Class / Patent application number | Description | Number of patent applications / Date published |
493442000 | Folding by roller | 46 |
20080312059 | Folding apparatus - A folding apparatus includes a feed unit for supplying a medium to be folded, a folding substrate forming a convexly curved support surface for the medium and adapted to be driven back and forth in a circumferential direction of the curved support surface, and a pinch and guide structure for folding and guiding the medium on the support surface. The pinch and guide structure includes at least one endless belt that is arranged to have a belt portion held in mating engagement with a portion of the curved support surface. | 12-18-2008 |
20090036287 | METHOD OF FOLDING IN THE MIDDLE AND SHEET POST-PROCESSING APPARATUS PROVIDED WITH SADDLE UNIT - A saddle unit provided with a fold-enhancing unit for performing fold enhancement of sheets of paper folded in the middle. The fold-enhancing unit includes a fold-enhancing roller mechanism which performs the fold-enhancing operation in the direction orthogonal to the sheet carrying direction. The fold-enhancing roller mechanism includes a fold-enhancing roller pair that pinches and presses a bundle of sheets at a nip. The roller guide pair provided in the fold-enhancing roller mechanism guides the sheets of paper to the nip of the fold-enhancing roller pair when enhancing the fold of the sheets of paper. The saddle unit changes one or both of the number of times and the velocity of the reciprocating movement according to one or both of the number of sheets of paper and the quality mode which is entered and set by the user from the operation panel of an image forming apparatus or job-set by the personal computer by a user. | 02-05-2009 |
20090042708 | Folding table and corresponding chopper folding device - A folding table, in particular for a folding device which is provided with a chopper folding device, includes a folding face which is suitable for receiving a flat product to be folded, and a folding aperture which extends in a conveying direction, the table extending along a table plane. The folding face includes guides which are capable of guiding at least one conveyor for conveying a flat product to be folded in the conveying direction. | 02-12-2009 |
20090062098 | CREASING DEVICE - It is desired to provide a creasing device of which the distances between rollers of a plurality of creasing units are individually adjustable. | 03-05-2009 |
20090062099 | FOLDING ROLLER FOR SHEET PROCESSING APPARATUS - A medium processing apparatus of an embodiment of the invention includes a plurality of rollers constituting a plurality of roller pairs, a pair of feed rollers, a first pair of folding rollers, and a second pair of folding rollers, and when an angle between a line connecting axial centers of the pair of rollers and a line connecting axial centers of the first pair of folding rollers is η | 03-05-2009 |
20090137375 | Mechanism and method for bonding paper sheets on interfolding machine - In a mechanism and method for bonding two paper sheets on an interfolding machine, pre-compressing mechanisms are provided on each of two folding rollers to produce compress-to-bond areas on overlapped portions of two thick or air-impermeable paper sheets transferred to the two folding rollers, so that all plies of the two paper sheets at the compress-to-bond areas are compressed to bond together. Thereby, when the interfolding machine operates at a high speed, a plurality of the locally compressed and bonded paper sheets may still be smoothly folded to form a stack of interfolded paper sheets, such as a tissue paper stack or a paper towel stack. | 05-28-2009 |
20090258774 | Sheet creaser, sheet finisher, image forming apparatus, sheet folding method, and computer program product - In a sheet creaser, a sheet set is pushed between a pair of folding rollers to fold the sheet set. Then, a re-pressing roller re-presses the sheet set, which has been folded by the folding rollers, by rolling along the crease. Pressure applied on the sheet set by the folding rollers is released when the re-pressing roller re-presses the sheet set. | 10-15-2009 |
20100075822 | METHOD AND FOLDING MACHINE FOR FOLDING SHEETS - A folding machine and a folding method perform overlapped folding of sheets of paper, paperboard and the like. The folding machine has at least one first and one second folding station each having driven folding rolls, a transport device disposed between the first and second folding stations, a drive and a common control unit connected to the drives. The products are transported between the first and the second folding stations in an overlapping manner. | 03-25-2010 |
20100222195 | PAPER FOLDING MECHANISM AND PAPER FOLDING APPARATUS - A paper folding mechanism includes: first and second folding rollers ( | 09-02-2010 |
20100304946 | Booklet Maker With Crease Roller - A booklet maker having a first crease device forming a folded edge on a set of sheets. A second crease device is disposed downstream along a booklet processing path from the first crease device. The second crease device includes an edge engaging mechanism translatable in a direction transverse to the path of booklet travel. The edge engaging mechanism is compressively engagable with the folded edge of a booklet for forming a crease in the booklet. | 12-02-2010 |
