Abstract: An image forming apparatus includes: an image forming section attached on an apparatus main body, having a forming and writing section that forms and writes an electrostatic latent image on an image carrier based on image information, and a transfer section which transfers a developed image after the electrostatic latent image has been developed, onto a sheet; a sheet conveyance section detachably attached on the apparatus main body, which conveys the sheet to the image forming section; a sheet detection section attached on the apparatus main body, which detects a sheet position conveyed to the image forming section by the sheet conveyance section; and a position correction section which corrects an image writing position for an image in the image forming section based on information of the detected sheet position.

Abstract: The above perforation device is equipped with a plurality of punches to punch holes on a sheet by a reciprocation motion; a holding board to hold the above punches in a line in the width direction of a sheet; a plurality of dies being arranged opposing to the above plurality of punches; two cranks being arranged at a drive shaft, rotate together with the above drive shaft, and being arranged with phases of an angle being displaced with each other in the shaft rotating direction; and two connection poles connecting with the above two cranks and the above holding board, wherein a differential perforation is carried out in such a manner that rotation of the above two cranks reciprocates the above punches, and during perforating cut-outs on a sheet, the above holding board reciprocates with phases at both ends being displaced, and the above plurality of punches carry out perforation of cut-outs with time difference from a punch at either end of the both ends to a punch at the other end successively.

Abstract: An item handling system includes a transport system defining a transport plane, a printer assembly defining a printer plane, and a printer alignment system supporting the printer assembly. The printer alignment system includes a plurality of drive elements configured to move the printer assembly. A method of aligning a printer in the item handling system includes moving the printer assembly to a limit position of the printer alignment system distal from the transport system using the drive elements, moving the printer assembly to a limit position of the printer alignment system proximate to the transport system using the drive elements, and driving each of the drive elements at a respective predetermined level to place the printer plane in a substantially parallel orientation with respect to the transport plane.

Abstract: There is provided a screen printer capable of concurrently, efficiently subjecting a plurality of substrates, including different types of substrates, to printing operation. In a screen printer 2 that makes up an electronic component mounting line 1 and that prints electronic component bonding paste on a substrate, a substrate conveyance section 8 that conveys a substrate 5 forwardly or backwardly in a direction of conveyance of a substrate is disposed at an intermediate position between a first screen printing section 7A and a second screen printing section 7B arranged symmetrically with respect to a center line CL. It thereby becomes possible to adopt a variety of substrate conveyance forms, as required, such as return conveyance for returning the substrate 5 from a downstream machine to an upstream side of the screen printer 2 and bypass conveyance for letting the substrate sent from an upstream side pass through the screen printer, to thus be conveyed to a downstream machine.

Abstract: There is described a method and an inking apparatus (50) for forming an ink pattern (80) on the surface of a form cylinder (15b) of a printing press, which ink pattern (80) exhibits, at least in part, a two-dimensional ink gradient extending in an axial direction and a circumferential direction on the surface of the form cylinder (15b). At least first and second chablon cylinders (20, 25) are placed one after the other along an inking path of the ink train (20, 25, 30, 31, 32, 33, 34, 35a, 35b, 36, 37) inking the form cylinder (15b) for distributing ink in the axial and circumferential directions and means (200, 201, 210, 211, 212, 250, 251, 260, 261, 262) are provided for subjecting the first and second chablon cylinders (20, 25) to cyclical oscillation movements in the axial direction and the circumferential direction.

Abstract: There is described a cylinder body (10) for orienting magnetic flakes contained in an ink or varnish vehicle applied on a sheet-like or web-like substrate, which cylinder body (10) has a plurality of magnetic-field-generating devices (50, 60) disposed on an outer circumference of the cylinder body (10). The cylinder body (10) comprises a plurality of distinct annular supporting rings (40) distributed axially along a common shaft member (20), each annular supporting ring (40) carrying a set of magnetic-field-generating devices (50, 60) which are distributed circumferentially on an outer circumference of the annular supporting rings (40).

Abstract: An anilox printing unit includes, as inking unit rolls, an ink applicator roll and an engraved roll mounted in rapid change roll sockets, for removing the engraved roll from the roll sockets and inserting another engraved roll into the roll sockets by an operator. The engraved roll is hollow and a temperature control fluid flows therethrough. The engraved roll and the ink applicator roll each have bearer rings. A device which presses the bearer rings of one inking unit roll against the bearer rings of the other inking unit roll has springs for compensating for diameter differences as a result of manufacturing tolerances between the bearer rings of the engraved roll and the bearer rings of the other engraved roll and for compensating for thermally induced diameter changes of the bearer rings of the engraved roll. A printing press having an anilox printing unit is also provided.

Abstract: Sheet registration method and system includes transporting a sheet including a leading edge and a trailing edge between a first and second sensor. The first and second sensors each have a linear sensing area with a longitudinal axis aligned at a non-zero angle to each other. The first and second sensors are adapted to identify positions of the leading edge and the trailing edge. An alignment of the sheet is adjusted responsive to a sheet length determined using the output from the first and second sensors.

Abstract: A method of printing an image that diffracts radiation is disclosed. The method includes assembling an ordered periodic array of particles on a substrate, wherein the array of particles diffracts radiation in a wavelength band dependent on viewing angle; printing an imaging composition onto a portion of the array in a configuration of an image; shifting the wavelength band of radiation diffracted and changing the refractive index by the printed portion of the array so that the printed portion diffracts radiation at a different wavelength band and reflectivity intensity from a remaining portion of the array; and fixing the printed portion of the array, such that the printed portion of the array diffracts radiation and exhibits the image.

