Abstract: A recording apparatus includes a recording section configured to jet a liquid, and a transport mechanism configured to transport a recording medium on which an image is recorded by the liquid jetted from the recording section. The transport mechanism includes a guide surface extending linearly and configured to guide one of two lateral ends of the recording medium transported, a driving roller configured to contact with one surface of the recording medium on a side with no image recorded and to transport the recording medium; and a driven spur having at least one spur configured to contact with the other surface of the recording medium on the side with the image recorded so as to nip the recording medium in cooperation with the driving roller, and to rotate along with the transport of the recording medium by the rotation of the driving roller.

Abstract: There is provided a recording apparatus including a recording section and a transport mechanism, which has a guide surface, a driving roller, and a driven spur. A length X (mm) of a front end surface of the driven spur and an angle Y of the driven spur are configured to be within a first area surrounded by a mathematical expression 1 which is X>0, a mathematical expression 2 which is Y>0, a mathematical expression 3 which is Y=40.1X+1.6, a mathematical expression 4 which is Y=?9.0X+5.6, a mathematical expression 5 which is Y=?12.1X+6.0, and a mathematical expression 6 which is Y=?14.7X+7.1.

Abstract: A printer includes a supporting member, a print head and a guide member. The supporting member is configured to support a sheet print medium on an upper surface of the supporting member. The print head is provided to print on the sheet print medium fed onto the upper surface of the supporting member. The guide member is configured to guide the sheet print medium to feed the sheet print medium onto the upper surface of the supporting member. The guide member includes at least one guide collar around which the sheet print medium is wound and a guide bar provided in the at least one guide collar so that the at least one guide collar is rotatable around the guide bar.

Abstract: In a portable small size printer unit 1, when a pickup roller is replaced, user grips a roller main body and slides it resisting a bias force of a spring. Consequently, when the roller main body is slid, the entire length of the pickup roller is shortened, so that a first convex portion is removed from a first concave portion. After that, the front end of a slide shaft member is removed from a shaft mounting portion by tilting the roller main body and then, the pickup roller is removed from the printing mechanism unit. By sliding the slide shaft member outward of the roller main body, the roller main body is taken out of the slide shaft member and the like so as to replace only the roller main body.

Abstract: Disclosed is an idler roller assembly for a printing apparatus. The idler rolling assembly includes a shaft, at least one idler rolling element connected to the shaft, the at least one idler rolling element having an inner surface and an outer surface and being connected to the shaft at a substantially center portion of the idler rolling element, the at least one idler rolling element being cylindrically shaped and having an axis substantially parallel to an axis of the shaft, and at least one radial control movement element connected to the shaft, the at least one radial control movement element having a radius selected to leave a predetermined gap between an outer edge of the at least one radial control movement element and the inner surface of the idler rolling element.

Abstract: Medium engaging members are rotatable about an axle. In one embodiment, the members have filed hubs asymmetrically extending towards one another. In another embodiment, the members have centers of mass such that the members lean into abutment with one another.

Abstract: A feeding roller is rotatable about an imaginary rotational axis extending in an axial direction and is configured to be rotatingly driven in a rotational direction for feeding a recording medium to a conveying path. A supporting section rotatably supports the feeding roller at a position in confrontation with the recording medium accommodated in a recording-medium accommodating section. A driving unit is configured to generate a rotational driving force. A transmitting unit is configured to transmit the rotational driving force to a central part of the feeding roller with respect to the axial direction. A guiding section prevents the recording medium accommodated in the recording-medium accommodating section from displacing in the axial direction. The supporting section rotatably supports the feeding roller in such a manner that an angle of the imaginary rotational axis relative to a reference direction can be changed by a predetermined amount.

Abstract: An image generating apparatus capable of stably taking up an ink sheet on a take-up bobbin with proper tensile force by performing proper torque control on the take-up bobbin is obtained. This image generating apparatus comprises a driving source transporting an ink sheet of an ink sheet cartridge and a take-up reel transmitting the driving force of the driving source to a take-up bobbin of the ink sheet cartridge and taking up the ink sheet on the take-up bobbin, while the take-up reel includes a reel member, integrally provided with a plurality of fragment portions concentrically with the rotation axis thereof, engaging with the take-up bobbin, a driving-side gear member fitted with the outer peripheral surfaces of the fragment portions of the reel member and a spring member press-fitted with the inner peripheral surfaces of the fragment portions of the reel member thereby bringing the fragment portions into pressure contact with the driving-side gear member.

