US20170008719A1 - Media processing - Google Patents

Media processing Download PDF

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Publication number
US20170008719A1
US20170008719A1 US15/113,171 US201415113171A US2017008719A1 US 20170008719 A1 US20170008719 A1 US 20170008719A1 US 201415113171 A US201415113171 A US 201415113171A US 2017008719 A1 US2017008719 A1 US 2017008719A1
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United States
Prior art keywords
media
flexion
force
path
component
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US15/113,171
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English (en)
Inventor
Francisco Gomez
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Hewlett Packard Development Co LP
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Hewlett Packard Development Co LP
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Publication of US20170008719A1 publication Critical patent/US20170008719A1/en
Assigned to HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. reassignment HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HP PRINTING AND COMPUTING SOLUTIONS, S.L.U.
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/20—Delivering or advancing articles from machines; Advancing articles to or into piles by contact with rotating friction members, e.g. rollers, brushes, or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/52—Stationary guides or smoothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68—Reducing the speed of articles as they advance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/70—Article bending or stiffening arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/66—Article guides or smoothers, e.g. movable in operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/36—Article guides or smoothers, e.g. movable in operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H85/00—Recirculating articles, i.e. feeding each article to, and delivering it from, the same machine work-station more than once
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/60—Apparatus which relate to the handling of originals
    • G03G15/602—Apparatus which relate to the handling of originals for transporting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/512—Changing form of handled material
    • B65H2301/5121—Bending, buckling, curling, bringing a curvature
    • B65H2301/51212—Bending, buckling, curling, bringing a curvature perpendicularly to the direction of displacement of handled material, e.g. forming a loop
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/94—Other features of machine drive
    • B65H2403/942—Bidirectional powered handling device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/94—Other features of machine drive
    • B65H2403/945—Self-weight powered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/15—Roller assembly, particular roller arrangement
    • B65H2404/152—Arrangement of roller on a movable frame
    • B65H2404/1521—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/63—Oscillating, pivoting around an axis parallel to face of material, e.g. diverting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/69—Other means designated for special purpose
    • B65H2404/693—Retractable guiding means, i.e. between guiding and non guiding position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/69—Other means designated for special purpose
    • B65H2404/694—Non driven means for pressing the handled material on forwarding or guiding elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/69—Other means designated for special purpose
    • B65H2404/696—Ball, sphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/40—Identification
    • B65H2511/414—Identification of mode of operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/40—Identification
    • B65H2511/415—Identification of job
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/60—Details of processes or procedures
    • B65H2557/61—Details of processes or procedures for calibrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/30—Facilitating or easing
    • B65H2601/32—Facilitating or easing entities relating to handling machine
    • B65H2601/321—Access
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/39—Scanning

Definitions

  • a printer may deposit ink on paper transported along a media path and a scanner may capture an image of a document that passes one or more image acquisition devices.
  • media typically enters the media path using one or more feed areas arranged along, or at the start of, the media path.
  • a media feed area may use friction to transport media.
  • a media feed area may comprise one or more rotating rollers, which are positioned to contact media within the media path. The friction between the rotating rollers and the media thereby causes the media to be transported along the media path.
  • FIG. 1 is a schematic diagram showing a cross-section through a media processing device according to a comparative example
  • FIG. 2 is a schematic diagram showing a close-up of a media feed area of a media processing device according to a comparative example
  • FIG. 3 is a schematic diagram showing a cross-section through a media processing device which has been coupled to an apparatus according to an example
  • FIG. 4 a is a schematic diagram showing a first portion of media in the presence of an apparatus according to an example
  • FIG. 4 b is a schematic diagram showing the first portion of media in the absence of an apparatus according to an example
  • FIG. 5 a is a schematic diagram showing a second portion of media in the vicinity of a media feed area of a media processing device that is coupled to the apparatus of FIG. 3 ;
  • FIG. 5 b is a schematic diagram showing the second portion of media in the vicinity of a media feed area of a media processing device according to the comparative example
  • FIG. 6 a is a schematic perspective diagram showing an exemplary support portion for an apparatus according to an example
  • FIG. 6 b is a schematic perspective diagram showing an exemplary arm portion for an apparatus according to an example
  • FIG. 6 c is a schematic perspective diagram showing an exemplary roller for an apparatus according to an example
  • FIG. 6 d is a schematic perspective diagram showing an apparatus according to an example
  • FIG. 7 is a schematic diagram showing a media processing device coupled to an apparatus according to an example
  • FIGS. 8 a and 8 b are schematic diagrams showing an exemplary axle aperture for a support portion of an apparatus according to an example.
