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6622621 |
Device for detecting register marks
A device for detecting register marks includes at least one receiver for scanning register marks along a track disposed in a direction of movement of the register marks, and a device for...
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6622625 |
Medium detecting method and device, and printer
A reference medium is scanned both with a medium sensor ( 44 ) capable of detecting a low-transmittance printing medium with high accuracy and with a medium sensor ( 45 ) capable of detecting a...
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6609462 |
Method and device for controlling a transfer register in a sheet-fed rotary printing machine
A method of avoiding register differences during the operation of a printing machine having a plurality of individual printing units includes counteracting, at least by circumferential register...
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6604661 |
Method and apparatus for detecting web breaks
In web-fed rotary printing machines having a plurality of operating units arranged one after another, each unit having synchronously driven elements that interact directly or indirectly with the...
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6601503 |
Method and device for coupling in/out a cylinder in a printing machine
A method and apparatus for more simply and efficiently coupling and decoupling a cylinder in a printing machine. The coupling and decoupling apparatus includes a bearing bushing ( 11 ) in a fixed...
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6601505 |
Synchronous control apparatus of a rotary press for selecting a control target based on printing image information
To provide a synchronous control apparatus in a rotary press having a plurality of multicolor printing units to print the synchronous control apparatus including a printing image allocation setting...
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6591746 |
Registration system for printing press
A printing press may be provided with a first rotatable printing roller that prints ink of a first color on a web of material and causes a first pair of registration marks to be periodically...
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6588336 |
Method and system for producing screen data using a separate rip for each color
A method of producing screen data for imaging units of a printing machine includes the steps of breaking down raw image data into a plurality of partial images, respectively, corresponding to one...
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6553907 |
Multi-color printing press with common blanket cylinder
A multi-color printing press comprising a first print form cylinder; second print form cylinder; at least one first inking unit for inking the first and second print form cylinders; third print...
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6553906 |
Method and apparatus for sensing a register discrepancy in a multi-color printed item, and register control system and register marks
A method for sensing a register discrepancy (r) in a multi-color printed item, the position of at least one register mark ( 1, 1 ′) that is associated with one color being sensed with respect to...
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6550383 |
Independent cylinder drive system for a multicolor offset lithographic press
A series of offset perfecting press units are stacked for printing multicolor images on both surfaces of a web traveling successively therethrough. Each printing unit has two plate cylinders each...
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6539857 |
Five-cylinder offset printing units with adjustable spacing
An offset printing press includes a plurality of printing units. These printing units are typically each so-called five cylinder printing units. The spacing distance between two adjacent ones of...
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6539860 |
Synchronous control system for rotary presses
In a rotary press intended to perform the synchronous control of driving means with high precision, quickly stabilize rotation, and reduce spoilage caused by phase shifts, comprising a plurality of...
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6499397 |
Method of automatic register setting of printings in a rotary machine and device for working the method
Device and method for the automatic register setting of printings printed by plate cylinders in a rotary machine using inks of a plurality of colors. The printing machine particularly comprises a...
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6456311 |
Automatic registration and length adjustment
A method for registration of print separations in a printer comprising: (a) printing a first pattern, for which at least one image characteristic varies relatively weakly with misregistration,...
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6446553 |
Printing apparatus
A drive system for use with a printing apparatus is disclosed. The drive system includes a plurality of process units, with each unit being adapted for effecting a respective repeat operation on a...
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6427590 |
Drive for a printing press with a plurality of printing units
Drive for a printing press with a plurality of printing units mechanically interconnected through the intermediary of a gear train, the printing units being associated with respective drive motors...
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6382099 |
Printing apparatus and method for preventing barring or banding on a printed substrate
A method and apparatus for producing vignettes includes the use of a rotary printing member having an outer surface with a series of elongated printing dots. The lengthwise dimension of the dots...
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6343549 |
Network-type synchronous control system for rotary printing presses
A network-type synchronous control system for rotary printing presses in which a driving means of a printing section P and the driven part thereof are combined into a block, and control is...
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6327975 |
Method and apparatus for printing elongate images on a web
A web-fed offset printing press has printing units each comprising a plate cylinder, a blanket cylinder, and an impression cylinder, the impression cylinder being movable into and out of rolling...
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6327976 |
Method for detecting a rotation angle position of moveable cylinder of a printing machine
The rotation angle position of a moveable component, such as a cylinder, is detected or determined through a method in which the detected rotation angle position is modified using a correction...
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6272982 |
Apparatus and method for embossing and printing elongated substrates
An apparatus and method for printing and embossing elongated substrates provide for both length and position registration with respect to the printed and embossed patterns. The ink pattern to...
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6257142 |
Rotary printing press for production of multiple center spread signatures
Several printing units are arranged in a row for printing on as many separate webs traveling in centerline alignment and in phase with one another. At least one preselected web, on issuing from one...
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6253678 |
Method of printing to reduce misregistration
A method of printing using a press having first and second printing units and responsive to electronic data includes the steps of running the press to cause first and second printing units to...
