Abstract: A printing device includes: a substrate feed-out section; a substrate transport section; a storage which stores the width size of the substrate; a skew correction section including a skew sensor which detects the skew of the substrate, and adapted to correct the skew of the substrate with reference to an output of the skew sensor and the substrate width size stored in the storage; an image recording section which performs an image recording operation on the substrate; a first sensor which detects a width size-changed portion of the substrate upstream of the skew correction section with respect to the transport direction; and a controller. Upon the detection of the width size-changed portion, the controller stops the substrate skew correction while continuously transporting the substrate. After the width size-changed portion of the substrate reaches a reference position downstream of the skew correction section, the controller restarts the skew correction.

Abstract: According to an automatic document feeder of a multifunction peripheral according to the present invention, two tilt sensors are provided in the middle of a document conveyance path to detect a tilt degree of a document being conveyed along the document conveyance path. Here, for example, if the positional deviation representing the tilt degree of the document is greater than a predetermined threshold value ?Ls, the conveyance of the document is stopped. On the other hand, if this is not the case, the conveyance of the document is continued. In addition, the threshold value is set in accordance with the width dimension of the document, and in particular, the larger the width dimension, the smaller the threshold value.

Abstract: A transport device includes: a medium support unit having a placement surface where a sheet-like medium is placed; a transport unit supplied with the medium placed at the placement surface and transporting the medium in a transport direction along a sheet surface of the medium; an ultrasonic transmitting unit provided at a part of the medium support unit and transmitting an ultrasonic wave; an ultrasonic receiving unit provided at another part of the medium support unit, and receiving the ultrasonic wave and outputting a received signal; and a floating detection unit determining whether a floating of the medium from the placement surface is present or not, based on the received signal.

Abstract: A metal strip stabilization apparatus includes: a displacement measurement unit configured to measure a displacement of a metal strip during traveling in a non-contact manner; a control unit configured to generate a vibration suppression signal and a position correction signal based on a measurement signal; and an electromagnet unit including: a vibration suppression coil configured to generate a first magnetic force based on the vibration suppression signal; a position correction coil configured to generate a second magnetic force based on the position correction signal; and a core about which the vibration suppression coil and the position correction coil are wound concentrically, the core leading the first magnetic force.

Abstract: A belt-shaped material conveying apparatus that supports a belt-shaped material conveyed in a conveying direction to a wind-up roll at a carrying-out side from a feed roll at a carrying-in side between these rolls in a noncontact state by air streams spouted to the belt-shaped material from support pads disposed to face a top surface side and an undersurface side of the belt-shaped material respectively, includes a pair of hydraulic cylinders as tilt means that tilts the support pad in the width direction of the belt-shaped material which crosses the conveying direction of the belt-shaped material.

Abstract: The present disclosure is a conveyor device which feeds a thin workpiece from an unwinding roll and conveys the thin workpiece on a conveyance path. The conveyor device includes first movable holding members, fixed holding members, a cutting device, second movable holding members, a first position sensor, and a first correction mechanism.

Abstract: A printing system and method are provided. The printing system includes an image forming station for temporarily deposit an image on an intermediate transfer member when the intermediate transfer member in the image forming station is in a first temperature range. The system further includes a drying station configured to increase a temperature of the intermediate transfer member from a first temperature in the first temperature range to a second temperature in a second temperature range, the second temperature being substantially higher than the first temperature. The system further includes an impression station configured to transfer the temporarily deposited image from the intermediate transfer member onto a substrate when the intermediate transfer member in the impression station is in the second temperature range. The system further includes a cooling station for retaining a coolant configured to revert the intermediate transfer member to a temperature in the first temperature.

Abstract: A fabric guiding device (1) for a weaving machine, having automatic clampers (6), (7) to release or secure a bridge, for example an upper bridge (2) and/or a lower bridge (3). On the other hand, a method for releasing and re-clamping a bridge of a fabric guiding device of a weaving machine. Preferably suitable for use in a weaving machine. More particularly, for use in a face-to-face weaving machine.