Abstract: A printer having a paper discharge mechanism which reliably prevents recording paper after completion of the printing operation from being pulled back inside the printer. The printer includes a paper feed roller 62 located on the upstream side of the printing position 83 along the horizontal paper transportation path of the printer. A paper cutting mechanism 67 is located downstream from the printing position. A pressure roller 66 presses the recording paper against a discharge roller 65 from the top side of the paper transportation path. A reversing-prevention lever 80 is disposed coaxially and freely rotatably to the pressure roller 66. The center of gravity of the reversing-prevention lever 80 is downstream from the axis of rotation 66e of the pressure roller 66, and the weight of the reversing-prevention lever 80 causes the reversing-prevention lever 80 to contact the top of the discharged paper 10.

Abstract: Various apparatus and method relating to medium engaging members are disclosed.

Abstract: A backup roller is formed by a member having a rotational axis and a circumferential region around which a plurality of teeth are arranged. Each tooth of the plurality of teeth has a tip end extending in a direction away from the rotational axis. When the backup roller is rotated the tip end of each of the plurality of teeth sequentially extends toward the rotational axis of a drive roller at an angle non-orthogonal to the rotational axis of the drive roller.

Abstract: A printer including: at least one elongate roller arranged, in use, to rotate so as to transport print media within the printer; a support frame for supporting the roller at the longitudinal first and second ends of the roller so as to allow the rotation of the roller; and fixing means for fixing the roller to the support frame at the first end of the roller, the fixing means including: a bearing into which the first end of the roller is positioned for allowing the rotation of the roller; and engagement means arranged to slidably engage with the support frame so as to fix the roller thereto, the bearing being configured to allow pivotal movement of the elongate roller about the second end of the roller during the sliding engagement of the engagement means and support frame.

Abstract: In a thermally transcribing printer including a frame, a roller made of a metal for feeding sheet at constant speed, a gear made of a resin, a motor, a press-fit engaging member, and a compression coil spring, the roller includes a shaft portion attached to project from an inner side to an outer side of the frame 1 and the press-fit engaging member is press-fitted to the shaft portion. Further, the gear includes a shaft inserting hole in a circular shape inserted from an outer side of the press-fitted engaging member made of a metal into a shaft portion of the roller, and four second engaging portions provided at intervals of 90 degrees between the shaft inserting hole and an outer peripheral portion of the gear and having a predetermined length in a rotational direction.

Abstract: In a thermally transcribing printer including a frame, a roller shaft, a roller shaft drive gear and a motor, the roller shaft includes one end installed on an inner side of the frame and folded to bend in an L-like shape and other end fitted to a drawout preventing portion in a recess shape of the frame. The roller shaft drive gear includes a hook portion attached to the one end of the roller shaft, engaged with a portion of the roller shaft other than the fold-bend portion disposed a vicinity of the one end of the roller shaft and having an opening width smaller than a diameter of the roller shaft for restraining the roller shaft from being detached in the bended direction, and a pair of rotation preventing ribs for holding to squeeze the fold-bend portion of the roller shaft.

Abstract: A planographic printing plate supply unit comprising: carrying rollers rotating while pressing a stacking bundle, in which planographic printing plates and covering papers are stacked alternately, so as to carry the planographic printing plate and covering paper at the top of the stacking bundle, wherein convex portions which are elastically deformed when pressing the stacking bundle and whose contact area with the planographic printing plate is larger after being elastically deformed than before are provided on the outside periphery of the carrying roller.

Abstract: 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 advanced through a print zone of the print head in a moving direction. A mechanical restraint is used to restrict the movement of the substrate through the print zone such that the substrate is allowed to move a fixed distance after the print head has printed one printed line until the last is printed. The fixed distance is substantially equal to the width of one printed line.

