Abstract: In this invention, the relationship between the attachment position of a sensor and the formation positional shift of a color image is checked by moving a color misregistration detection sensor along an attachment position candidate line that is defined in advance in a direction perpendicular to the rotational direction of an endless-belt-shaped transfer body. A specific attachment position on the sensor attachment position candidate line, at which color misregistration of the color image at a side edge portion of the transfer body becomes equal to the maximum value of color misregistration at a portion except the side edge portion, is found. The sensor is fixed at a position that satisfies the specific attachment position and opposes the color image formation surface of the transfer body. Accordingly, the image forming apparatus is controlled to correct color overlay on the basis of the detection signal of the color image by the sensor.

Abstract: A water jet cutting device is used to cut a paper web into a plurality of partial paper webs. The water jet cutting device is placed between the output of a web-fed rotary printing press and the input of a folder which folds the plurality of partial paper webs.

Abstract: A flexographic rotary platen printing press for printing indicia on a web of flexible material moving along a longitudinal axis. The flexographic rotary platen printing press includes a print drum assembly that is affixed to a trolley that is moveable in a linear direction across the web generally transverse to the direction of the web movement. When the web is stopped, the print drum is caused to roll across the web that is sandwiched between the print drum and a flat, planar platen to print indicia onto the web in a line contact. A linear drive system causes the movement of the print drum assembly. The speed of the transverse movement is electronically coordinated to the speed of the rotation of the print drum as it moves across the web to carry out the printing operation.

Abstract: The invention is relates to a simple, inexpensive high capacity output catch tray for copiers and other document production machines. The output tray automatically increases in capacity as the stack of copies in it accumulates, without external power source or control, while maintaining a relatively constant elevation relative to the copier output port, and automatically returns to its original position when partially or completely unloaded.

Abstract: An identification card printer or laminator system includes a card transport mechanism configured to transport a card along a path, a printer or lamination mechanism configured to print or laminate the card, a print or lamination consumable supply, and a controller. The printer or lamination consumable supply includes a tag circuit that contains supply data including a tag security code. The controller is configured for communication with the tag circuit and is further configured to allow operation of the printer or laminator system with the consumable supply when the tag security code is valid, and to prevent operation of the printer or laminator system with the consumable supply when the tag security code is invalid.

Abstract: A direct-to-press imaging method comprises: (a) applying an imageable coating to a printing cylinder, wherein the imageable coating comprises a composition such as a thermally switchable polymer which changes affinity for a printing fluid upon exposure to imaging radiation such as infrared radiation delivered imagewise via a laser, and the imageable coating is substantially insoluble in the printing fluid; (b) imagewise exposing the imageable coating to actinic radiation to obtain an imaged coating; (c) printing a plurality of copies of an image from the imaged coating; and (d) reapplying the imageable coating as desired by repeating steps (a) through (c) at least once without substantially removing the prior imaged coating before reapplying the imageable coating.

Abstract: An image forming apparatus is constructed to include an image bearing member which is rotatably supported to bear a toner image, a light beam scanning section to simultaneously scan the image bearing member by a plurality of light beams so as to form an electrostatic latent image, a developing section to develop the electrostatic latent image into the toner image, a transfer section to transfer the toner image onto a recording medium, and an ON start timing adjuster to adjust an ON start timing of one of the plurality of light beams, based on an image tone of each of a plurality of patterns of an image pattern formed by the light beam scanning section.

Abstract: The present invention relates to a device for adjusting the width of a paper web at a rotary lithographic press and the object of the present invention is to prevent ink or specks of paper from becoming attached to contact parts of a pressing member so as to contaminate the surface of the paper web, and to enable straightforward fitting and removing of a rotatable pressing member. This configuration is therefore provided with one or more pressing members 1 with a plurality of contact members 11 provided integrally in a rotating manner so as to be capable of being mutually separated along the widthwise direction of a paper web W, a support shaft 20 supporting the pressing member(s) 1 in a rotatable manner, wavy surface adjustment means 2 capable of moving the support shaft 20 towards and away from the surface of the paper web W, and pressing member rotation drive means 4 for simultaneously rotating and driving the pressing member 1.

Abstract: A nanoimprinting apparatus for imprinting nanostructure on a workpiece. The apparatus comprises a frame, a platen, an embossing tool, and a separating tool. The platen is connected to the frame for separating the workpiece. The embossing tool is connected to the frame for imprinting nanostructure on the workpiece. The separating tool is connected to the frame for separating the workpiece and embossing tool. The separating tool has a workpiece engagement surface for engaging the workpiece when separating the workpiece and embossing tool. The embossing tool extends through the separating tool.