Abstract: A printing screen unit including a printing screen having two pairs of opposite edges and a frame including interface members bonded to opposite edges of the printing screen and coupled together at corners of the frame, wherein the frame holds the printing screen in an untensioned state when no tension is applied thereto by external tensioning mechanisms separate to the frame, and the frame is substantially rigid when in the untensioned state, but allows for relative movement of the respective pairs of interface members by a tension applied by external tensioning mechanisms separate to the frame to tension the printing screen.

Abstract: A pad printing machine with a holder for a printing plate includes an ink supply device having a hollow body which rests with its front face on the printing plate during operation of the machine, a device for producing a relative movement between the printing plate and the hollow body, and a printing pad which can be pressed onto the inked printing plate and receives the ink from recesses in the printing plate and transfers the ink to an object to be printed. The drive assembly for the relative movement between the hollow body and the printing plate has a rotatably driven first cam and the drive assembly for the pad has a rotatably driven second cam, wherein both cams are arranged on a single control disc.

Abstract: A device for measuring and setting the web tension on a printing press with several inking units (Dn) has measuring means (Mm,n) for measuring the web tension and setting means (Fn) for setting the web tension, using which the web tension can be set actively in the case of unsteady web tension conditions. The measuring means (Mm,n) and the setting means (Fn) are disposed in such a manner that the web tension can be measured and set between the print areas of two inking units. A control device is provided, which controls the setting means based on the measured values of the measuring means (Mm,n).

Abstract: A printer has a substantially linear transport path P1 in which a card C is transported, roller 41 provided on the transport path P1 to transport the card C, roller 42 spaced apart from the roller 41 on the transport path P1 to transport the card C to the opposite side to the roller 41, cleaning roller 31 that is disposed opposite to the roller 41 on the transport path P1 and that has an adhesive portion for cleaning the surface of the card C, and control section 95 for controlling the rotation velocity of the roller 31 to rotate the roller 31 at least at rotation velocity V1 and at rotation velocity V2 lower than the rotation velocity V1, where the control section 95 controls the rotation velocity of the roller 31 from the rotation velocity V1 to the rotation velocity V2 for a period during which the front end of the card C reaches the roller 41 from the cleaning roller 31.

Abstract: A device for printing via screen printing an object which has a conical portion, the device includes a frame, a screen which can be moved relative to the frame, elements for rotatably driving the screen about a rotation axis, including a single motor, first members for moving the motor, the first members, extending in a first direction, second members for moving the motor, the second members extending in a second direction perpendicular relative to the first direction, the first members carrying the second members.

Abstract: An apparatus includes a reverse unit configured to wind a sheet printed at a print unit around the reverse unit and to reverse the sides of the sheet, and the reverse unit includes a winding rotary member having a cylindrical shape, and a skew correcting unit configured to correct skewing of sheets to be led into the winding rotary member.

Abstract: A printer has a carriage being movable between a first end and a second end of a reciprocating path; and a driving force transmitting path selecting mechanism provided at the second end of the reciprocating path. The selecting mechanism has: a common driving force outputting member; a plurality of force receiving members; a selecting member; and a position retainer for keeping the position of the selecting member. The selecting member connects the force outputting member to one of the plurality of force receiving members, and moves in association with the carriage when the carriage moves in a vicinity of the second end in a first direction extending from the first end to the second end. The position retainer keeps the position of the selecting member when the carriage moves in a second direction extending from the second end to the first end.

Abstract: A printing plate has a substrate, an array of cells on the substrate, wherein each cell corresponds to an element of a print image, a deformable polymer material localized into the cells such that each cell is at least partially formed from the deformable polymer material, a reservoir corresponding to each cell to collect the deformable polymer material as needed when the deformable polymer material is one of either melted or softened, and a heater to cause the deformable polymer material to either melt or soften.

Abstract: A sheet processing apparatus includes a first cylinder, second cylinder, third cylinder, first driving device, second driving device, third driving device, gap amount input device, and controller. The first cylinder receives a sheet from an upstream transport cylinder and holds the sheet. The second cylinder is disposed to oppose the first cylinder and prints/coats the sheet held by the first cylinder. The third cylinder is disposed to oppose the first cylinder and supplies ink/varnish to a circumferential surface of the first cylinder. The first driving device adjusts a gap amount between the first cylinder and upstream transport cylinder. The second driving device adjusts the position of the second cylinder with respect to the first cylinder. The third driving device adjusts the position of the third cylinder with respect to the first cylinder. The gap amount input device inputs the gap amount between the first cylinder and upstream transport cylinder.

Abstract: The invention relates to a method of printing panel material (2) with a printed image, whereby the panel material (2) is moved from a feeding station (5) into a printing station (3), in which an image is applied and out of which it is fed onwards in the transport direction (4) by means of a conveyor system (18). The panel materials (2) to be printed are disposed immediately one after the other in rows (36-38) in the transport direction (4) at least in an inlet region (32) to the printing station (3) and are fed jointly through the printing station (3) during the printing operation, and the printed image is applied by means of an inkjet printing device (13).

Abstract: A system for attaching mesh to a frame and applying tension to the mesh is described. The system includes a locking strip slot in a movable frame member that permits mesh and an attached locking strip to be inserted into the slot from the top. The locking strip may be asymmetric. The system further includes a rigid frame that can hold the movable frame member under tension. The system also includes gripping the movable frame member at the locking strip slot to apply tension to the mesh. A simple hand tool may be used for engaging the locking strip slot and leveraging against the rigid portion of the frame to apply the tension. A simple hand tool may be used for separating the movable frame member from the rigid frame to remove the mesh.