Abstract: A recording device for recording an image on a recording medium, the recording device comprising: a recording head having a liquid drop discharging surface for discharging liquid drops toward a recording medium; a liquid receptacle disposed at a position opposing a liquid drop discharging surface of the recording head, and able to accommodate the liquid drops; and a conveying device for conveying the recording medium between the recording head and the liquid receptacle, by a non-electrostatic attraction method.

Abstract: A printing apparatus includes a conveyance mechanism for conveying a web to a transfer unit, and a tension generating mechanism for applying a tension to the web fed to the conveyance mechanism, wherein the tension generating mechanism includes a tension generating roller for changing the tension to be applied to the web in accordance with the rotational position, a tension guide that is rotated in accordance with the magnitude of tension generated by the roller, a first sensor for sensing the rotational position of the tension guide, a second sensor for sensing the rotational position of the tension generating roller, and a driver for controlling the rotation of the motor in accordance with the outputs of the first and second sensors.

Abstract: In order to manufacture a discharging roller which discharges a recording medium from a recording apparatus, there are a first die formed with a first recess extending in an axial direction of a shaft portion of the discharging roller, and a second die formed with a second recess extending in the axial direction. The first die and the second die are combined such that the first recess and the second recess face to form a continuous cavity. Synthetic resin is injected into the cavity to mold a bore portion of the shaft portion.

Abstract: There is disclosed a linerless label web roll wherein the label web has a patterned coating of pressure sensitive adhesive on its underside between marginal side edges and at marginal side edges of the label web. The adhesive is provided in longitudinally extending laterally spaced stripes of adhesive with intervening adhesive-free zones. The label web can be supported and/or guided by support or guide elements which contact the adhesive-free zones in a suitable utilization device such as a printer or label applicator.

Abstract: A discharging unit has multiple discharging rollers for transporting sheets downstream from a recording head in the direction of transporting, arrayed in the direction of transporting. Of the multiple discharging rollers, a second discharging roller disposed farthest downstream in the sheet transporting direction is formed with higher precision than a first discharging roller disposed further upstream.

Abstract: An image forming machine driving apparatus includes a first one direction power transfer part transferring or cutting off a dynamic power of a driving motor to or from a feeding part according to rotation directions of the driving motor, and a feeding part power-engaging removal device cutting off a jammed paper-removing force not to be transferred to the driving motor when the jammed paper-removing force is applied to the feeding part in a power transfer direction of the first one direction power transfer part, thereby preventing the jammed paper from being torn off or damaged when the paper jammed in the feeding part is removed during supplying or feeding the paper.

Abstract: One embodiment of a positioning system for positioning a sheet of print media within a print media handling mechanism comprises a drive shaft that rotates about a drive shaft axis of rotation; and a drive roller mounted on the drive shaft, the drive roller driven by the drive shaft to rotate about an axis of rotation different from the drive shaft axis of rotation.

Abstract: A recording material conveying device is provided with a pair of rotational members for conveying a recording material, and for one of the rotational members, an escape portion is formed for an opening portion of a bearing hole thereof and that satisfies a condition of ???, where an angle formed by the axial core of the axial member supporting the rotational member and the center of the bearing hole for bearing the axial member is ?, and an angle formed by the center of the bearing hole and the escape portion of the bearing hole is ?. With the structure thus arranged, it becomes possible to prevent a recording material from being damaged or stained, or be otherwise adversely affected, by use of an expeller rotational member, while performing a stabilized conveyance of a recording material without increasing costs.

Abstract: An inkjet apparatus includes a media drive means for moving a medium through a print zone of the apparatus, and also includes a carriage, in which a printhead is mounted, for traversing the pint zone in a second direction. The apparatus also includes restraining means, co-operating with the drive means, to restrain the advance of a first portion of the medium through the print zone when moved by the drive means. A method for controlling undulation on media in a inkjet apparatus includes moving a medium through the print zone, and restraining the movement through the print zone of a first portion of the medium.