Abstract: The belt conveyance device includes an endless belt member, and a steering roller that stretches the belt member and has a tiltable rotation axis. The steering roller includes a roller that slides on the belt member and rubbing members that rub against the belt member at both ends of the roller. One or a plurality of recessed portions is formed in the surface of each rubbing member in an area where the surface of the rubbing member is opposed to an inner surface of the belt member.

Abstract: An image forming apparatus includes an image forming portion, an endless belt and a plurality of stretching rollers. The stretching rollers includes a tiltable steering roller, a sliding member, a first stretching roller having a smallest diameter, and a second stretching roller having a largest diameter of the diameters. With respect to rotational axis directions of the stretching rollers, lengths of contact portions of the stretching rollers with the belt are shorter than a width of the belt, the length of the contact portion of the first stretching roller with the belt is a first length, the length of the contact portion of the second stretching roller with the belt is a second length shorter than the first length, and end positions of the contact portions of the first and second stretching rollers with respect to the rotational axis direction are different from each other.

Abstract: The present disclosure is a conveyor device which feeds a thin workpiece from an unwinding roll and conveys the thin workpiece on a conveyance path. The conveyor device includes first movable holding members, fixed holding members, a cutting device, second movable holding members, a first position sensor, and a first correction mechanism.

Abstract: The invention relates to a device (30) for separating at least two strands of material (12a, 12b) from the cutting of a strip of material moving continuously, characterized in that the device includes a spreader (32, 33) for spreading the strands of material apart in a transverse direction (v) extending in the movement plane (P2) of the strands of material, perpendicularly to the movement direction of said strands of material.

Abstract: A sheet conveying device, which is included in an image forming apparatus and a post processing device, includes a position detector configured to detect a position of a sheet, a sheet conveying body, a fixed body, a movable body configured to move, relative to the fixing body, between a first position and a second position different from the first position, and an index mounted on the fixed body. The sheet conveying device further includes a data storing device, a conveyance positional deviation calculator configured to calculate a positional deviation amount of the sheet to the reference sheet conveyance position, a detected positional deviation calculator configured to calculate a positional deviation amount of the position detector to the index based on a result of the position detector, and a reference position detector configured to correct the reference sheet conveyance position based on a result of the detected positional deviation calculator.

Abstract: A processing system and a method for processing a flexible substrate (e.g., a web) use a tensioner with a vacuum plate that can be moved along a transport direction of the flexible substrate with an indexer that intermittently moves the flexible substrate for processing. The tensioner and the indexer are controlled so that a relative speed between the indexer and the vacuum plate of the tensioner is maintained above a predefined threshold under all working conditions, even when the flexible substrate is stopped.

Abstract: A method influences the geometry of a rolled item in a controlled manner. In the method, the rolled item is transformed from an initial condition into an intermediate or final condition by rolling with the aid of a rolling stand having at least one processing assembly. An improvement in the geometry of the rolled item, particularly during processing of asymmetric rolled items, is achieved in that the at least one processing assembly is operated in a force-controlled manner on the basis of a desired force.

Abstract: Provided is a belt circling device including a belt supported to be capable of circling by plural rotating members provided rotatably on side plates, a displacement member that is displaced while being in contact with the belt, a correction unit that includes a contact member that is in contact with the belt on an upstream side or on a downstream side from the displacement member in a circling direction of the belt and a movement section that causes the contact member to be movable in an intersecting direction intersecting with the circling direction and that corrects a deviation of the moving belt, and a connection member that is provided on the side plate, is displaced with respect to the side plate with following the displacement member, and connects the displacement member and the movement section to each other.

Abstract: An electromagnetic stabilizer includes a first and a second plurality of electromagnets aligned along a transversal direction orthogonal to a feeding direction of the strip. The first and second plurality of electromagnets are mutually arranged in a position mirroring the theoretical feeding plane. Each of the electromagnets includes: a core provided with at least a first and a second pole; a first and a second coil wound about the first and second poles, respectively; two power sources to supply the coils, respectively, so as to generate a first and a second magnetic field, respectively; and at least one concentrator made of ferromagnetic material connected to the core and arranged so as to make the first and the second coil magnetically independent of each other.