20100304947 | Paper folding apparatus and image forming system - A paper folding apparatus performs folding by making an end of the paper abut against a stopper member to set a folding position, and making the paper at the folding position be bitten into a nip between a pair of folding rollers, and can perform the folding of a plurality of sheets of paper. The paper folding apparatus can perform outward three folding by making the paper abut against a second stopper member to set a second folding position, and making the sheets of paper at the second folding position be bitten into a nip between a second pair of folding rollers to perform a second folding. In the second folding operation for performing the outward three folding, the second stopper member is moved to push the paper in a direction of the nip between the second pair of folding rollers. | 12-02-2010 |
20110065563 | SHEET FOLDING APPARATUS, SHEET FINISHING APPARATUS HAVING THE SAME AND SHEET FOLDING METHOD - According to an embodiment, a sheet folding apparatus includes: a conveying roller pair configured to convey a sheet; a conveying path provided on a downstream side of the conveying roller pair, an opening being formed in a part of the conveying path if the sheet is triple-folded and being closed if the sheet is double-folded; a retracting conveying path, an inlet of which is opened to the opening of the conveying path and an outlet of which is closed by a stopper, the retracting conveying path leading the front end of the sheet, which is conveyed through the conveying path, from the inlet to the stopper and temporarily retracting the front of the sheet if the sheet is triple-folded; a first folding roller pair disposed near the inlet of the retracting conveying path, the first folding roller pair nipping, if the sheet is triple-folded, a bend caused by pushing of the sheet led by the conveying rollers into the retracting conveying path to form a first fold and nipping, if the sheet is double-folded, the front end of the sheet, which is conveyed through the closed conveying path, and conveying the sheet further downstream; and a second folding roller pair configured to further form a second fold in the sheet on which the first fold is formed to triple-fold the sheet, and form only the second fold in the sheet on which the first fold is not formed to double-fold the sheet. | 03-17-2011 |
20110212817 | Sheet folding apparatus - To reduce a power consumption amount of an apparatus for selectively performing folding processing in carrying a sheet from a carry-in portion to a carrying-out portion, provided are a first transport path | 09-01-2011 |
20110230324 | STRUCTURE OF MULTIPURPOSE SHEET FOLDING AND STACKING MACHINE - Folding and stacking machine ( | 09-22-2011 |
20110237415 | SHEET TRANSPORT APPARATUS - For effective achievement of an increase in productivity, prolongation of the life cycle of a consumable part, a decrease in the running cost, a lighter burden on the operator's work, and a reduction in spending on plants and equipment, a sheet transport apparatus comprises: a folding cylinder ( | 09-29-2011 |
20120015790 | Apparatus and Method for Folding Articles - An apparatus for folding articles advancing in a machine direction including a rotatable roll having a roll surface, at least one protrusion that defines an outermost surface of the roll and at least one pocket that defines an innermost surface of the roll. The apparatus also includes a peel assembly and a folding assembly. The peel assembly and/or folding assembly may be configured as one or more movable heads for receiving an article or article portion from a first carrier at a first speed and transferring the article to a second carrier travelling at a second speed. | 01-19-2012 |
20120015791 | Apparatus and Method for Folding Article - An apparatus for folding articles advancing in a machine direction including a rotatable roll having a roll surface, at least one protrusion that defines an outermost surface of the roll and at least one pocket that defines an innermost surface of the roll. The apparatus also includes a first and second vacuum conveyor assembly, each comprising two vacuum conveyors. The roll and the vacuum conveyor assemblies are cooperatively configured to fold an article. | 01-19-2012 |
20120065045 | Roller for conveying a web or sheet of paper in paper converting machines and conveying method thus obtained - An improved conveying roller for a web or a sheet in a paper converting machine comprises a first cylindrical tubular body having a plurality of radial holes arranged in substantially longitudinal rows, and a second fixed tubular body arranged coxially within the first cylindrical tubular body. The first cylindrical tubular body is capable of rotation relative to the second fixed tubular body. Slidable sealing elements are positioned between the first cylindrical body and the second fixed tubular body to define at least one suction or vacuum chamber. The chamber is suitable for being brought selectively in communication with at least one row of the radial holes during the relative rotation of the bodies. | 03-15-2012 |
