Printer, supplied power controller and computer program

摘要

A printer includes: an inkjet print head; an image processing part that processes image data and supplies the data to the print head; a main power supply that is connected to a commercial power source and supplies first power to the print head; a rechargeable sub-power supply that supplies second power for supporting the first power to the print head when power necessary for driving of the print head exceeds the first power during execution of printing; and a switch part that is located on a power supply line and electrically connects the sub-power supply to the power supply line when the power necessary for driving of the print head exceeds the first power.