Abstract: An image forming device for connection to first and second external devices, including a control unit having an alternate operation mode for performing alternating communication with external devices by switching communication at a predetermined cycle. During communication with one of such external devices, the control unit enables reception of commands and/or a print-start signal from that external device and refuses reception of commands and a print-start signal from another external device. When communication is changed over from one external device to another external device, the control unit provides an interval in which reception of commands and a print-start signal from both external devices is refused for a predetermined period of time.

Abstract: A control device manages an electronically actuated device for the purpose of ejecting liquids onto a substrate in a controlled manner.

Abstract: Devices for turning sheets in a rotary printing machine are described. The devices have a storage drum for handling sheets, which are each held by a holding device, and a turning drum is disposed downstream of the storage drum and has a holding device for engaging a rear edge of the sheet to be turned. An operation of detaching the sheet to be turned from the storage drum and carrying it along by the turning drum leads to the formation of a pressure reduction in an area formed between the sheet to be turned, the storage drum and the turning drum. The pressure reduction is compensated for by supplying ambient air, blast air and/or compressed air. The turning device has a channel and/or a passage orifice connected to an inner chamber of the turning drum. Via the channel and/or passage orifice air can be sucked and/or blown into the reduced-pressure area.

Abstract: The numbering machine comprises a series of cams (2) and a series of wheels (3), each cam (2) being connected with a wheel (3), so that the turning of a cam (2) signifies the turning of a wheel (3). The cams (2) have on their periphery nine projections (17) and a recess or hollow (18), while each wheel (3) has on its periphery the digits corresponding to the first nine numbers.

Abstract: At least one printer is connected to an image source such as a digital camera via a network. When the printer receives a notification from the image source to switch a first image displayed on a display device to a second image, the printer displays an identifier of the second image according to the notification, and lights up an LED on a print button provided on the printer. When a period in which the printer is permitted to print the displayed image reaches a set time before a timeout, the LED on the print button is flashed. When the timeout is reached, the LED is turned off. When the print button is depressed, the printer sends a request for an image to the image source, receives image data for the image sent from the image source, and prints the image.

Abstract: The present invention, generally speaking, provides a method and apparatus for accurately measuring a communications signal. In accordance with one aspect of the invention, DC offset effects and nonlinearities attributable to a communications amplifier are made spectrally separable from DC offset effects and nonlinearities attributable to the measurement apparatus. Spectral separability may be accomplished, for example, by adding an offset frequency to a local oscillator used by a downconverter of the measurement apparatus. As a result, the signal of interest is moved away from baseband (zero frequency) to the offset frequency. Similarly, other nonlinearities in the video amplifier (such as third order distortion) manifest theselves mostly at harmonics of the offset frequency. Hence spectral separability between the power amplifier characteristics and these nonlinear impairments of the measurement system is achieved.

Abstract: A control board controls operation of a plurality of ventilation fans and generates a fault signal upon occurrence of a predetermined fault condition. The control board includes a control circuit in a circuit board, an interface connector connected to the control circuit and mounted to the circuit board, and control connectors connected to the circuit and mounted to the circuit board. The control connectors are configured to connect the control circuit to ventilation fans or other components to be controlled. The control connectors are connected to a fault detection device of the control circuit operable to generate a fault signal upon occurrence of a predetermined fault condition at the control connectors.

Abstract: A proof press for the mounting of flexographic printing plates, comprising a printing cylinder, which is covered by a blanket for the mounting of at least one printing plate with double adhesive tape interposed, the printing cylinder being movable at right angles to its own axis in order to be placed in contact, along a generatrix, with a respective impression roller for performing proof prints, an optical system for collimating points of the impression roller with respective points of the printing plate by direct viewing, and a compression device for producing the forced adhesion of the printing plate to the double-adhesive tape and to the blanket.

Abstract: Since both an output setting value and an output subject identifier, which are contained by a setting program, are stored as one record into a drawing table, an output condition such as a layout of image data which is designated when a printing operation is carried out can be previously set before the printing operation is carried out. Since photograph numbers of image data stored in a memory card are defined in relation to output subject identifiers, such image data to be printed out can be designated.

Abstract: A floor printer has a printing device and a fiducial nozzle along a bottom of a housing. The fiducial nozzle deposits a marks on a medium. The printing device forms an image on the medium.

Abstract: A sheet conveying device includes an endless conveyor belt which has an electrode unit for retaining the sheet by using an electric force and which rotates while retaining the sheet so as to convey the sheet, a first electricity-supplying unit which applies a voltage to the electrode unit while it passes through a predetermined area, a second electricity-supplying unit which is disposed at a predetermined position which is upstream of the predetermined area and downstream of a position where the conveyor belt receives the sheet along a sheet-conveying path, and which applies another voltage to the electrode unit while it passes by the predetermined position, a detecting unit which detects a current or a voltage when the second electricity-supplying unit supplies electricity, and a determining unit which determines the state of the surface of the conveyor belt on the basis of the detected current or voltage.

