FIELD: information technology.
SUBSTANCE: first data and first integrity detection data, relating to said first data, are received from the main controller of the image forming device. The second integrity detection data is generated using both the second data, to be transmitted to the main controller of the image forming device, and the first integrity detection data. The second data and the second integrity detection data are transmitted to the main controller of the image forming device.
EFFECT: reduction of communication errors between the consuming unit and the image forming device.
14 cl, 10 dwg, 1 tbl
