Patent ID: 6609792
Filing Date: 2003-08-26
Classification: B41J

Abstract:
An ink-jet printer, comprising:a printer body; a print head unit that includes a print head for performing printing onto a recording medium and a carriage on which the print head is mounted; a control circuit that is provided in the printer body separately from the print head and controls the print head unit; a receiver circuit that is provided on the carriage and receives a signal from the control circuit; a first transmission member that converts drive data for the print head into a light signal and transmits the light signal, the first transmission member being provided in the control circuit; a first reception member that receives the light signal transmitted from the first transmission member and converts the light signal into an electric signal, the first reception member being provided in the receiver circuit; a second transmission member that converts status data for the print head unit into a light signal and transmits the light signal, the second transmission member being provided in the receiver circuit; a second reception member that receives the light signal transmitted from the second transmission member and converts the light signal into an electric signal, the second reception member being provided in the control circuit; and an optical fiber through which the light signal from the first transmission member and the second transmission member is transmitted to the first reception member and the second reception member, respectively.