A head up display device for a vehicle, includes a display, a reflective member, a stepping motor, and a control part. This solves the following problem inherent to a conventional ink jet printer which recovers ink not used for printing: since an air pump for supplying air to air-purge the print head and an air pump for supplying air to air-purge the ink tank are required, the cost and weight of the printer tends to increase. In a blanking period, the data signal line is cut off, and in the selection-scanning period of a scanning signal line to be scanned first, the scanning signal line to be scanned next is also subjected to the selection-scanning. The device further includes a camera, illumination device, power source, and memory storage device.