Abstract: A printing plate for computer-to plate lithography having a metal substrate with an anodized surface portion. The anodized surface portion has a porous texture in which a radiation-absorbing composition, preferably a black dye, is deposited. The surface portion with the radiation-absorbing composition is covered with a hydrophilic polymer or a sealant both. Upon exposure to laser radiation, the underlying oleophilic anodized surface portion containing the radiation-absorbing composition is revealed. Alternatively, laser radiation of the polymer composition may cause the affinity of the polymer for water and ink to change so that an irradiated portion of the polymer becomes oleophilic while the non-irradiated portion remains hydrophilic.

Abstract: An image of a design pattern of wallpaper stored in a data base (DB) is viewed by a user computer of a user who is a general consumer or a contractor from a server computer provided in a head office of a wallpaper manufacturer through the Internet. Further, upon accepting an order of wallpaper from the user who saw the image by the user computer, the server computer fetches the image of the design pattern from the DB. A wallpaper printer then prints the image on a wallpaper sheet, thereby manufacturing the wallpaper desired by the user. The produced wallpaper is delivered to the user who gave out the order by, for example, a door-to-door delivery service.

Abstract: A protective and monitoring apparatus (20, 23) for monitoring and reducing shaft currents and shaft voltages on the generator shaft (19) of a generator (16) which produces electrical power, which protective and monitoring device (20, 23) is connected between a contact apparatus (21, 24), which makes contact with the generator shaft (19), and a grounding connection (22, 25) and comprises a parallel circuit formed by a resistance and a capacitance, with one end of the parallel circuit (26, 27) being connected to the contact apparatus (21, 24) and its other end being connected to the grounding connection (22, 25), said parallel circuit being protected against overvoltages on the generator shaft (19) and means (31) being provided for bridging the parallel circuit (26, 27) when an overvoltage occurs.

Abstract: A method for setting machine settings for a printing machine at a time selected from before and during printing of a printed product on a printing machine, includes providing for one of an operator of the printing press and a pressman to evaluate a printed result of a printed product produced in one of a production printing and a proof printing, and resetting the machine settings, if necessary; in dependence upon an enabling signal, storing prescribed input variables and machine settings, which define a print job, in a control system belonging to the printing machine; and applying the stored values for influencing future settings of the printing machine, even for other print jobs; a printing machine for performing the method; and a material for printing with the printing machine.

Abstract: A print system receives an image file and a print order file from a customer, the image file having an image data area and an order data area. The print system copies information of the received print order file into the order data area of the received image file. The print system produces a print of the image data in the image file according to the information in the order data area of the image file. The print system has a printer capable of producing a print of a predetermined image data provided by a third party as well as that of the image data of the customer. The print system delivers to the customer the print ordered by the customer as well as the print of the predetermined image data. The print system selects a group of orders among all the orders in accordance with the destination of delivery for controlling the printer to give priority to the group of orders in producing the prints.

Abstract: A method of synchronizing a printing-machine drive system having a plurality of drives with drive motors, includes assigning to the drives local drive control units and a central operating and control unit with a data processing system having components connected to communicate with one another. The drive motors are operated decentrally by prescribed drive data via the respectively assigned drive control units. Respective drive data are calculated, with at least one of the components of the data processing system of one of the drive control units, in dependence on computing operations required in other components of the data processing system. System-induced differences between the drives or system-induced differences between the components of the data processing system are compensated, in a resulting calculation. A printing machine is also provided for performing the method.

Abstract: If bus resetting occurs during transmission of printing data (ST21), a printer device is requested to transmit the information output before the occurrence of bus resetting by a STB (C18). Responsive to a request from the STB, the information input before the occurrence of the bus resetting is output from the printing device to the STB (R18). Based on the information input responsive to the request, printing data is again output from the STB to the printing device (C19). So, the system itself recognizes the information output by the STB before the occurrence of the bus resetting to re-initiate data transmission as from mid data (S14). Thus, data transmission is to be carried out in a shorter time even when the bus resetting occurs to shorten the entire printing time.

Abstract: A print image, such as for a franking apparatus, is composed of a number of elements to which different security levels are assigned. In a storage medium, and in a franking apparatus containing such a storage medium, for the print image, the image data are stored in a manner allocated to respectively different security levels.

Abstract: A maskable drive signal generator selectively generates one of n types of maskable drive signals for each main scan pass, and a drive signal masking section generates a drive signal to be supplied to ink-expulsion drive elements of a print head by masking the maskable drive signal according to a print signal. The printing of ink dots on each raster line is completed in n×m main scan passes while employing each of the n types of maskable drive signals m times on each raster line.