission of power to the forward roller is released by a torque limiter provided for the forward roller. In this case, therefore, the force of paper feeding produced by the pair of paper separation rollers is regulated. Consequently, a suitable force of paper feeding can be applied to the paper sheet, thereby to make it possible to regulate the paper sheet straight in the direction of paper feeding as well as to prevent the paper sheet from continuing to be fed even if the amount of deflection of the paper sheet is saturated between the pair of paper separation rollers and the registration roller to prevent the paper sheet from being wrinkled.

Abstract: A paper supplying device includes a pair of opposite upper and lower paper supplying rollers, each having a hemicylindrical portion defining an increased frictional circumferential surface having a frictional force greater than the remaining surface of the respective roller. A pair of feed rollers are arranged on a downstream side of the paper supplying rollers at a distance shorter than a circumferential length of the increased frictional circumferential surface of the paper supplying rollers. A rotation change over device drives the paper supplying rollers in changeable rotational directions between a regular rotational direction and a reverse rotational direction. A pair of upper and lower assist rollers are arranged with a bundle of manuscript sheets placed on a paper supplying tray therebetween. The assist rollers are rotated in the same direction synchronously with the paper supplying rollers.

Abstract: A separating device wherein two belts with different friction coefficients present respective straight portions facing each other and converging at a contact portion. The belts are fed with a number of mail items which are wedged in the V-shaped opening defined by the straight portions and are fed singly through the contact portion by the higher friction coefficient belt and to the input of a follow-up conveyor belt system. The device comprises a barrier of sensors located between the contact portion and the input of the conveyor belt system, and which provide for determining the form and spacing of the mail items. The signal generated by the barrier of sensors is used for adjusting operation of the higher friction coefficient belt.

Abstract: In a time period from the time point where the forward end of a paper sheet fed from a pair of paper separation rollers reaches a registration roller to the time point, where the registration roller is driven, when the load torque exerted on a forward roller is not less than second regulated torque, the transmission of power to the forward roller is released by a torque limiter provided for the forward roller. In this case, therefore, the force of paper feeding produced by the pair of paper separation rollers is regulated. Consequently, a suitable force of paper feeding can be applied to the paper sheet, thereby to make it possible to regulate the paper sheet straight in the direction of paper feeding as well as to prevent the paper sheet from continuing to be fed even if the amount of deflection of the paper sheet is saturated between the pair of paper separation rollers and the registration roller to prevent the paper sheet from being wrinkled.

Abstract: A method for separating articles, such as paper or plastics sheets or envelopes, from a stack (9), and apparatus for carrying out this method is disclosed. A feed roller (6) periodically feeds an outer article to a conveyor roller (2) opposite to which a separation surface (3) is disposed. The pressure force of the feed roller (6) on the stack (9) is reduced when an article supplied is being carried off by the conveyor roller (2). The object of the invention is to provide such a method which can be carried out reliably with a simple construction. According to the invention, each time an article (8) is carried off by the conveyor roller (2), the feed roller (6) is carried along by said article (8) as long as the feed roller (6) bears on that article (8). The force with which the feed roller (6) bears on the stack (9) is then enhanced by the action of frictional force which is exerted by the feed roller (6) on an article (8) to be carried off.

Abstract: The apparatus comprises a transport roller which is coupled with a drive arrangement for rotating the transport roller in a direction of transport, a separation surface located opposite the transport roller and device for pressing towards each other the transport roller and the separation surface. It is proposed to provide the apparatus with a spacing arrangement for keeping the transport roller and the separation surface at a mutual distance. It is thus accomplished that articles which comprise a plurality of layers having a limited mutual connection can also be processed without the risk of the layers shifting relative to each other in such a way that the reliable operation of the apparatus is hindered.