Abstract: A discharging unit has multiple discharging rollers for transporting sheets downstream from a recording head in the direction of transporting, arrayed in the direction of transporting. Of the multiple discharging rollers, a second discharging roller disposed farthest downstream in the sheet transporting direction is formed with higher precision than a first discharging roller disposed further upstream.

Abstract: A print media handling device comprising a roller element having a rotational axis, the device being adapted to be mounted substantially coaxially between two adjacent pinch wheels of a ink jet apparatus such that in it is free to rotate about its rotational axis, the device being arranged in operation to limit the height of print media between said adjacent pinch wheels.

Abstract: A wide-width format printer having detachable and replaceable paper feed unit components includes an automatic sheet feeder having a feeding width corresponding to standard width print media, a manual sheet feeder having a feeding width corresponding to standard width print media plus an additional width, paper feed unit for feeding print media fed from either the automatic sheet feeder or the manual sheet feeder through a paper path which passes a print position to a media ejection portion, the paper feed unit comprising at least first and second detachable print roller sections, first and second detachable spur wheel sections, at least two detachable friction wheels and a drive roller, wherein the first detachable print roller section and spur wheel section oppose each other, the second detachable print roller section and spur wheel section oppose each other and wherein the first and second detachable printer roller segments are aligned coaxially and the first and second detachable spur wheel segments are a

Abstract: A roller for contacting print media in an image forming device includes a tubular core formed of a first material and having an inner surface and an outer surface, and a sleeve formed of a second material and surrounding a portion of the tubular core. The sleeve includes an inner portion surrounding a portion of the inner surface of the tubular core and an outer portion surrounding a portion of the outer surface of the tubular core. The outer portion of the sleeve has an outer surface for contacting the print media. As such, contact of the print media with the roller is made by the outer portion of the sleeve when the print media is routed through the image forming device.

Abstract: To avoid the effects of unwanted variations in the pen-to-paper spacing of a printer, deliberate and effectively randomised variations are introduced by using paper drive rollers (20) with an irregular cross-section. In one embodiment, an overdrive roller comprises rollers (23-26) the surfaces of which incorporate flattened portions (27, 28) of differing widths and spacings. The number, size and/or spacing of the portions (27, 28) differ from roller to roller. Instead or in addition, variations may be incorporated into a pinch wheel (101), platen (15) or other component of the paper drive system.

Abstract: An image forming device for separating a printable medium from a continuous protective backing strip attached thereto includes a stepped stripper roller shaft encircled by a roller sleeve adapted to press a platen of the device wherein the image forming device causes the continuous strip to pass over a stripper bar and directs the protective backing strip to move under the stripper bar and between the platen and the roller sleeve while the printable medium continuously moves out of the device from over the stripper bar.

Abstract: An output roller for propelling a media sheet, for example in a printer, is disclosed. A plurality of protrusions is selectively positioned on the output roller. As the media sheet exists a media path, the rear edge of the media sheet is caught by the protrusions and the rear edge is further pushed forward into an output stack. Preferably, the protrusions are flexible.

Abstract: A print media handling device comprising a roller element having a rotational axis, the device being adapted to be mounted substantially coaxially between two adjacent pinch wheels of a ink jet apparatus such that in it is free to rotate about its rotational axis, the device being arranged in operation to limit the height of print media between said adjacent pinch wheels.

Abstract: The present invention provides an input roller system for displacing a printing plate toward and against a plurality of registration pins located on an external drum of an imaging system. The input roller system deskews the printing plate relative to the registration pins.

Abstract: A print feed mechanism for feeding print media to a printing zone of a printer in which the feed mechanism is adjustable to vary the position of a pinch roller against a drive roller so as to vary the angle at which print media is fed to the printing zone.

Abstract: A discharging unit has multiple discharging rollers for transporting sheets downstream from a recording head in the direction of transporting, arrayed in the direction of transporting. Of the multiple discharging rollers, a second discharging roller at the farthest-downstream disposed farthest downstream in the sheet transporting direction is formed with higher precision than a first discharging roller disposed further upstream.