  • FIG. 9 is a flow diagram illustrating a method according to an example.
  • Certain media processing devices comprise a media transport arranged to feed media back into an initial area following media processing.
  • media may be driven in two opposing directions along the media transport and/or may be routed so as to use a common media holding area.
  • FIG. 1 is a schematic diagram showing a cross-section through an exemplary media processing device 10 .
  • the media processing device 10 has a media path 20 defined by an upper surface 20 a and a lower surface 20 b.
  • the media path typically extends within the media processing device, driving the media 40 past one or more actuators and/or sensors, e.g. print-heads and/or charge-coupled device arrays.
  • the media path may be linear and/or curved.
  • the media processing device 10 comprises a feed area 30 for feeding media 40 into the device and along a media transport.
  • the media transport may comprise, amongst others, a belt-driven mechanism and/or a roller-driven mechanism.
  • the feed area 30 may be considered a start of the media transport.
  • FIG. 1 is a schematic diagram showing a cross-section through an exemplary media processing device 10 .
  • the media processing device 10 has a media path 20 defined by an upper surface 20 a and a lower surface 20 b.
  • the media path typically extends
  • media 40 is first positioned on a media tray 45 at an entrance to the media transport. In this case a portion of the media 40 extends along the media path 20 .
  • the feed area 30 comprises two rollers 30 a and 30 b, between which media 40 is transported. Rotation of the rollers 30 a, 30 b causes any media 40 that is between the two rollers 30 a, 30 b to be transported along the media path 20 .
  • a sheet of paper may contact the lower roller 30 b.
  • the lower roller 30 b may then be rotated in a clockwise direction. In this case, a frictional force between the paper and the lower roller 30 b drives the paper forward between the two rollers 30 a, 30 b, i.e. from left to right in FIG. 1 .
  • media 40 that has been processed by the device may be fed back into the media transport.
  • media 40 may be fed into the media processing device via the feed area 30 . It may pass one or more actuators and/or sensors and then may be returned to the media tray 45 .
  • the media may be returned via an endless belt mechanism or by reversing a direction of rotation of one or more rollers, e.g. rollers 30 a and 30 b.
  • media 40 while media 40 is resting on media tray 45 and awaiting removal by a user, it may remain in contact with, or in the vicinity of, the feed area 30 . This may cause the media 40 to be “recaptured” by the feed area 30 , and to be fed back into the media feed path or another part of the media processing device 10 .
  • FIG. 2 shows a close-up of an exemplary media feed area 30 , comprising an upper roller 30 a and a lower roller 30 b.
  • the upper roller 30 a rotates in a clockwise direction
  • the lower roller 30 b rotates in an anti-clockwise direction.
  • the media 40 is transported in a leftward direction.
  • gravity causes a portion, in this case a trailing portion of the media 40 to remain in contact with the lower roller 30 b.
  • rotation of the lower roller 30 b, and friction between the lower roller 30 b and the trailing portion of the media 40 can cause the trailing portion of the media 40 to be “recaptured” by the roller 30 b.
  • the trailing portion of the media 40 may be “recaptured” by the rollers 30 a, 30 b, and pulled back into the media path 20 .
  • continued rotation, of the lower roller 30 b in the same (i.e. anti-clockwise) direction could cause the trailing portion of the media 40 to be pulled into a gap 50 between the lower roller 30 b and the lower wall 20 b. Further continued rotation of the lower roller 30 b can cause more of the media 40 to be fed into the gap 50 .
  • the media 40 may become lodged in the gap 50 thereby blocking the media path 20 .
  • the media 40 may alternatively or additionally become damaged.
  • any contact between media 40 and a moving part of a feed area 30 can cause media 40 to be captured, and fed into a part of a media processing device 10 that is undesirable i.e. a part which the media 40 should not be fed into.
  • Recapture of processed media 40 by a feed area 30 of a media processing device 10 may be found with media processing devices that process media 40 in batches, e.g. with one or more sheets of media. This is because, once a first piece of media 40 has been processed by the media processing device, a trailing portion of the first piece of media 40 will typically remain in the vicinity of the last feed area 30 from which it was ejected. When the feed area 30 begins to operate again (in order to transport a second piece of media 40 along the media path 20 ) the first piece of media 40 can be recaptured by the feed area 40 . Thus, in order to avoid this, the first piece of media must be removed from the media processing device before the second piece of media is processed. This is somewhat burdensome on the user of the media processing device particularly if a large batch of media 40 is to be processed.
