Abstract: An arrangement for controlling the printing in a mail-processing device has a print data controller for pixel data editing while printing with a print heads. The print data controller is composed of a pixel data-editing unit and a circuit including a DMA controller, an address is generator and a printer controller. The DMA controller allows access to the binary pixel data stored in the pixel memory in order to make the data available to the pixel data-editing unit in data strings. The address generator generates addresses that are supplied to the pixel data-editing unit for the selection of the binary pixel data from an intermediately stored data string and for grouping in the required sequence. The printer controller drives the pixel data-editing unit in order to supply the binary pixel data in groups to a driver unit for the print head.

Abstract: An arrangement for controlling the printing in a mail-processing device has a print data controller for pixel data editing while printing with a print head. The print data controller is composed of a pixel data-editing unit and a circuit including a DMA controller, an address generator and a printer controller. The DMA controller allows access to the binary pixel data stored in the pixel memory in order to make the data available to the pixel data-editing unit in data strings. The address generator generates addresses that are supplied to the pixel data-editing unit for the selection of the binary pixel data from an intermediately stored data string and for grouping in the required sequence. The printer controller drives the pixel data-editing unit in order to supply the binary pixel data in groups to a driver unit for the print head.

Abstract: A method for controlling the printing in a mail processing device proceeds on the basis of a word-by-word storage of binary pixel data in the pixel memory with a predefined number of successive data words forming a data string, and a predefined number of data strings representing at least one print image. This facilitates a modification of variable binary pixel data in the pixel memory when the sequence of the binary pixel data in at least a part of the respective data string coincides with the sequence of pixels in at least one corresponding print image column that is provided for the printing. After a word-by-word transmission of binary pixel data of a data string from the pixel memory by direct memory access (DMA), an intermediate storage of the data string ensues in a pixel data editing unit before a pixel data editing is implemented during the printing with an ink jet printhead.

Abstract: A configuration for identifying a switch position of a power switch for microprocessor-controlled appliances is provided. A switch connected in parallel with the power switch is to produce a switch-off delay which has no adverse effect on the interrogation of the switch position. The power switch contains two series-connected switches which can be opened or closed only jointly, with one contact of one switch being connected to one of the two live or neutral conductors, and its other contact being connected to a first input of a sensor which, when voltage is applied and the power switch is switched on, passes a measurement current to the second input of the sensor, which is connected to another one of the two live or neutral conductors. On the output side, the sensor transmits an output signal, corresponding to the switch position of the power switch to a microprocessor for the appliance.