Abstract: An overlapped transfer-preventing mechanism that is inexpensive, simple in construction, requires no actuator and has a high degree of freedom of layout. The mechanism includes an upper, rotatably driven, separating roll and a pivot integrated with a lower separating roll. The pivot is provided with a one-way clutch which prevents rotation of the pivot in a paper-supplying direction but which permits rotation of the pivot in the direction opposite the paper-supplying direction. The one-way clutch has mounted on it a lever member, which is engaged with a paper-carrying plate by an upward or downward moving operation of the paper-carrying plate so as to rotate the one-way clutch in the direction opposite the paper-supplying direction.

Abstract: An apparatus for feeding individual sheets from the bottom of a sheet stack. The sheet stack is placed in the paper tray with the lead edge abutting the sheet feeding apparatus. The face of the stack rests against the main fang. As a nudger forwards the sheets from the bottom of the stack to a position under the main fang, further sheet separation occurs as the lead edges of the sheets strike a corrugated fang located between the main fang and the retard roll. The corrugated portion of the fang causes the sheets to be shingled out permitting a single sheet to pass under the retard roll and to be advanced by the feed roll.

Abstract: The present invention comprises an image based document processing and information management system and apparatus. It provides a more efficient method and apparatus for handling large volumes of form based business transactions using a digital image-based system for the capture, identification and processing of images, statistics and business data. The system converts documents, such as forms and supporting pages, into digital data which can be used to update computer records and to manage and support the adjudicative processing of business transactions by human operators at computer terminals.

Abstract: In an automatic document feeder (ADF) for an image forming apparatus, a table is loaded with multiple documents or a single document, as desired. A transport section transports the document or one of the documents fed from the table to a predetermined position on a glass platen included in a body of the apparatus, and then transports it away from the predetermined position. A feed section has a feeding member for feeding the document from the table to the transporting section, and a separating member movable in opposite direction to an intended direction of document feed into frictional engagement with the feeding member. A mode selecting section is accessible for selecting either of a multiple feed mode for sequentially feeding the multiple documents from the table while separating the individual documents, and a single feed mode for feeding the single document therefrom. A drive source drives the separating member while switching the drive direction thereof.

Abstract: An apparatus which advances and separates sheets from a stack of sheets. The apparatus includes an operator pivotable frame having a nudger roll and a feed roll mounted thereon. In operation, the feed roll engages a retard roll. The retard roll is coupled through a gear to a slip clutch. In the event a single sheet is advanced by the nudger roll to the nip defined by the feed roll and retard roll, the frictional force between the sheet and retard roll is sufficient to overcome the torque applied on the retard roll by the slip clutch and the retard roll rotates in one direction permitting the sheet to pass through the nip. Alternatively, in the event multiple sheets are being advanced by the nudger roll into the nip, the frictional force is reduced and the retard roll rotates in the opposite direction under the torque applied thereon by the slip clutch driving the sheets back toward the stack from which they originally advanced.

Abstract: A paper transport apparatus has an inclinable feed-in tray. Documents are drawn from the feed-in tray with a feed roller operating in conjunction with a retard roller. The rollers and the feed-in tray are supported on a pivotable frame. Pivoting of the frame permits the feed-in tray to be inclined to a desired angle to facilitate feeding of documents that do not readily slide while resulting in the documents being fed to the rollers at a constant entry angle irrespective of the angle of inclination of the feed-in tray.

Abstract: A sheet media realignment mechanism is described for use in, for example, a printer. Preferably, the mechanism includes a lever located in the sheet-feeding path adjacent and beneath a rotatable member that mounts a plurality of sheet-feeding rollers. At the beginning of a sheet-feeding cycle, the lever is urged from its extreme upstream pivotal orientation by a pivot-mounted strut into a downstream orientation in which a top sheet of the printer's infeed stack is fed by frictional forces into the feed zone. Upon release of the lever by the strut at a predefined pivotal orientation of the rotatable member, the lever is urged farther into an extreme downstream orientation by the sheet being advanced.