  • FIG. 3 shows schematically an exemplary modification of the media processing device 10 , which may provide particular advantages.
  • the media processing device 20 of FIG. 3 is fitted with an apparatus 60 , which comprises a flexion component 70 .
  • the flexion component 70 is for use in causing a flexion in media 40 . More specifically, the flexion component 70 is configured such that, while media 40 is being transported along the media path 20 , and past the flexion component 70 , the flexion component 70 contacts a portion of the media 40 , and applies a force thereto. This force causes the media 40 to bend around the flexion component 70 thereby creating a flexion in the media 40 .
  • FIG. 4 a shows a close-up of the apparatus 60 , and more particularly, the flexion component 70 .
  • the flexion component 70 applies a substantially downward force onto a first portion 40 a of the media 40 that is beneath the flexion component 70 .
  • This causes the first portion 40 a of the media 40 to bend around the flexion component 70 thereby creating a flexion in the first portion 40 a of the media 40 .
  • FIG. 4 b shows the first portion 40 a of the media 40 in the absence of the flexion component 70 . As can be seen, there is no flexion present in the media 40 depicted in FIG. 4 b.
  • FIGS. 5 a and 5 b show a close-up of the feed area 30 of the media processing device 10 .
  • FIG. 5 a shows a case with the use of a flexion component;
  • FIG. 5 b shows a comparative case.
  • the upper roller 30 a rotates in an anti-clockwise direction, and the lower roller 30 b rotates in a clockwise direction to feed media 40 into the device.
  • FIGS. 5 a and 5 b show the second portion 40 b of the media 40 as the media resides in media tray 45 .
  • FIG. 5 a shows the position of the second portion 40 b of media 40 when the media processing device is fitted with the apparatus 60 .
  • FIG. 5 b shows the position of the second portion 40 b of the media 40 when the media processing device is not fitted with the apparatus 60 .
  • the second portion 40 b of the media 40 in FIG. 5 a is a distance from the feed area 30 when the flexion component 70 is applied.
  • the tip of the sheet of media retreats from right to left along the media path 40 . As such it is further away from the feed area 30 than the second portion 40 b of the media 40 in FIG. 5 b .
  • the flexion in the first portion 40 a of the media 40 has, in this case, caused the second portion 40 b of the media to move both upwards, away from the surface of the lower roller 30 b and the gap 50 , and also to the left as compared to the location of the second portion 40 b in the arrangement of FIG. 5 b .
  • the flexion component 70 applies a force that displaces and/or bends the media, altering its planar geometry within the media path 20 .
  • the curvature of the media differs from the comparative case of FIG. 4 b , which results in a lateral displacement of the media in relation to the feed area 30 .
  • a second portion 40 b is moved away from the feed area 30 of the media processing device 10 , thereby reducing the risk that the second portion 40 b will be recaptured by the feed area 30 .
  • the apparatus 60 also comprises a support portion 80 , which is configured to couple the apparatus 60 to the media processing device 10 .
  • the support portion 80 may be integral with the media processing device 10 , or it may be attachable to the media processing device 10 , e.g. in a removable manner.
  • the support portion 80 maintains the flexion component 70 of the apparatus 60 in a position in which it can apply a force to media 40 resident in the media tray 45 .
  • the flexion component 70 comprises at least one roller 90 .
  • Each roller may be rotatable about an axis perpendicular to the direction of media transport.
  • the roller portion is positioned so as to, contact media 40 as it is transported beneath the flexion component 70 .
  • the at least one roller 90 rotates, and thereby enables the media 40 to pass beneath the flexion component without causing damage to the media 40 .
  • this may be a case when media is being transported from right to left, e.g. being transported into the media tray 45 following processing.
  • the roller 90 may be rotatable in both the clockwise and anticlockwise directions.
  • This may be useful where the media processing device 10 carries out a process in which media 40 needs to be fed back and forth along a media path 20 multiple times.
  • the media processing device 10 comprises a scanner
  • such a process requiring media to be fed back and forth along a media path 20 could be, for example, a calibration process, such as for a charge-coupled device array of the scanner.