Abstract: A system and method are provided for implementing an automated process that independently manipulates a plurality of span-wise discrete individual pressure actuators in a movable pressure assembly associated with a nip-based drive unit to drive tensioned web continuous feed image receiving media in web-based printing devices. The disclosed process varyingly adjusts a relative pressure of between the opposing rolls to address a detected wrinkling condition. A closed loop detection and control scheme is provided in which, based on a determination that wrinkling is occurring in tensioned web continuous feed image receiving media, and isolation of a spanwise location in which the wrinkling is occurring, differential signals may be sent to one or more of a plurality of span-wise discrete individual pressure actuators in a movable pressure assembly to varyingly adjust a relative pressure of the two opposing rolls across a spanwise pressure nip.

Abstract: The electromagnetic vibration suppression device includes a plurality of electromagnet pairs arranged in the width direction of a steel plate and which suppresses vibration of the steel plate running between electromagnets in each electromagnet pair using a control unit. The pseudo displacement calculation means calculates a pseudo displacement amount for the steel plate on the basis of the switching between ON and OFF of a sensor attached to the electromagnet pairs. The pseudo edge position calculation means calculates a pseudo edge position for the steel plate on the basis of the pseudo displacement amount. The current amount control means individually controls the amount of current that flows to the electromagnets on the basis of the pseudo edge position.

Abstract: The advantage of the invention is to provide a medium feed device and the like for intermittently feeding a recording medium in which meandering can be securely corrected without the occurrence of wrinkles in the recording medium. The medium feed device has a meandering detection sensor which detects position displacement of a recording medium in a width direction, and a control section which controls driving of a width movement unit based on detection results by the meandering detection sensor. The control section stops driving of the width movement unit when stopping feeding of the intermittent feeding.

Abstract: Systems and methods are provided for predictively compensating for frequency-based shifts of the position of a web of print media in a continuous-forms printer. The system comprises a sensor and a controller. The sensor is able to detect lateral shifts of the web of print media traveling through the continuous-forms printer. The controller is able to identify a frequency of the lateral shifts of the web, and to steer the web based on the frequency.

Abstract: A web meandering correction system (1) includes: an edge detector (2) that detects an edge position signal of a web; an HPF processing unit (3) that executes a high-pass filtering process on the edge position signal using a predetermined lower limit frequency as a reference; a high-frequency noise analyzing unit (4) that analyzes high-frequency noise that has passed through the HPF processing unit (3); an LPF processing unit (5) that executes a low-pass filtering process on the edge position signal using a predetermined upper limit frequency as a reference; a coefficient setting unit (6) that sets a coefficient that determines the characteristics of the low-pass filtering process on the basis of a result of analysis by the high-frequency noise analyzing unit (4); and a meandering correction unit (7) that corrects meandering of the web on the basis of information acquired by the LPF processing unit (5).

Abstract: A sensor controller for web handling applications is described. The sensor controller is provided with a first port, a second port, a computer readable medium, and a processor. The first port receives a sequence of data frames capturing an area of a material web having a width to height ratio between 0.10 and 100. The computer readable medium stores logic indicative of identifying properties of a first group of data points of a feature of the material web extending in a web direction of travel. The processor scans the sequence of data frames to locate a transition between a property of the first group of data points and a property of a second group of data points in the data frames and generates a series of location signals indicative of lateral locations of the transition within the data frames. The second port outputs the location signals.

Abstract: A sheet feeding apparatus includes a conveyance unit configured to convey a sheet supplied from a holding unit, a sensor configured to detect an edge of the sheet in a width direction, and a control unit configured to detect, with the sensor, a displacement of the edge of the sheet in the width direction during movement of the sheet by a predetermined distance, and to cancel a subsequent skew detection operation if the displacement is larger than an allowable amount.

