Patent ID: 7698471

Claim:
A print system which includes a printer arranged to connect to a host computer via a communication interface, wherein the printer includes a read-out unit for reading out image data from a recording medium on which the image data is recorded, an operation panel having thereon a print start button, a print setting button, and a preview display button, a printer engine for performing printing, and a print control unit for, in response to depression of the print start button, generating print data from the image data read out by the read-out unit in accordance with print settings provided based on operation of the print setting button, and for causing the print engine to print the generated print data, the printer further comprising: a print setting event transmitting unit for transmitting the image data read out by the read-out unit to the host computer via the communication interface if the preview display button of the operation panel is depressed, and for generating a print setting event and transmitting the generated print setting event to the host computer, if the print setting button is operated after the preview display button is once depressed; a print start event transmitting unit for generating a print start event and transmitting the generated print start event to the host computer, if the print start button is operated after the preview display button is once depressed; and a receiving unit for receiving print data which the host computer transmits to the printer on the basis of the print start event transmitted by the print start event transmitting unit, wherein the print control unit controls the printer engine to print the print data received by the receiving unit, and the host computer comprising: a display unit for receiving the image data transmitted by the print setting event transmitting unit in response to depression of the preview display button, and displaying the received image data on a display apparatus; an update unit for discriminating the print setting event transmitted to the host computer by the print setting event transmitting unit and updating the image data displayed on the display apparatus on the basis of the discriminated print setting event; and a control unit for discriminating the print start event transmitted by the print start event transmitting unit to the host computer, and for generating the print data from the image data transmitted to the host computer by the print setting event transmitting unit and transmitting the generated print data to the printer via the communication interface.