Abstract: The object of the present invention is to provide a paper feeding device of frictionally separating roller mechanism, which assuredly handle and separate sheets without using a torque limiter even if environmental factors such as temperature, humidity and etc. are changed. In order to achieve the object, the paper feeding device of the present invention comprises a paper feed roller 3 and reverse roller 6, both of which are made with polynorbornene rubber, and the rubber of the paper feed roller 3 is thicker by 0.5 mm than that of the reverse roller 6.

Abstract: A process and apparatus for a cleated wheel assembly for aligning and securing a cleat to the outer circumference of a wheel which provides a cleat having attachment apertures which are secured by dowel pins within spaced receptacles, defined within the outer wheel rim, with mated plugs securing the cleat within the spaced receptacles. The assembly comprises a cleated wheel and a second wheel, the two wheels rotating in opposite direction, in order for the cleated wheel to separate a single article from a stack of articles, the second wheel preventing the next sequential article from leaving the stack.

Abstract: A currency note picking and feeding apparatus (10) includes feed belts (28) for feeding notes from the bottom of a stack of notes (20) to the nip of a rotating suction drum (22) and separating belts (64) of frictional material which engage with the periphery of the drum (22). The suction drum (22) grips and feeds the lowermost note to a further conveyor means (76,82,84), with the separating belts (64) holding back any notes superposed on the lowermost note. If a feeding failure of the drum (22) occurs, as recognized by photodetector (90) associated with the further conveyor (76,82,84) failing to sense the passage of a note within a predetermined time interval, then pivotably mounted pressure rolls (92) are caused to be moved temporarily into cooperative association with the suction drum (22) so as to press the notes present at the nip of the drum (22) and the separating belts (64) against the drum (22), thereby increasing the grip of the drum (22) on the lowermost note.

Abstract: In a time period from the time point where the forward end of a paper sheet fed from a pair of paper separation rollers reaches a registration roller to the time point where the registration roller is driven, when the load torque exerted on a forward roller is not less than second regulated torque, the transmission of power to the forward roller is released by a torque limiter provided for the forward roller. In this case, therefore, the force of paper feeding produced by the pair of paper separation rollers is regulated. Consequently, a suitable force of paper feeding can be applied to the paper sheet, thereby to make it possible to regulate the paper sheet straight in the direction of paper feeding as well as to prevent the paper sheet from continuing to be fed even if the amount of deflection of the paper sheet is saturated between the pair of paper separation rollers and the registration roller to prevent the paper sheet from being wrinkled.

Abstract: The present invention provides an automatic sheet feeding apparatus with a separation roller rotated in a sheet feeding direction, a reversible roller abutted against the separation roller and adapted to be rotated in a direction opposite to the sheet feeding direction, a supporting device pivotally provided on a support shaft and adapted to support the reversible roller for movement toward and away from the separation roller, driving force transmitter for transmitting a driving force to the reversible roller, and a interruption device provided in the driving force transmitter and adapted to interrupt the transmission of the driving force in response to a load.

Abstract: A sheet feeding apparatus comprising a sheet supporting device for stacking and supporting sheets, a sheet supplying device for feeding out the sheets supported by the sheet supporting device, a separating device for separating the sheets fed by the sheet supplying device one by one, a back tension releasing device for not acting a back tension on the sheet separated by the separating device, and a double feed preventing device, which is insertable into and retractable from a sheet feeding path for the sheet separated by the separating device. When the back tension is released by the back tension releasing device, the double feed preventing device is inserted into the sheet feeding path, thereby preventing the double feed of the sheets.

Abstract: Improvement to an apparatus for singulating respective documents fed thereto, the apparatus comprising first document feeding structure including first and second document feeding structure adjacent one another. The improvement is to the second document feeding structure and comprises a first section including an upstream end and a downstream end, the upstream end being pivotally mounted to a frame member, and including at least two outboard endless belts therearound and second structure for moving the outboard belts upstream relative to a path of travel in vertically spaced second belt runs; and a second section having at least two inboard endless belts therearound. The second section is pivotably mounted at one end to the first section.