20120071310 | Sheet folding device and image forming apparatus - A sheet folding device includes: a conveying path to convey a sheet; a conveying unit to convey the sheet to downstream in a sheet conveying direction; a folding-conveying path branching from the conveying path downstream of the conveying unit in the sheet conveying direction to discharge a folded sheet; a pair of folding rollers arranged in a branching portion of the folding-conveying path to fold the sheet in a nip formed between the rollers; a leading end stopper on which a leading end of the sheet is abutted to determine a folding position; an angle adjustment unit that adjusts an angle of the leading end stopper; a folding-length measurement unit to measure lengths of both edges of the sheet; and a control unit that operates the angle adjustment unit based on the measurement result of the folding-length measurement unit to variably control the angle of the leading end stopper. | 03-22-2012 |
20120115704 | PRESSURE REDUCING FOLDING SYSTEM - A method for folding sheets of a medium is provided. The method includes rotating a cam mechanism through a first period of rotation to cause a crease blade to move in a contact direction to create a crease in the sheets by pushing the sheets between a pair of first rolls, and rotating the cam mechanism through a second period of rotation to cause the crease blade to move in a retracting direction away from the sheets and cause a lever to move first and second scissor arms such that the pair of first rolls is separated and a pair of second rolls is separated. One of the second rolls is movable by the second scissor arm. | 05-10-2012 |
20120178607 | Paper Folding Device - According to an embodiment, there is provided a paper folding device that folds paper by nipping the paper between a pair of folding rollers each of which rollers is rotatably supported. The paper folding device includes: a shaft-to-shaft distance adjusting unit that adjusts a shaft-to-shaft distance between the two folding rollers so that a predetermined pressure is applied to the paper nipped between the pair of folding rollers; and a fixing unit that fixes the pair of folding rollers at a position where the folding rollers are at the shaft-to-shaft distance adjusted by the shaft-to-shaft distance adjusting unit. | 07-12-2012 |
20120184425 | SHEET PROCESSING APPARATUS - A sheet processing apparatus having: a first roller pair for nipping a sheet so as to subject the sheet to first folding; a stopper member for stopping advance of the sheet after the first folding; a guide for flexing the sheet whose advance is stopped by the stopper member; a second roller pair for nipping the sheet flexed by the guide so as to subject the sheet to second folding; and a switch member for leading the sheet to be subjected to the second folding onto a first path having the stopper member mounted thereon, and leading the sheet to be subjected only to the first folding onto a second path connected to an outside of the apparatus, wherein the guide comes into stronger contact with the sheet to be subjected to the first folding and the second folding than the sheet to be subjected only to the first folding. | 07-19-2012 |
20120302418 | System For Bifolding An Absorbent Article - A system is provided for bifolding disposable absorbent articles on a high speed production line on which the disposable absorbent articles are moved along a predetermined path. The system includes the use of one or more vacuum conveyor assemblies to engage and transfer the leading end portion of the article from the surface of a peel-roll to a folding drum. Thereby potentially reducing the occurrence of undesirable misalignment between opposing edges of an article during a bifolding process. | 11-29-2012 |
20120322643 | METHOD AND APPARATUS FOR TRANSPORTING SIGNATURES AROUND A ROLL WITHOUT INTRODUCING SKEW - An apparatus for transporting folded signatures is provided which includes a first roller and a second roller forming a first nip with the first roller. The first and second rollers each have a compressible outer layer, and are rotatable about respective axes. Preferably, the compressible outer later comprises a microcellular foam. The apparatus also includes a plurality of first transport tapes passing through the first nip and a plurality of second transport tapes passing through the first nip. The plurality of second transport tapes are wrapped at least partially around the second roller so that a signature transported between the first and second transport tapes between the first nip undergoes a change in transport direction as it is transported at least partially around the second roller. Preferably, the signatures enter the first nip perpendicular to a plane passing through the axes of the first and second rollers. | 12-20-2012 |
20130109558 | WEB PRODUCT FOLDING AND STACKING MACHINE | 05-02-2013 |