Abstract: A printer includes a cylinder pair that consists of a forme cylinder and a transfer cylinder. A satellite or steel cylinder forms a print position as it cooperates with the transfer cylinder of the cylinder pair. The form cylinder and the transfer cylinder are a fixed coupling driver assembly which is driven by a common drive motor. The drive assembly of the cylinder pair and a drive system for the satellite or steel cylinder can be selectively mechanically coupled with each other by use of a coupling.

Abstract: A device and method for synchronizing at least two printing-unit groups (2, 3) which represent a sheet-fed printing machine (1). Between the two printing-unit groups (2, 3) there is provided a transfer unit (10) being operable by means of a separately controllable drive (12). The present invention is used in sheet-fed printing machines assembled in serial arrangement.

Abstract: A form roller for use in an offset lithographic printing press comprises a stationary shaft and an eccentric roller supported on the shaft for rotation around the shaft and for oscillation along the length of the shaft. One or more cams are mounted on the shaft for controlling the operation of the rollers therealong. The exterior surface of the roller comprises an impregnated elastomeric material.

Abstract: A carrying device of the present invention is provided with a carrying mechanism for carrying a medium according to a target carry amount. Here, the carrying device: stores first correction information for correcting the target carry amount according to the target carry amount; receives information on the target carry amount from an outside section; corrects the target carry amount based on the first correction information and second correction information that is stored in the outside section and that is for correcting the target carry amount according to the target carry amount; and carries the medium with the carrying mechanism based on a corrected target carry amount.

Abstract: A method of dispensing a metal-backed printing blanket onto a printing press cylinder in a controlled fashion is provided. A carton containing the rolled printing blanket may be provided, and a lengthwise slit or opening is opened to withdraw a mounting end of the printing blanket. The alignment and tension of the printing blanket is controlled as it mounts on the printing press cylinder. Parallel reference lines on the carton may be used to draw alignment marks on the printing blanket such that it may be properly inserted into a locking device of the printing press cylinder. The alignment and tension may be controlled using graspable sides of the carton.

Abstract: A printing unit has at least four cylinders that form a printer. At least two of these four cylinders rotate independently of each other. At least one of the cylinders in the group of at least four cylinders has a set up rotational speed that is not zero and that is different from a production rotational speed of that cylinder.

Abstract: A cylinder covering (10) is described, having a lateral edge reinforcement (12), which is received partially overlapping on the cylinder covering (10), the cylinder covering (10) having an upper side (14) as the printing side, which is distinguished in that the lateral edge reinforcement (12), on the part (16) not overlapping with the cylinder covering (10), has at least one projection (18) having a projection terminus (20) on a lateral surface, which faces toward the upper side (14) of the cylinder covering, of the lateral edge reinforcement (12), the perpendicular from the projection terminus (20) on the plane of the overlapping part of the cylinder covering (10) running at least partially outside or precisely on the contour of the lateral edge reinforcement (12).

Abstract: Divided shaft members constitute a cleaning fabric take-up shaft, and are secured at both ends by shaft member fixing means that is attached to a side plate. Shaft member fixing portions include a shaft end supporter, for supporting the end of the shaft member, and a plug that is fitted to a shaft receiving section. A wedge portion is provided, which runs across the center of the shaft end supporter and is projected linearly. When this wedge portion is inserted between the shaft members, the diameter of the shaft is increased. At this time, the winding of the cleansing fabric is performed. To dispose of the wound cleaning fabric, the shaft members are detached from the shaft member fixing portions and the wedge is extracted from the shaft members, so that the diameter is reduced, and the cleaning fabric is disengaged from the shaft members. As a result, the cleaning fabric take-up shaft can be removed from the cleaning fabric roll.

Abstract: A multi-motor drive for a printing press having a plurality of printing unit groups, includes at least one motor provided for each of the printing unit groups, and gear trains via which the printing unit groups are synchronously driven. The gear trains are mechanically separated from one another during a printing operation. The at least one motor is assigned to a respective separation location between the printing unit groups. A method for driving a printing press is also provided.

Abstract: A printing unit is comprised of at least one counter-pressure cylinder and a transfer cylinder. A printing point is formed between the two cylinders when they are in contact. The counter-pressure cylinder is actuated by one drive motor independently of the transfer cylinder. In a print-on position, the counter-pressure cylinder is adjusted as a guide variable in relation to the power of the motor which drives the cylinder.

Abstract: A multicolor printing method using a plurality of ink drums each being loaded with a respective master and a system therefore are disclosed. A plurality of removable ink drums replaceable with each other are fed with respective masters by fixed master feeding devices smaller in number than ink drums via the replacement of the drums and are used for printing. The method and system of the present invention are low cost and enhance downsizing and accurate registration between the masters.