Abstract: A sheet transport device includes a first cassette which holds first conventional thin, wide sheets; a first sheet separator positioned along a first transport path in order to separate the first sheets from one another, and including a first forward roller rotated in the sheet transport direction, a first parallel retard roller rotatable in an opposite direction, and a drive mechanism which transmits the driving force to the first retard roller only when the first forward roller and the first retard roller are out of contact with each other, such that otherwise, the first retard roller moves together with the first forward roller when they are in contact with each other, the first forward roller and first retard roller being held out of contact with each other when a first sheet is placed therebetween; a second cassette which holds the first sheets or second thicker, narrow sheets which does not permit the first forward roller and the first retard roller to contact each other when placed therebetween; and a

Abstract: An original sheet feeding apparatus is provided with a press roller to press sheets placed in a sheet input section thereof against a take-in roller, thereby ensuring that when the number (and therefore, the weight) of the sheets to be fed decreases, the sheets can still be assuredly fed therethrough. The pressing action of the press roller is triggered by a sheet detection device.

Abstract: An apparatus for feeding individual sheets from the bottom of a sheet stack. The sheet stack is placed in the paper tray with the lead edge abutting the sheet feeding apparatus. The face of the stack rests against the main fang. As the feed roll forwards the sheets from the bottom of the stack to a position under the main fang, further sheet separation occurs as the lead edges of the sheets strike a substantially arcuate member located between the main fang and the retard roll. The curved portion of the member which has a larger radius of curvature than the retard member causes the sheets to be shingled out permitting a single sheet to pass under the retard roll and to be advanced by the feed roll.

Abstract: The present invention provides a sheet feeding apparatus with a supporting member for supporting stacked sheets; a feed roller for feeding the sheets stacked in the support member; a driver for generating rotational forces in a predetermined direction and in an opposite direction opposite to the predetermined direction; and a shifter for shifting the feed roller to a position where the feed roller contacts the sheet stacked in the supporting member by the rotational force directed toward the predetermined direction, and for separating the feed roller from the sheet stacked in the supporting member by the rotational force directed toward the opposite direction.

Abstract: An improved feed arrangement is provided for use with currency handling apparatus in which cooperating action of an actively-driven drum roller is used for feeding bills stacked in an input bin along the bill transport path. The picker roller is rotationally driven, not by direct contact with the drum roller, but by contact with a pressure roller which is driven by the drum roll. In effect, the picker roller is rotated in a direction counter to the direction of the bill flow so that bills other than the bottom bill in a given stack are effectively pushed away from the direction of bill flow. The picker roller is, consequently, activated to function as a retard roller, as opposed to the conventional feeding action provided by picker rollers which are in counter-rotating contact with the drum roller about the direction of bill flow.

Abstract: A paper feeding unit for feeding paper sheet by sheet from a stack of paper in a paper feeding cassette is disclosed here. The paper feeding unit is provided with a pick up roller for pulling out a sheet of paper from the top surface of the stack, a swing lever for intermittently making the pick-up roller come in contact with the top surface, a cam for swinging the swing lever and a clutch for intermittently driving the pick-up roller to rotate a predetermined angle of rotation.

Abstract: An automatic teller machine according to this invention is equipped with a receiving/dispensing unit in a customer panel of a main body of the machine. The receiving/dispensing unit has a rotary body, which defines a gear, and an openable shutter. One ends of bill guides provided in the rotary body serve as a receiving opening through which bills can be received together. The rotary body is also provided with a unit for separating and feeding one by one the bills so received and also with a feed-in opening for feeding the thus-separated bills into the main body. A drive unit is provided to rotate the rotary body via the gear, whereby the bill guides are stopped at a receiving/dispensing position to perform a receiving/dispensing procedure.