20130190158 | Method And Apparatus For Folding A Web - A web has a series of cut outs that define bridging portions therebetween. A method for folding the web includes providing the web to a first conveyor, folding the web about a folding wheel to define a folded edge that extends through the series of cut outs, transferring the web to a second conveyor having an included angle of 15 to 40 degrees in relation to the first conveyor, folding the web about a folding bar to maintain the folded edge, and spanning at least one cut out with the folding bar and contemporaneously contacting at least two bridge portions with the folding bar to maintain the folded edge of the web about the folding bar as the web passes the folding wheel edge. | 07-25-2013 |
20130203580 | Apparatuses and Methods for Folding Absorbent Articles - The present disclosure relates to folding methods and apparatuses that operate to fold an advancing substrate in the cross direction along a central region to bring a second end region into a facing relationship with a first end region. In some embodiments, the second end region of the advancing substrate is folded around a folding axis 180° to bring the second end region into a facing relationship with the first end region. The folding axis may also be defined by an arc extending in the machine direction MD, wherein the second end region of the advancing substrate is helically folded toward the inside of the arc. A folding apparatus including a curved or arc-shaped folding axis may also be configured such the first and second web paths have substantially equal lengths. | 08-08-2013 |
20130296153 | SINGLE PATH SINGLE WEB SINGLE-FOLD INTERFOLDER AND METHODS - Embodiments of the present invention provide new and improved folding apparatuses and methods for interfolding a continuous stream of sheets into a single-fold interfolded pattern of sheets while passing all of the sheets substantially along a single sheet path. More particularly, all sheets in the continuous stream of sheets pass through the nips between adjacent components. | 11-07-2013 |
20140243179 | SECOND FOLD ROLLER WITH VARIABLE GAP CONTROL - A second fold roller assembly is provided. The assembly includes a pair of second fold rollers, each supported on a support element, the pair of second fold rollers forming a nip therebetween for transporting a book, the pair of second fold rollers being separated by a gap at the nip. The assembly also includes one or more actuators coupled to the support elements and a controller coupled to the one or more actuators. The controller controls the one or more actuators to vary a size of the gap, wherein the size of the gap is controlled to be a first size when a leading edge of the book enters the nip and the size of the gap is controlled to be a second size after the leading edge of the book has exited the nip and while a portion of the book is in the nip, the second size being greater than the first size. | 08-28-2014 |
20140336030 | SHEET FOLDING APPARATUS AND IMAGE FORMING SYSTEM - A sheet folding apparatus including a conveying roller pair, first and second folding roller pairs, and a control unit. The control unit controls the apparatus such that a sheet conveying speed or a sheet conveying amount of the conveying roller pair is different from a sheet conveying speed or a sheet conveying amount of the first folding roller pair or the second folding roller pair when the folded part of the folded sheet is guided between the first folding roller pair and the second folding roller pair. | 11-13-2014 |
20140336031 | SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - A sheet processing apparatus includes: a first conveying member pair that folds a sheet; a second conveying member pair that conveys downstream the sheet folded by the first conveying member pair; and a third conveying member pair that further folds the sheet folded by the first conveying member pair. The second conveying member pair is rotatable forward and reversely when driven to convey, and is locked in one rotational direction but is rotatable in the other rotational direction when not driven. | 11-13-2014 |
20140357463 | CREASING AND FOLDING MACHINE - A creasing and folding machine includes a creasing mechanism ( | 12-04-2014 |
20150031520 | SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - A sheet processing apparatus including a first conveying member that conveys a sheet, a second conveying member that receives the sheet conveyed by the first conveying member and further conveys the sheet to a subsequent stage, a third conveying member that receives the sheet conveyed by the first conveying member and further folds the sheet, a guiding member that guides the sheet when the sheet is folded by the third conveying member, and is arranged between the second conveying member and the third conveying member. The sheet is guided along the guiding member when a bending part of the sheet is conveyed to the third conveying member by rotating the second conveying member in a reverse direction while the sheet is held by the first conveying member and the second conveying member. | 01-29-2015 |
