Abstract: In the print data for a nozzle of a printer, white dots are replaced by pre-ejection pulses. One or more repetitions of the pre-ejection pulses may be inserted into the print data, depending on the actual print speed of the printer, to determine print speed-dependent print data with which the nozzle is activated to print a print image with high print quality.

Abstract: A controller adapted for an inkjet printing system is described. The controller can include an analyzer and a prefire inserter. The analyzer can be configured to determine whether a nozzle arrangement should generate a fire pulse in a current line, and whether the last preceding fire pulse was further in the past than an interval value threshold N. The prefire inserter can be configured to insert one or more prefire pulses into the N lines before the current line.

Abstract: A controller adapted for an inkjet printing system is described. The controller can include an analyzer and a prefire inserter. The analyzer can be configured to determine whether a nozzle arrangement should generate a fire pulse in a current line, and whether the last preceding fire pulse was further in the past than an interval value threshold N. The prefire inserter can be configured to insert one or more prefire pulses into the N lines before the current line.

Abstract: In a converter unit to convert control information to be transferred between at least first and second processing units of a printing or copying system, at least one first data interface is provided according to a first interface standard for exchange of control information between the converter unit and at least the first processing unit. A control signal interface is provided for at least one signal line between the converter unit and the first processing unit, the signal line being associated with one control signal. At least one real-time-capable second data interface according to a second interface standard is provided for exchange of control information between the converter unit and at least the second processing unit. The converter unit converts data conforming to a signal state of the control signal into data according to the second interface standard and conforming to the real-time-capable second data interface.

Abstract: In a converter unit to convert control information to be transferred between at least first and second processing units of a printing or copying system, at least one first data interface is provided according to a first interface standard for exchange of control information between the converter unit and at least the first processing unit. A control signal interface is provided for at least one signal line between the converter unit and the first processing unit, the signal line being associated with one control signal. At least one real-time-capable second data interface according to a second interface standard is provided for exchange of control information between the converter unit and at least the second processing unit. The converter unit converts data conforming to a signal state of the control signal into data according to the second interface standard and conforming to the real-time-capable second data interface.