Abstract: An apparatus for sequentially feeding an accumulation of sheets stored in a storing section thereof one by one to a predetermined transport path. A pressing member presses the accumulation of sheets to one side in a direction in which the sheets are accumulated. A pair of pick-up rollers abut against the surface of the accumulation of sheets at the above-mentioned one side. A pair of feed rollers are located at a predetermined feed position in parallel with the pair of pick-up rollers. Actuators cause the pick-up roller pair and the feed roller pair to move toward and away from each other in a reciprocating motion. A pair of reverse rollers are located to face the pair of feed rollers and rotatable in a counter-feed direction opposite to a predetermined feed direction. The pick-up rollers and feed rollers moving toward and away from each other pay out a sheet from one side of the accumulation.

Abstract: A printer 20 for imprinting data on a variety of multi-dimensional media 62 has media based registration and can accomplish free edge printing for printing data adjacent edges. The printer 20 includes a transport mechanism 52 for accurately transporting and positioning the media 62 before a print head 102. Further, the printer 20 includes a carriage mounted sensor 144 for media edge detection, registration and media size determination. A media presentation mechanism 96 ensures that the media 62 is appropriately presented and maintained at the optimal distance from and orientation with respect to the print head 102.

Abstract: A card reader and validator for use in wagering terminals includes a housing with a paper path. A paper drive surface of a drive wheel projects into the paper path. A platen assembly includes a pressure roller for pressing paper against the paper drive surface of the drive wheel and a platen surface for pressing paper agianst the paper path at a processing zone. The platen assembly is pivotally mounted to the housing in a manner such that it is biased toward the paper path when the drive wheel rotates in one direction and is lifted away from the paper path when the drive wheel rotates in the opposite direction. Corresponding ribs in the platen surface and paper path flatten the paper in the processing zone to facilitate the reading of optical marks on the paper by optical sensors. An ink jet printhead is provided for printing indicia on a portion of paper traveling through the paper path. A wick mounted to the platen assembly absorbs ink from the ink jet printhead during a purge cycle.

Abstract: A paper feeder includes a rotatable feed roller and a retard roller biasingly urged toward one another, the feed roller being rotatable in a feed direction for feeding a paper sheet between the feed roller and the retard roller. A pivot arm pivotably supports the retard roller, and a motor mounted on the pivot arm is operable to apply a turning torque to the retard roller in a direction opposite to the direction of feed of the feed roller.

Abstract: A magnetic clutch provides an adjustable slip torque. A housing, having an outer surface of a predetermined frictional coefficient, is disposed around a portion of a shaft, and is rotatable relative to the shaft An outer magnetic member is disposed on the inner surface of the housing, and an inner magnetic member is attached to the shaft and disposed within the housing. The slip torque is adjusted by varying the amount of surface area exposure between the inner magnetic member and the outer magnetic member.

Abstract: A shingling device for use in a mail document sorting apparatus includes a first conveyor belt for receiving a vertical stack of sorted documents. A guide element is oblique to the conveyor belt for shifting the moving vertical stack into a shifted oblique stack and defines a gap between the belt and the guide element to enable passage of documents from the lower portion of the stack. A rotatable roller is disposed adjacent and downstream from the guide element and has a lower surface partially obstructing the gap. The roller rotates opposite to movement of the first conveyor belt for shingling documents passing through the gap. A second conveyor belt cooperates with the first conveyor belt to confine shingled documents advancing on the first belt, and cooperates with the roller so that the second belt has a longitudinal velocity substantially equal to the tangential velocity of the roller.

Abstract: An apparatus for the feeding of individual carton blanks from a stack of blanks held in a retaining magazine to an adjacent takeaway belt of a conveyor. A bi-directional roller of two or more wheels is provided whereby a cleat attached to the rim of one wheel is used to bias a package blank to an adjacent carton blank conveyor. A second wheel of the roller rotates in the opposite direction of the first wheel which engages and supports the remaining blanks.

Abstract: A document separation system including at least one separation roller system having a cooperative pair of driver and separation rollers providing a nip for the acceptance of a document between the cooperative rollers, whereby the rollers are capable of rigidifying the document by applying a beam to the document, resulting in an economical system for handling foldover documents mixed in with normal enveloped documents.