20150080201 | FOLDING DEVICE, POST-PROCESSING DEVICE AND IMAGE FORMING APPARATUS - A folding device includes a conveying path, a placement portion, a through portion, a first folding member, a second folding member, a rotational driving unit, a rotational position detecting mechanism, a signal receiving unit, and a rotational drive control unit. The rotational drive control unit, when the signal receiving unit receives a signal, determines whether the first folding member is in a state of moving from an initial position to a protruded position or in a state of moving to the opposite direction, and, in a case of being determined to be in the state of moving from the initial position to the protruded position, controls the rotational driving unit to reverse the direction of rotational drive, and in a case of being determined to be in the state of moving to the opposite direction, controls the rotational driving unit to maintain the direction of rotational drive. | 03-19-2015 |
20150119223 | SHEET FOLDING APPARATUS AND SHEET POST-PROCESSING APPARATUS - A sheet folding apparatus having two-folding rollers each of whose outer diameter gradually decreases from the central part to each end part, a folding plate which can move forward to or backward from a nip between the two-folding rollers, and has a cutout part located at an edge part of the folding plate facing the nip between central parts of the two-folding rollers, wherein the cutout part does not reach the nip between the central parts of the two-folding rollers when the sheets are folded, and a folding plate support member which is placed at a position facing the nip between the central parts of the two-folding rollers, and can slide in a direction of moving closer to or away from the nip, wherein the folding plate support member projects from the cutout part when the sheets are set, and does not reach the nip when the sheets are folded. | 04-30-2015 |
20150298419 | SYSTEM AND METHOD FOR MAKING A FOLDED ARTICLE - A system for making a sheet of paper into a folded article is disclosed that includes multiple folding units and a turn unit for changing the travel path of the folded article. At least one of the folding units creates a fold in the folded article in a direction that is perpendicular to a fold created by another one of the folding units. The turn unit alters the travel direction of the folded article so that downstream folding units can be arranged in a manner that saves floor space. Also disclosed herein is a method of folding a sheet of paper that includes conveying the sheet of paper along perpendicular travel paths after the sheet of paper has been folded. | 10-22-2015 |
20150342791 | Method and Apparatus for Manufacturing an Absorbent Article Including a Discrete Substrate Having A Rugosity - A folding apparatus and method for forming a substrate including a discrete substrate including a rugosity. The folding apparatus may include a folding roll and a folding member. The folding roll includes an outer circumferential surface extending between the first roll surface and the second roll surface, and a receiving portion defined by the outer circumferential surface. The receiving portion may include an internal vacuum portion that may be operatively connected to an external vacuum portion. The folding member may be configured to associate with the receiving portion of the folding roll. The folding member may include a groove portion, a bonding portion, and a plurality of apertures. The folding apparatus may be used to bond a discrete substrate on a second substrate. The discrete substrate may include one or more rugosities. | 12-03-2015 |
20160060072 | SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - A sheet processing apparatus includes: a second conveying roller pair that receives and conveys a sheet conveyed by a first conveying roller pair; a first folding roller pair that forms a first fold on the sheet; and a first rotation unit capable of rotating the second conveying roller pair and the first folding roller pair. One roller of the second conveying roller pair and one roller of the first folding roller pair are a common roller shared therebetween. The second conveying roller pair causes the sheet to be deflected and guided to the first folding roller pair, and the first folding roller pair forms the first fold on the deflected sheet by rotating the first rotation unit in a certain direction in a state in which the sheet is held by the first conveying roller pair and the second conveying roller pair. | 03-03-2016 |
493443000 | Roller passive reaction member | 8 |
20110281708 | SHEET PROCESSING APPARATUS - A sheet processing apparatus includes a pushing member, a drive device, a first conveyance unit, a second conveyance unit provided on a downstream side of the first conveyance unit, a first detection unit, a second detection unit, and a control unit. The drive device moves the pushing member to push a portion of a sheet bundle to fold the sheet bundle. The first conveyance unit uses a roller pair to convey the folded sheet bundle folded. The second conveyance unit conveys the sheet bundle. The first detection unit detects an amount by which the pushing member is moved by the drive device. The second detection unit detects an amount by which the sheet bundle is conveyed by the first conveyance unit. The control unit separates the roller pair based on the amounts detected by the first and second detection units. | 11-17-2011 |