Abstract: A printer wherein a drive roller of a pair of sheet discharge rollers is made of rubber and a driven roller of the pair of sheet discharge rollers is made of synthetic resin; the leading end of a sheet is guided so as to be abutted against the drive roller earlier than the driven roller; the sheet that is in the course of being discharged is guided by a sheet discharge tray so as to come in slidable contact with an edge portion that is on a print head side of a sheet discharge opening. As a result, the printer can provide satisfactory printing conditions quickly with a simple structure and reduce noise leaking from the sheet discharge opening.

Abstract: A sheet conveying mechanism for a printer which records an image on a sheet fed from a sheet feeder, includes a hard pinch roller; and a capstan roller confronting the pinch roller, the capstan roller associating with the pinch roller to convey at least one sheet. The capstan roller has a surface on which a plurality of projections are formed. The height of the projections is 60 &mgr;m±40 &mgr;m, a projection pitch in an axial direction of the capstan roller is 0.5 mm±0.2 mm, and the projections are arranged on half or more of the area of the surface of the capstan roller.

Abstract: A backlash correction device of this invention has a motor, a gear transmitting a moving force from the motor to a paper feed base, a spring urging the paper feed base to one of forward and backward movement directions of the paper feed base using an urging force, and a controller. (1) If the paper feed base is moved in an opposite direction to an urging direction of the spring, the controller drives the motor in a movement direction of the paper feed base by a predetermined movement quantity. (2) If the paper feed base is moved in a same direction as the urging direction of the spring, the controller (2-1) drives the motor in a movement direction of the paper feed base by a movement quantity which is the sum of the predetermined movement quantity and a correction quantity equal to or greater than a maximum backlash quantity, and (2-2) then drives the motor in an opposite direction by the correction quantity.

Abstract: A wide format versatile printing mechanism is provided which has ribbon tensioning means to equalize the surface tension forces across the ribbon and remove all wrinkles. In one embodiment a cambered rod is introduced between the print head and the ribbon feed roll to apply an uneven force across the ribbon's width from its uncoated side. The cambered rod is fixed between two lateral lid side plates by two screws having their axis coaxial with the axis of the cambered rod which have at one of the end cut some radial grooves. The cambered rod can be rotated around its axis and positioned under different angles around its axis by means of a set screw through the lid side plate which corresponds with the radial grooves of the cambered rod's end, offering a variation of the tensile forces in the ribbon. In another embodiment, a second rotating cambered rod is located between the print head and ribbon take-up roll to apply an uneven tensile force across the ribbon's width from its uncoated side.

Abstract: A sheet supply apparatus can be releasably attached to a printer. The sheet supply apparatus includes a frame having a sheet conveyance surface, and a shaft arranged above the sheet conveyance surface and having protrusions for correcting inclined feeding of a sheet while conveying the sheet. A plurality of supply sensors are disposed above the sheet conveyance surface at positions beyond the shaft, and in a line parallel to the shaft, for detecting presence or absence of a sheet. The sensors can also detect the size of the sheet to control the carrier of the printer to realize a random set of the sheet.

Abstract: A paper eject apparatus for preventing a paper jam caused by a curled paper, by ejecting the curled paper outside passing between an eject roller and an idler roller. The paper eject apparatus of the ink-jet printer for preventing the paper from being jammed differentiates positions to be contacted between each idler roller and eject roller, and moves a carriage from the position of a protrusive idler roller to the position of the other idler rollers. Accordingly, the deflector placed at the lower part of the carriage presses the paper and enables the paper to easily be passed, thereby preventing the paper jam caused by the supply of the curled paper.

Abstract: A sheet discharge roller is formed from material having great rigidity such as metal and has discharge roller convey portions and discharge roller groove portions (circumferential grooves) to which spurs are opposed. The spurs are not contacted with the sheet discharge roller. The discharge roller convey portions are surface-finished to increase a friction force. There is provided a recording apparatus in which sheet conveying accuracy is improved without transferring ink to a sheet to thereby obtain a high quality image with high resolving power.