  • the at least one roller 90 could be, for example, a cylindrical roller, as depicted in FIG. 6 c . In certain cases, such as that illustrated in FIG. 6 d , a plurality of rollers may he used. It will be appreciated, however, that the at least one roller 90 may be differently shaped, for example, the roller portion 90 could be substantially spherical. In other examples, a non-rotatable load may alternatively be applied, wherein the load is moved from the media path to allow passage of media when this is desired.
  • the flexion component 70 may be rotatably coupled to the support portion 80 about a coupling axis 100 which is offset from a centre of gravity of the flexion component 70 .
  • the flexion component 70 may be biased to rotate about the coupling axis 100 under the force of gravity towards a position of equilibrium.
  • the centre of gravity of the flexion component 70 is laterally offset from the coupling axis 100 , e.g. by a distance to the left of the axis 100 in the Figure.
  • the position of equilibrium may comprise a case where the flexion component 70 rests on the lower wall 20 b of the media path 20 .
  • the forces applied by the rollers of the feed area 30 move the media 40 from right-to-left and displace the flexion component 70 , i.e. allow it to rotate upwards in the Figure wherein the at least one roller 90 rotates as the media 40 passes.
  • a force is applied to the media 40 , via the flexion component 70 , due to gravity.
  • the flexion component 70 can be biased to apply a force to media 40 under the action of a spring.
  • the force could be applied by a motorised component, such as a rod which moves under the action of a motor to apply a force to the media 40 .
  • the force could be applied in any direction.
  • the flexion component 70 may be configured to apply a horizontal force to the media 40 .
  • the force may he applied at any angle to the direction of media transport.
  • the angle at which the force is applied will alter the shape of the flexion.
  • the direction of the force can be selected such that the resultant flexion is shaped to be compatible with a particular shape and configuration of a media path 20 and/or media feed area 30 .
  • the force applied to the media 40 via the flexion component 70 is sufficient to create a deflection in the media 40 that is large enough to move the second portion 40 b of media 40 far enough away from the feed area 30 that there is little or no risk of capture by the feed area 30 .
  • the force is also not so great that it causes damage to the media.
  • the optimum force will vary for different media 40 , and may depend on factors such as the thickness and rigidity of the media 40 , and also the material from which the media 40 is made.
  • the flexion component may apply a load in a particular way, e.g. using one or more of a weight load, a spring load and a motorised load, depending on the media and/or media path configuration that is used in an embodiment.
  • the flexion component 70 comprises at least one roller 90 , and is also rotatably coupled to the support portion 80 about a coupling axis 100 that is offset from the centre of gravity of the flexion component 70
  • the flexion component 70 may comprise an arm portion 110 for linking the roller portion 90 to the support portion 80 .
  • the arm portion 110 is coupled at one end to the support portion 80 , and at another end, to the at least one roller 90 .
  • a force applied by one or more of upper roller 30 a and lower roller 30 b determines whether media is ejected such that it is not recaptured by the media processing device.
  • upper roller 30 a and/or lower roller 30 b apply a first force that propels a leading edge of a sheet of media past the at least one roller 90 of the above described apparatus.
  • the flexion component 70 is applying a downward weight load
  • the at least one roller 90 rotates, allowing the media sheet to pass a distance into the media tray 45 .
  • upper roller 30 a and/or lower roller 30 b apply a second force that propels a leading edge of a sheet of media past the at least one roller 90 but not as far as in the eject case, e.g. the second force is less than the first force.
  • the media is transported such that the case shown in FIG. 5 a occurs, e.g. the media is in a state ready to be re-fed.
  • the second force and the weight load may be calibrated to limit the distance the media is ejected.
  • the first and second force may be calibrated by controlling the speed of one or more of upper roller 30 a and lower roller 30 b. This speed may be set by a particular mode of operation of the media processing device. In both cases, the flexion component 70 provides a braking force without damaging the media.
  • FIGS. 6 a to 6 d show the components of an exemplary apparatus 60 in more detail, More specifically, FIG. 6 a shows an exemplary support portion 80 which comprises a coupling component 80 a for removably coupling the support portion 80 to the media processing device 10 .
  • the coupling component 80 a comprises a bracket or arm. At one end of the bracket is a base portion 82 for fastening the support portion 80 to the media processing device. In FIG. 3 , this base portion 82 is securely attached to an internal structure of the media processing device.
