Abstract: A method for compensating for printing substrate deformation in a multicolor duplex printing operation by way of a computer. The substrate deformation that arises when individual color separations are printed onto the first and second sides of the printing substrate in the printing units is established and compensated for in the course of an automated register correction process. The computer calculates a forecast of the substrate deformation on a basis of the established first side deformation parameters of the printing substrate. When further color separations are printed onto the second side the forecast is used as an input parameter for a compensation of the substrate deformation of the second side.

Abstract: A method for compensating for printing substrate deformation in a multicolor duplex printing operation by way of a computer. The substrate deformation that arises when individual color separations are printed onto the first and second sides of the printing substrate in the printing units is established and compensated for in the course of an automated register correction process. The computer calculates a forecast of the substrate deformation on a basis of the established first side deformation parameters of the printing substrate. When further color separations are printed onto the second side the forecast is used as an input parameter for a compensation of the substrate deformation of the second side.

Abstract: Method of automatically controlling and regulating a chronological sequence of operations of a printing press includes initializing in RAM of a computer a list entered from ROM and having a table of all press operation data necessary for printing, including an assignment of times for actuating actuators to position data of the printing carrier, modifying the data entered into the list in accordance with data regarding the machine status, and with respect to process values relative to a position of the printing carrier at which a performance of an operation should start, a first press operation to be performed being defined and, included in the data for every operation is the operation to be performed preceding and subsequent thereto and, upon reaching a starting position of each actual operation to be performed in accordance with actual data from the speed sensor, with the data about the machine status and with the process values, and redetermining in the computer and entering into the list the data for the p

Abstract: Device for detecting a position of an actuator on a printing press includes two potentiometers having respective wipers connected to the actuator and driven with mutually different transmission ratios, the two potentiometers being serially connected in a measuring circuit, and an evaluation device connected to the measuring circuit for receiving signals therefrom corresponding to measuring-circuit voltages of the potentiometers and for determining therefrom the position of the actuator.

Abstract: A system for controlling sheet feed in a sheet-processing machine having a feed table with front stops thereon includes a scanning device in the vicinity of the front stops for detecting an arrival of a sheet thereat. An angle sensor is attached to a shaft of the sheet-processing machine. A computing/control device has a device for assigning scanning signals from the scanning means to respective angular positions .phi.actual with stored setpoint values .phi.setpoint, for computing positioning data for correcting a subsequent arrival of a sheet, if there is a deviation .DELTA..phi. between angular positions .phi.actual and the stored setpoint values .phi.setpoint, and for transmitting the positioning data to an actuating device.