Abstract: An image-forming device includes a conveying part, an image-forming part, first through third sensors, and a control part. The conveying part is configured and arranged to convey a continuous recording material. The image-forming part is configured and arranged to form an image on the recording material conveyed by the conveying part. The first through third sensors are configured and arranged to detect positions of an edge surface of the recording material conveyed by the conveying part. The control part is configured to calculate first through third shifting amounts based on the positions of the edge surface of the recording material simultaneously detected by the first through third sensors, respectively. The first shifting amount is generated by movement of the recording material, the second shifting amount is generated by rotation of the recording material, and the third shifting amount is generated by fluctuations in the edge surface of the recording material.

Abstract: A sheet conveying device that more appropriately corrects a positional deviation for a sheet and reduces the time required for a correction of the positional deviation. The sheet conveying device includes a guide unit, for guiding the edges of the sheet that is conveyed and for correcting a positional deviation, and a buffer unit located upstream of the guide unit to form a slack for the sheet, so that one part of the slack formed by the buffer unit is guided by the guide unit. The buffer unit includes an upstream roller pair and a downstream roller pair, and a slack for the sheet is formed between the upstream roller pair and the downstream roller pair.

Abstract: The advantage of the invention is to provide a medium feed device and the like for intermittently feeding a recording medium in which meandering can be securely corrected without the occurrence of wrinkles in the recording medium. The medium feed device has a meandering detection sensor which detects position displacement of a recording medium in a width direction, and a control section which controls driving of a width movement unit based on detection results by the meandering detection sensor. The control section stops driving of the width movement unit when stopping feeding of the intermittent feeding.

Abstract: An edge guide is provided. A structure includes curved surface over which a print media can travel. The print media includes a first edge and a second edge that is opposite the first edge. A first media guide is contactable with the first edge of the print media. A second media guide is contactable with the second edge of the print media. The second media guide is spaced apart from the first media guide. A relative spacing between the second media guide and the first media guide is adjustable such that a distance between the first media guide and the second media guide is variable. The second media guide includes a mechanism that applies a nesting force to the second edge of the print media to cause the first edge of the print media to move toward and contact the first media guide.

Abstract: A method of adaptive guiding of a web on a roller is disclosed. The method includes computing an output of a reference model, reading an output of a sensor that indicates a web position, determining a difference between the output of the reference model and the output of the sensor, and updating a set off controller parameters for the roller based on the difference.

Abstract: A medium conveying apparatus includes: a conveying mechanism that conveys a recording medium that extends long continuously in one direction, a conveying direction of the recording medium being the same as the one direction; a detecting unit that detects a detection subject mark formed on the recording medium; and a moving mechanism that moves the detecting unit in a direction that crosses the conveying direction, and a plurality of detection subject marks are formed on the recording medium in such a manner that they are arranged in the direction in which the recording medium extends long continuously and that a mark width in the direction that crosses the conveying direction changes as the position goes along the conveying direction.

Abstract: An apparatus for manufacturing absorbent articles includes: a detecting section detecting an edge position of a continuous sheet in the width direction when the detecting section is stopped at a stop position, a meandering correcting section correcting meandering of the continuous sheet, a motor moving the detecting section in the width direction, and a controller controlling the motor based on a movement signal related to movement of the detecting section. The controller has a value corresponding to a distance from a reference position to each stop position, moves the detecting section to each stop position based on the corresponding value and the movement signal. The controller detects that the detecting section reaches the reference position based on a current of the motor. The reference position is a limit position for physical movement in the width direction of the detecting section, and is at or outside the outermost stop position.

Abstract: A film substrate conveying device is a device for conveying a belt-like film substrate while placing the film substrate upright, with one end part thereof being on an upper side in a width direction thereof. The film substrate conveying device has at least a pair of first grip rollers disposed to sandwich an upper end part of the film substrate therebetween; and a first angle adjusting mechanism capable of adjusting an inclination direction and an inclination angle of the first grip rollers to be capable of inclining a rotation angle of the first grip rollers such that a rotation direction of the first grip rollers is on an upper side with respect to a conveying direction.

Abstract: There is provided a method of winding up a transfer film and a device for performing transfer printing on printed sheets of paper, capable of eliminating the need to frequently replace the transfer film, thereby allowing the transfer film to be used over a prolonged time. According to the method of winding up a transfer film, the transfer film fed from a feed roll through a feed path is pressed onto a fed printed sheet to transfer patterns of the transfer film, and then the transfer film is wound up onto a windup roll through a windup path. During the rewind of the transfer film from the windup roll to the feed roll, a lateral position of the transfer film running along the feed path is detected, and the feed roll is moved in its axial direction to follow a lateral positional change of the transfer film.