Abstract: In a combination document feed system and intelligent document separation system, including a document removal assembly associated with the document feed system for removing documents one at a time from a stack of documents disposed in the document feed system and feeding each document into the document transport system: comprising a document removal assembly for providing a contact surface between the document removal assembly and a lead document in the stack of documents, the contact surface adapted to alternately contact the lead document and advance the lead document from the document feed system to the document separation system. A document advancing apparatus is adapted to advance a single document properly removed from the stack of documents, to halt the movement of one of two documents improperly removed from the stack of documents, and to reverse the direction of movement of additional documents improperly removed from the stack of documents.

Abstract: A mail document sorting device includes a document input feeder, and at least one singulation device for orienting and singulating the documents so that indicia on their faces can be disposed at a predetermined level about a data reference plane. Single documents pass to an indicia reader, which generates indicia indicating signals. An electronic/computer mechanism processes the indicating signals, and provides for sorting the read documents into bins. A plurality of the bins is located in side-by-side horizontal array, with an elongated belt disposed along the array of bins for moving documents received therefrom. The elongated belt has an inboard edge adjacent the array of bins and an outboard edge remote from the array of bins.

Abstract: A sheet take-out apparatus which takes out sheets from a sheet stacker by frictional force produced by friction between sheets and a plurality of take-out rollers and separates sheets one by one by frictional force which is produced by friction between the upper face of the sheet and a plurality of friction rollers disposed to be opposite to the take-out rollers and has the opposite direction to that of the first mentioned friction force and the first mentioned friction force, the sheet take-out apparatus including a controller for rotating the take-out rollers with low torque until the rotation of the take-out rollers has become steady. In this apparatus, since the sheets are prevented from being taken out and fed to the gap between the take-out rollers, it is prevented that the leading edges of sheets are damaged or that sheet jamming occurs, whereby it is possible to take out sheets one by one and feed them to a sheet stacking section.

Abstract: A mechanism is described for automatically handling envelopes and paper sheets, the mechanism having an input window for receiving the envelopes and paper sheets. The mechanism comprises a first tray for holding a stack of paper sheets and is mountable in the window. A second tray is provided for holding a stack of envelopes and is also mountable in the window. A roller system is positioned to selectively engage the topmost sheet of the stack of sheets in the first tray or a bottommost envelope of the stack of envelopes in the second tray and to feed either the topmost sheet or the bottommost envelope, as the case may be.

Abstract: A sheet material feeder for high speed singulating and seriatim feeding of sheet material articles from the bottom of a stack disposed in a hopper comprises apparatus for feeding sheets from the stack and a restrainer device for restraining all but the lowermorst sheet from being fed from the hopper by virture of transversely corrugating the sheet while it is fed from the hopper and passed through the restrainer.

Abstract: A document feed system is disclosed which comprises a feed wheel (10) mounted on a first rotatable shaft (13), and a retard wheel (11) mounted on a second rotatable shaft (14). The first shaft is driven by a motor and the second shaft is mounted in a bearing fixed in a pivoting arm. A first pulley (17) is fixed on the first shaft and a second pulley (19) is coupled to the second shaft through a slipping clutch (18). A belt (20) passes round the first and second pulleys and also round an idler pulley (21) which is rotatable on a spring loaded shaft (22). The arrangement is such that the belt (20) pulls the first and second shafts towards each other so that a document may be gripped between the feed and retard wheels. If a single document is located in the nip between the feed and retard wheels it will be driven in the direction of the arrow (24).

Abstract: The apparatus is for automatically transporting sheets of original to a reading position on a plane member of an image forming apparatus. The apparatus includes an assembly for setting in position or accommodating sheets of original, an assembly for feeding the sheets, a transporting rolling device and a guiding device. The sheet setting assembly is located beside the plane member. The sheet feeding assembly is for feeding a sheet from the sheet setting assembly. The transporting rolling device presses on the plane member of the image forming apparatus to transport a sheet from the sheet feeding assembly by means of nipping the sheet against the plane member. The guiding device is located at a place adjacent to the transporting rolling device and ahead or upstream of it, with respect to the sheet transporting stream, for guiding the leading edge of the sheet to the nipping position between the transporting rolling device and the plane member.