  • the bracket then comprises an elongate member 84 than extends between the base portion 82 and a head portion 86 .
  • the head portion 86 provides a rotatable coupling for the flexion component 70 .
  • FIG. 6 b shows schematically an exemplary arm portion 110 of the flexion component 70 .
  • the arm portion 110 comprises two axle portions, wherein a first axle portion 110 a is visible in the Figure. In use, each axle portion resides within a respective axle aperture of the support portion 80 .
  • a first axle aperture 80 b is shown in FIG. 6 a .
  • an axle portion when in place within a respective axle aperture, an axle portion enables the arm portion 110 to rotate about an axis collinear with the axle portions.
  • the arm portion 110 as shown in FIG. 6 b is also adapted to receive two rollers 90 .
  • an end of the arm portion opposite to the axle portions comprises two roller supports 115 .
  • Each roller support 115 comprises two laterally spaced members.
  • Each member has an aperture arranged to receive an axle at one end of a roller 90 .
  • Each roller 90 may be removably mounted with each roller support 115 ; for example, at least one of the members may comprise a resilient member that may be moved laterally such that an axle of a roller no longer resides within an aperture of the member.
  • FIG. 6 d shows an assembled apparatus 60 according to an example.
  • the flexion component 70 comprises an arm portion 110 and two roller portions 90 ; the flexion component 70 being coupled to a support portion 80 .
  • the width of the flexion component 70 in the direction perpendicular to the direction of media transport is substantially equal to the width of the media 40 in the direction perpendicular to the same direction.
  • the width of the two rollers 90 is substantially equal to the width of a sheet of media.
  • the flexion component 70 may comprise any number of rollers with a combined length substantially equal to the width of the media 40 . In such arrangements, when media 40 is held within the media tray 45 , the flexion component 70 applies a force across substantially the whole width of the media 40 . This creates a substantially uniform flexion across the width of the media 40 .
  • the apparatus 60 may comprise a plurality of flexion components 70 , which are distributed at regular intervals across the media path 20 in a direction substantially perpendicular to the direction of media transport.
  • a plurality of media support fins 45 a provide a support for media 40 resident in the media tray 45 .
  • a media support fin 45 a comprises a curved elongate structure with a plurality of thin support members (“fins”) whose edge support a surface of the media 40 .
  • a plurality of flexion components 70 a are then arranged with respect to the plurality of media support fins. This arrangement also creates a substantially uniform flexion across the whole width of the media 40 , and thereby further reduces the likelihood that a portion of the media 40 will be recaptured by the feed area 30 .
  • the support portion 80 of the apparatus 60 may comprise axle apertures 80 b for rotatably coupling the axle portions 110 a of the flexion component 70 to the support portion 80 .
  • FIGS. 8 a and 8 b show an exemplary axle aperture 80 b in more detail.
  • the axle aperture comprises two aperture portions 120 a and 120 b.
  • the axle portion 110 a of the flexion component 70 is configured move between the first aperture portion 120 a and the second aperture portion 120 b.
  • the shape of a combined aperture comprising both axle apertures 80 a, 80 b is such that movement of the axle portions within the combined aperture is allowed.
  • a projection 130 extends into the combined aperture.
  • an end of the protrusion 130 supports a lower side of the axle portion.
  • the protrusion 130 may demonstrate a given amount of resilience enabling the movement of the axle portion.
  • FIG. 8 a shows the flexion component 70 when the axle portion 110 a is moving between the first aperture portion 120 a and the second aperture portion 120 b.
  • FIG. 8 b show the flexion component 70 when the axle portion 110 a is engaged in the second aperture portion 120 b.
  • Proving axle apertures 80 b with first and second aperture portions 120 a, 120 b, as described, is useful because it enables the flexion component 70 to be retracted out of the media path 20 , thereby enabling a user of the media processing device to gain access to the media path 20 .
  • the axle portion 110 a may be configured to move from the second aperture portion 120 b to the first aperture portion 120 a by the action of a user of opening a cover of the media processing device 10 that is in the vicinity of the axle portion 110 a.
  • the cover may be configured to lift the axle portion 110 a from the second aperture portion 120 b to the first aperture portion 120 a when the cover is lifted.
  • the flexion component 70 is held in a retracted position, out of the media path 20 , thereby enabling the user to easily gain access to the media path 20 .
  • a user may wish to access the media path 20 to clear an obstruction within the media path 20 , or to fix components within the media path 20 , for example.