Abstract: A band is introduced into the pit entrance of a looping pit. This band is released from the looping pit at a pit exit. A segment of the band can thereby be buffered. The entrance-sided drag that exists in the band at the pit entrance is measured by an entrance-sided drag measuring device; the exit-sided drag that exists in the band at the pit exit is measured by an exit-sided drag measuring device. The values of the entrance-sided and exit-sided drags are passed to a control device. Depending on the entrance-sided and exit-sided drags, a control signal for at least one driven roller arranged between the pit entrance and exit is identified by the control device and is passed to the at least one driven roller. The band buffered in the looping pit is acted upon by the at least one driven roller according to the control signal.

Abstract: An apparatus for controlling the lateral displacement of at least one material web, comprising one roller pivoting about a shaft, which roller comprises laths that extend in the direction of the shaft and that are arranged in circumferential direction of the roller, whereas each lath is mounted in such a way that it can be moved in the direction of the shaft. Furthermore the roller comprises at least one lath guiding device on which the movable laths are guided, whereas the lath guiding device comprises for each lath a respective region for guiding each individual lath. According to the invention the roller comprises at least one lath securing device which is used to protect the laths from being detached from the apparatus when the region for guiding the respective lath is defective, whereas the lath securing device comprises for each lath a respective region for securing each individual lath.

Abstract: An edge guide includes a fixed surface over which a print media can travel, a surface that is contactable with an edge of the print media, and a mechanism that is configured to apply a nesting force to the print media to cause it to move toward the surface that is contactable with the edge of the print media. The force, that is applied to the print media by the mechanism, has a magnitude that is adjustable.

Abstract: An edge guide is provided. A structure includes curved surface over which a print media can travel. The print media includes a first edge and a second edge that is opposite the first edge. A first media guide is contactable with the first edge of the print media. A second media guide is contactable with the second edge of the print media. The second media guide is spaced apart from the first media guide. A relative spacing between the second media guide and the first media guide is adjustable such that a distance between the first media guide and the second media guide is variable. The second media guide includes a mechanism that applies a nesting force to the second edge of the print media to cause the first edge of the print media to move toward and contact the first media guide.

Abstract: A web alignment method and apparatus for a printing system that includes a friction drive, wherein the alignment device provides one or more of the following: a) a stable medium path with reduced web-walk, b) an alignment system that is not sensitive to the mechanical alignment of an upstream device such as a roll unwinder, c) an alignment system having a lower complexity and lower cost than active controlled systems, and d) an alignment system that is compatible with a wide range of media, ranging from lightweight papers (for example 60 gsm) to heavyweight stock (such as 300 gsm) including high weight high gloss coated grades. The alignment device includes an arrangement for supporting the web in an arcuate form between adjustable side guides.

Abstract: A web conveying apparatus that conveys a web, includes: a transverse position displacement detection unit that detects a transverse position displacement of the web; a transverse position correction unit that corrects a transverse position of the web by a guide roller; width detection units that detect a width size in a left-right direction of the web; and a control unit that controls the transverse position correction unit in accordance with the transverse position displacement detected by the transverse position displacement detection unit and performs feedback control to position the web in a target position. The control unit changes a correction amount in the feedback control in accordance with the width size of the web detected by the width detection units.

Abstract: A film transport apparatus includes: an edge sensor that detects a lateral position deviation of a film; a lateral position correction device that corrects a lateral position of the film with a guide roll; a tension sensor that detects tensions applied respectively near left and right ends of the film; and a control unit that executes feedback control such that the lateral position correction device is controlled on the basis of the lateral position deviation detected by the edge sensor so that the film is located at a target position. The control unit changes the feedback control based on a left and right tension difference, which is a difference between the tension applied near the left end of the film and the tension applied near the right end of the film, the tensions being detected by the tension sensor.

