| abstract |
The image printing device includes a print head for printing an image. A microcontroller including a wafer substrate is provided. The processor circuit is located on a wafer substrate. A printhead interface circuit is also located on the wafer substrate and is connected between the processor circuit and the printhead. The printhead interface circuit is configured to facilitate communication between the processor circuit and the printhead. Since a bus interface circuit separate from the printhead interface circuit is connected to the processor circuit, the processor circuit can communicate with devices other than the printhead via the bus. [Selection diagram] FIG. |