Abstract: A sheet feeding apparatus is provided having a first rotary member for feeding a sheet material and a second rotary member arranged at a downstream side of the first rotary member in the sheet feeding direction, for further feeding the sheet material. A drive source rotates the first and second rotary members. A transmitter is adapted to be engaged to rotate the first rotary member in the sheet feeding direction and to be disengaged to stop the second rotary member, when the drive source is rotated in one direction. The transmitter is adapted to be disengaged to stop the first rotary member and to be engaged to rotate the second rotary member in the sheet feeding direction, when the drive source is rotated in the other direction. The rotation of the first rotary member is prohibited in the sheet feeding direction at the start of rotation of the drive source in the other direction.

Abstract: An apparatus for controlling a sheet supplying device having a feeding device capable of feeding a copying sheet from a plurality of stacked copying sheets in a sheet stacking portion and a reversing device capable of returning copying sheets desired not to be fed at an instance of feeding process includes an unit for applying a rotational driving force to the feeding device so as to draw a copying sheet out of the stacked copying sheets in the sheet stacking portion by rotating the feeding device in one direction, and an unit for applying a rotational driving force to the reversing device so as to return a copying sheet desired not to be fed to the sheet stacking portion at a time when a plurality of copying sheets are simultaneously fed out from the sheet stacking portion by rotating the reversing device in another direction.

Abstract: A video printer of the present invention is characterized by a holder attached to the drum for securely holding the printing paper thereon, so that the paper could be closely fixed onto the drum surface to be exactly transported through the entire printing processes up to even its final feeding step without any printing error, thereby obtaining a clear color image of printing in a video printer.

Abstract: A printer wherein a piece of recording paper housed in a cassette is picked up and sent to a platen roller which is made to rotate in the direction of leading the sent recording paper to the printing position, hereupon one piece of recording paper to be sent to the printing position is separated from the other pieces, the latter pieces being sent back in the reverse direction to the printing position, by rotating a separation roller positioned against the platen roller in the same direction as that of the platen roller rotation.

Abstract: A paper feeder includes a rotatable feed roller and a retard roller biasingly urged toward one another, the feed roller being rotatable in a feed direction for feeding a paper sheet between the feed roller and the retard roller. A pivot are pivotably supports the retard roller, and a motor mounted on the pivot arm is operable to apply a turning torque to the retard roller in a direction opposite to the direction of feed of the feed roller.

Abstract: Disclosed is a recording sheet feeding apparatus for feeding recording sheets singly to a copying machine, comprising a sheet storage cassette for storing the recording sheets, a conveyance roller for conveying the recording sheets from the sheet storage cassette to a feeding roller, the feeding roller for feeding the recording sheets conveyed from the sheet storage cassette to the copying machine, a sheet separation roller, in contact with the feeding roller, for separating one of the recording sheets from other recording sheets so that the recording sheets are fed to the copying machine singly, and a rotation resister for resisting the rotation of the sheet separation roller by frictional resistance of a resistant member in which the sheet separation roller is further capable of rotating in an opposing direction to the feeding roller by the resiliency of a spring so that the other recording sheets separated by the sheet separation roller are fed back towards the sheet storage cassette.

Abstract: A sheet feeding apparatus of the invention comprises a conveying belt which is driven in such a direction as to send sheets, a belt or the like which is driven in the direction opposite to the belt conveying direction so as to apply a predetermined resistance force to the feeding of the sheets, and a frictional member adapted to be come into pressure contact with the conveying belt through the sheets. With the apparatus, the sheets can be certainly separated one by one irrespective of the material and thickness of the sheet.