Abstract: A guiding apparatus and method for a shift generated by a web during web transportation is provided, in which a coarse position guiding module and a fine position guiding module function to directly adjust the web so as to compensate the shift occurred during the process of transportation according to a position of the web. By means of monitoring a location of the fine position guiding module at any time, a reference of the coarse position guiding module will be adjusted when the location of the fine position guiding module satisfies the condition defined in the guiding method, so as to change a position where the web enters into the fine position guiding module.

Abstract: An inkjet printer containing a print zone and an inkjet printhead for printing on a substrate in the print zone, a supply unit for storing and delivering the substrate for printing, and a transport unit for transporting the substrate from the supply unit to the print zone, in which printer the supply unit contains a number of substrate holders, each holding a roll on which a substrate web is wound, each substrate holder being operatively connected to a sensor for detecting the end of the web in the substrate holder corresponding to that sensor, wherein the transport unit includes a first transport means for engaging and transporting the substrate emerging from the supply unit, a downstream, second transport means for further transporting the substrate and positioning the same in the print zone, and a guide element rotatably disposed between the first transport means and the second transport means.

Abstract: An automated paper handling system for sending print media through a printer comprising a scan module for scanning print media and producing raw data regarding characteristics of the print media. The paper handling system also has a controller comprising a memory and a processor for receiving and processing the raw data to produce an information set. One or more connection ports connect the controller to a group of equipment, the group may comprise a printer, a paper detector, a cutting system, or an alignment system.

Abstract: An apparatus for deflecting a printing material web coming from a printing press that is cut into at least two individual webs to laterally arranged processing devices. The apparatus includes a respective load-bearing frame for each individual web. A respective deflection rod and a respective longitudinal regulation roller for each individual web is supported on the load bearing frame. The deflection rods and longitudinal regulation rollers are adjustable relative to the load-bearing frame in a direction transverse to or parallel to a running direction of the respective individual web.

Abstract: A membrane applicator comprises a wheeled carriage adapted to ride on a surface to be covered with the membrane. A roll mount system is provided on the carriage to support a roll of membrane thereon. A press roll is mounted to the carriage for pressing the membrane against the surface to be covered as the membrane is being unrolled from said roll mount system as a result of a displacement of the carriage on the surface. The applicator is particularly well suited for applying bituminous membrane on flat roof surfaces of commercial and industrial buildings.

Abstract: An apparatus for roll-to-roll processing includes a first roller for converting the transmission of a roll of flexible material from a first direction to a second direction substantially orthogonal to the first direction, a second roller spaced apart from the first roller and extending transversely with respect to the first roller for converting the transmission of the roll of flexible material from the second direction to a third direction substantially orthogonal to the first direction and the second direction, and a third roller spaced apart from the second roller and extending perpendicularly with respect to the first roller for converting the transmission of the roll of flexible material from the third direction to a fourth direction, wherein the roll of flexible material includes a first side and a second side, and wherein the first roller, the second roller and the third roller contact the same one of the first side and the second side of the roll of flexible material.

Abstract: A method and apparatus for web tracking adjustment for a web handling system comprises biasing a steering roller in a gimbal direction, and adjusting the bias to achieve the desired tracking.

Abstract: A web printer has a buffer for adjusting the traveling position of the web under its slack status, a tension assigning unit for assigning fixed tension to the web delivered from the buffer, a device for detecting the traveling position of the web delivered from the tension assigning unit, a sew correction unit for adjusting the skew of the web according to the output from the detection device, and an image forming unit that forms images on the web.

Abstract: The invention pertains to the electrical contacting of a continuously moving metered material web (7), in particular a flexible flat cable, a so-called FFC, during its processing or manufacture.

Abstract: Apparatus for automatically presenting a generally pre-needled textile sheet coming from an upstream module and intended to feed a cross-layer module, the apparatus comprising means for measuring the positions of the longitudinal edges of the textile sheet, means for adjusting the width of said textile sheet, means for adjusting the position of said textile sheet, and processor means responsive to the position measuring means to control the adjustment means in real time in such a manner that the textile sheet presents determined width and position.