Abstract: A recorder comprises, a conveying roller for sending off sheets one by one from stacked sheets of paper; a sheet support biased toward the conveying roller; an feed roller positioned upstream a recording head and downstream the conveying roller; and a spring for biasing the feed roller downstream. The rotation shaft of the feed roller is supported with a bearing. The conveying roller has a semi-cylindrical shape, and the rotation shaft of the conveying roller is provided with a collar. The movement of the rotation shaft of the feed roller within a bearing is restricted, when a trailing edge of the sheet exits from the collar.

Abstract: A recording medium transporting apparatus is shown including a rowel spur. The rowel spur is designed to control the amount of ink adhering to the rowel spur, thus preventing image quality problems associated with slippage between the rowel spur and the recording medium and smudging of ink that is not adhered to the recording medium, as well as maintaining good transporting of the recording medium. The recording medium transporting apparatus transports a sheet shaped recording medium by using a rowel spur. Each tooth of the rowel spur is formed with a plate-like radially inner portion having a substantially constant thickness in a direction parallel to the central axis of the rowel spur, and a wedge-shaped radially outer portion. The wedge-shaped portion includes at least one slanted axial face that intersects a side of the tooth facing in the direction parallel to the central axis.

Abstract: A platen-driven thermal dye printer mechanism (1), and more particularly to a cone-shaped scuff roller (7) which aligns a dye print receiver media sheet (2) with the receiver guide wall (8) during printing in a reciprocating direction (5). Using at least one conical shaped scuff roller (7) at one end of a platen roller (4) to transport the precut dye receiver media (2). The conical scuff roller (7) presses the back surface of the dye receiver media (2) against the non-imaging margin of the thermal dye printer mechanism (1). The invention uses a smooth guiding plate (28) and platen (4) thus, preventing scratches on the front surface of the receiver media (2). The invention is not subject to costly breakdowns, in that it uses the clockwise and counter-clockwise rotation of the platen (4) to provide perfect alignment of the receiver media (2) and printer head (9).

Abstract: A statement printer of an automated teller machine includes a top plate (16) pivotally mounted on a pair of spaced side walls (12). The top plate supports a ribbon cartridge (18) thereon. The cartridge includes a pair of downward extending projections (38) which are accepted in a longitudinally extending recess (24) in the top plate. Notches (40) and the longitudinally extending projections engage a leaf spring (28) to position the cartridge thereon. The top plate further includes a pair of finger projections (30) having slots (34) for accepting wing projections (36) that extend from the sides of the cartridge. The guided relationship between the downward extending projections and wing projections on the cartridge and the longitudinal recess and the slots on the top plate enable the cartridge to be guided into position on and off the top plate which facilitates changing the cartridge in the confined space inside an automated teller machine.

Abstract: A statement printer of an automated banking machine includes a lower roll shaft (118) having round paper engaging rolls (120) thereon. An upper roll shaft (122) has flat spot rolls (124, 125, 126, 127) thereon. The flat spot rolls are positioned in opposed relation with the round rolls. The round rolls are moved by a drive mechanism (128, 129). A paper sheet (130) is moved between the round rolls and the flat spot rolls. As the paper sheet is moved between the rolls lateral stresses in the paper are relieved and creases and puckers in the paper sheet are reduced.

Abstract: A roller comprises a rotary shaft, an outer peripheral wall member for defining an outer peripheral surface to be contacted with a sheet, and a support member for supporting the outer peripheral wall member so that the outer peripheral wall member surrounds the rotary shaft. The support member defines a space between the rotary shaft and the outer peripheral wall member and supports the outer peripheral wall member with maintaining a condition that the outer peripheral wall member is deformed to swell radially outwardly.

Abstract: The present invention provides a recording system including a recording head for performing recording on a sheet, a first rotary member disposed at a downstream side of the recording head and contacting an unrecorded surface of the sheet on which the recording is performed by the recording head and adapted to apply a feeding force to the sheet, and a second rotary member being provided at its peripheral surface with a plurality of teeth and contacting a recorded surface of the sheet with the tips of the teeth thereof, and cooperating with the first rotary member to feed the sheet. The plural teeth of the second rotary member are staggered with other teeth in a direction transverse to a sheet feeding direction. A member is provided to clean the first and second rotary members.