20150321871 | SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - A sheet processing apparatus includes a conveyance roller pair that rotates in a certain direction to convey a sheet, a first normal-reverse rotation roller pair that is capable of rotating in a normal direction and a reverse direction and rotates to convey the sheet, a first driver that drives the first normal-reverse rotation roller pair to rotate, and a first driving force transmitter that transmits a driving force of the first driver for rotating the first normal-reverse rotation roller pair in a first specific direction to the conveyance roller pair so as to rotate the conveyance roller pair in the certain direction, and blocks a driving force of the first driver for rotating the first normal-reverse rotation roller pair in the direction opposite to the first specific direction from being transmitted to the conveyance roller pair. | 11-12-2015 |
493444000 | With reciprocatory folding knife | 6 |
20090221412 | SHEET FOLDING APPARATUS AND IMAGE FORMING APPARATUS USING THE SAME - A sheet folding apparatus includes: a fold roller pair which forms a nipping portion and inserts the center of a sheet bundle into the nipping portion to form a fold in the sheet bundle; a folding blade which moves from a standby position and presses the center of the sheet bundle against the nipping portion when the fold is formed, and returns to the standby position after the pressing of the nipping portion is completed; and a protection member which prevents an access to a front edge of the folding blade in a longitudinal direction of the front edge when the folding blade is located at the standby position. | 09-03-2009 |
20120208689 | SHEET FOLDING MECHANISM, SHEET FOLDING APPARATUS, AND IMAGE FORMING APPARATUS - A sheet folding mechanism includes a sheet conveying path that is curved in a sheet conveyance direction; a pair of folding rollers that are disposed at a downstream side of the sheet conveying path; an abutting stopper member that is disposed at the downstream side of the folding rollers in the sheet conveyance direction and that abuts and restricts a leading edge of a conveyed sheet; a flexure assist member that assists flexure forming of the sheet abutted to the abutting stopper member; a curved conveying guide plate that is located at the sheet conveying path; a movable stopper guide plate that is a part of the curved conveying guide plate as being movable along the sheet conveying path; and a control unit that performs control to vary a movement range of the movable stopper guide plate in accordance with size and folding mode of the sheet. | 08-16-2012 |
20130095991 | SHEET FOLDER - A sheet folder includes a blade for bending a sheet, a pair of folding rollers for sandwiching the sheet bent by the blade, a heating unit for heating a folded part of the sheet sandwiched between the pair of folding rollers by the blade, a temperature detection unit for detecting a temperature of the folded part, and a control unit for keeping a state in which the sheet is sandwiched between the pair of folding rollers until at least one of a temperature change and a temperature of the folded part that are detected by the temperature detection unit satisfies a prescribed condition after the blade allows the sheet to be sandwiched between the pair of folding rollers. | 04-18-2013 |
20140171285 | LOOP FOLDING SYSTEM FOR PROVIDING C, Z OR HALF-FOLD SHEETS - A system for selectively C, Z or half-folding sheet(s) of paper of variable format, comprising:
| 06-19-2014 |
20150336764 | FOLDING ROLLER WITH RUBBER-ELASTIC INSERTS - A folding roller for use in a folding device for folding a fold is disclosed. At the folding device a substrate to be folded is pushed into an inlet roller nip of folding rollers rotating in opposite directions by a folding knife for forming a fold. The folded-away substrate is transferred from the folding rollers to a belt line guided about the folding rollers and consisting of transport belts for the purpose of onward transporting the folded product. The folding roller in the regions in axial extension in which at least one transport belt at least partially wraps the folding roller includes at least one rubber-elastic insert. | 11-26-2015 |
493445000 | Reaction member comprising roller pair yieldably biased together | 1 |
20100190629 | METHOD AND APPARATUS FOR FEEDING AND FOLDING SHEETS - A method and apparatus are provided for feeding and folding sheets. Providing a folding blade having a free edge, reciprocably movable between a retracted position and a folding position, provided with blade surfaces adjacent to the free edge converging towards the free edge at a first angle in the folding position, and by further providing a pressing mechanism having pressing surface areas reciprocably movable between a retracted position and a pressing position, and enclosing in the pressing position a second angle larger than the first angle of the folding blade, allows an apparatus, having a pair of folding rollers and a sheet support, selectively to fold only an outer sheet from a set of sheets or to fold a set of sheets simultaneously. | 07-29-2010 |