  • the cover When the user subsequently shuts the cover of the media processing device 10 , the cover may be configured to push the axle portion 110 a back down into the second aperture portion 120 b.
  • the flexion component is held in the position as described above in relation to FIG. 3 , in which the flexion component contacts and applies a force to media 40 resident in the media path 20 .
  • the flexion component 70 may be retractable, such that it enables a flexion in the media 40 to be selectively generated. This in turn means that the media 40 can be selectively recaptured by the feed area 30 of a media processing device 10 .
  • media may be recaptured by the media processing device after a user has reconfigured the media in the media tray. For example, a user may apply a small force to the media in the direction of travel along the media path; this force may move the media towards the feed area and allow it to be fed into the media processing device by way of the friction rollers.
  • FIG. 9 is a flow diagram showing a method according to an example. This method may be performed using the apparatus 60 of the previous Figures or an alternative apparatus.
  • the method comprises a first block, B 1 , of applying a force to a first portion of media within a media feed path of a media processing device. As discussed above, this force may be applied via a flexion component, which may be coupled to the media processing device via a support portion.
  • a flexion component 70 may comprise one or more rollers and the method may comprise applying a force to the first portion of the media via the one or more rollers of the flexion component.
  • the method may comprise using the weight of a flexion component to apply a load to the media whereby to apply the above-mentioned force to the first portion of media.
  • This may be achieved, for example, by rotatably coupling the flexion component to a support portion about an axis which is off-set from the centre of gravity of the flexion component.
  • the force applied to the first portion of media may, in some examples, extend across the media in a direction substantially perpendicular to a direction of media transport. This helps to create a substantially even flexion across the width of the media as discussed above.
  • the method may comprise applying a force to a plurality of first portions of the media, which extend across the media in a direction substantially perpendicular to a direction of transport of the media along the media path.
  • This may be achieved, for example, by using an apparatus such as the one depicted in FIG. 7 to apply the force.
  • This exemplary apparatus comprises a plurality of flexion components, which are distributed at regular intervals across the media path in a direction substantially perpendicular to the direction of media transport. Each flexion component applies a force to a respective first portion of the media.
  • the method may comprise a further step of retracting the flexion component from the media path. Retracting the flexion component in such a way may he useful in the case that the user of the media processing device wishes to access the media path of the media processing device. Alternatively, or additionally, the retraction of the flexion component may be carried out to cause the media to be recaptured by the feed area and fed back into the media path.
  • FIGS. 8 a and 8 b depict an exemplary apparatus 60 which facilitates the retraction of the flexion component 70 in such a way.
  • the flexion component 70 may be retracted from the media path 20 by moving an axle portion 110 a of the flexion component 70 between a first aperture portion 120 a and a second aperture portion 120 b of a support portion 80 of the apparatus 60 .
  • media is used herein to refer to any material which can be processed by a media processing device, such as a scanner or printer.
  • Media may include, in particular, sheets of material such as sheets of paper, cardboard, plastic, or fabric.
  • a “flexion” in a sheet of media has been used herein to refer to any displacement and/or bending of the media that is created by a force applied to the media, and which altars the planar geometry of the media within the media path, e.g. any deflection of the media caused by the application of a load.
  • feed area has been used herein to refer to any area of a media processing device which causes media to be transported along a media path, and should not be limited, for example, to feed areas which utilise friction to transport media.
  • a feed area may utilise gravity and/or a manual feed system in order to transport media along a media path.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
US15/113,171 2014-01-30 2014-01-30 Media processing Abandoned US20170008719A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/051851 WO2015113609A1 (fr) 2014-01-30 2014-01-30 Appareil comprenant un composant de flexion, procédé comprenant l'application d'une force et appareil de traitement de milieu

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US20170008719A1 true US20170008719A1 (en) 2017-01-12

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US15/113,171 Abandoned US20170008719A1 (en) 2014-01-30 2014-01-30 Media processing

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US (1) US20170008719A1 (fr)
EP (1) EP3099615B1 (fr)
CN (1) CN105934399B (fr)
WO (1) WO2015113609A1 (fr)

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Publication number Publication date
EP3099615A1 (fr) 2016-12-07
EP3099615B1 (fr) 2017-11-29
WO2015113609A1 (fr) 2015-08-06
CN105934399B (zh) 2019-01-01
CN105934399A (zh) 2016-09-07

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