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6244175 |
Single space rotary printing press for newspapers
A single space rotary printing press for newspapers includes a plurality of printing units arranged at different elevations, the printing units each having a plate cylinder with an annular gear at...
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6220157 |
Printing press with in-line central impression cylinders
A printing press includes a pair of in-line central impression cylinders which rotate about parallel axes. A web which is printed on the central impression cylinders is advanced from one of the...
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6209454 |
Multicolor rotogravure rotary press with first and second side printing towers
In a rotary rotogravure printing press for accomplishing the multicolor printing of first and second sides of a material to be printed, first side printing units and second side printing units are...
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6199480 |
Arrangement for determining register deviations of a multicolor rotary printing machine
An apparatus in a multicolor rotary printing machine for determining register deviations, including a scanning device disposed behind a print gap of a last printing unit of the printing machine; at...
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6192801 |
Measurement field group for detecting quality data in multicolor printing of single editions
A measuring field group for detecting quality data in the multicolor printing of single editions has measuring fields printed on a printed product in an optically scannable manner with at least one...
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6186064 |
Web fed rotary printing press with movable printing units
The present invention is directed to a multicolor web fed rotary printing press having printing units that can be moved along a linear section of a web by a positioning mechanism to allow easy...
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6155169 |
Method for printing bingo books
A method of printing on a web of paper includes the steps of providing the web, adjusting a tension on the web and sequentially printing each of a plurality of different indicia on defined...
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6148724 |
Selective flexographic printing
A web of paper is printed with selective non-variable information and vastly different variable information on portions of the paper web which are ultimately separated into discrete documents. At...
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6109183 |
Measuring field block for detecting quality data in the multicolor printing of single editions
A measuring field block for detecting quality data in the multicolor printing of single editions, which measuring fields (A1-D3) printed on a printed product in an optically scannable manner with...
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6101939 |
Rotary printing machine for security papers
The web fed or sheet fed printing machine for security papers, in particular banknotes, possesses a principal printing group. It further has an additional, independent printing group (20) placed...
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6085658 |
System and method for registration control on-press during press set-up and printing
A system and method for controlling registration between different printing plates or printing cylinders in a printing press which includes a camera with a lens having at least two zoom settings...
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6070529 |
Printing press with registration control
A printing press includes a plate cylinder defining a nip with an impression cylinder. A drive shaft is drivingly connected to the impression cylinder to rotate the impression cylinder. A first...
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6065400 |
Method for monitoring registration of images printed by a printer
The printer has at least two printing stations which cause images to be printed on a substrate. The printer is capable of registration adjustment. First and second patterns of spaced registration...
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6050189 |
Method for multicolor printing of nonabsorbent material, and a printing press for printing in accordance with the method
A method for multicolor printing of stock in web or plate form and having a smooth, nonabsorbent surface, includes printing on the stock by the indirect flexographic printing process; assigning...
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6050192 |
Process and arrangement for controlling or regulating operations carried out by a printing machine
A process and arrangement are disclosed for controlling or regulating operations carried out by a printing machine.
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6041707 |
Web-fed rotary printing machine
A web-fed rotary printing machine having a plurality of directly adjacent printing units. Each of the printing units has only one side wall, in which the printing group cylinders are float mounted....
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6022154 |
Image position error detection technique using parallel lines and embedded symbols to alert an operator of a mis-registration event
A method for detecting image position errors, includes forming a first pattern with a symbol embedded therein and a second pattern which, when superpositioned on the first pattern, exposes the...
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5992318 |
System for maintaining ink density
The invention is a system for a printing press which maintains the density of the colored ink put down on a moving paper web. The system includes a scanning device having a strobe light for...
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5979315 |
Flexographic printing selectively
A flexographic unit printing assembly and method of printing a web of paper using the assembly eliminates the need for one or more flexographic units without eliminating the capability to...
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5947023 |
Shaftless rotary printing press
A shaftless rotary printing press includes a plurality of individually driven printing stations and at least one separately driven folding unit. The drives which work with one folding unit in one...
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5937756 |
Tension control system for web in form printing press
A tension control system for a web in a form printing press permits arbitrary setting of tensions of a web at respective zones between an impression cylinder and respective rollers. The system...
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5931094 |
Web press twist registration correction
A twist registration machine for use in adjusting twist registration in printing presses of the type that comprise a plurality of aligned print towers mounted on a support, the twist registration...
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5927197 |
Tensioner and system for continuous printer sheet advancement
A tensioner and tensioning system for maintaining tension in a printer liner while providing manual advancement of the printer liner without accessing the inner compartment of the printer. A...
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5915300 |
Printing machine with a sheet-transport belt
A printing machine comprising a plurality of printing units (3) arranged in line one behind the other and an endless transport belt (4) for substrates to be printed, said transport belt running...
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5901647 |
Process for driving equipment e.g. a folding device for a rotary press
Various components in a rotary printing press are driven by suitable electric motors. Each component and its associated drive motor is provided with an angle position sensor. A tolerance range for...
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5865120 |
Diagnostic system
A diagnostic system for a rotary printing press utilizes signals from angular position detectors on press components to identify wear patterns. These signals are compared to press-idiosyncratic...
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