Patent ID: 7125092

Claim:
A print system comprising: a print head that ejects ink; an upstream transfer device that is provided in a feed path extending from a feed position to a counter area facing the print head, and transfers a recording medium along the feed path; a downstream transfer device that is provided in a discharge path extending from the counter area to a discharge position, and transfers the recording medium along the discharge path; a print instruction device that provides instructions for the upstream or downstream transfer device to transfer the recording medium and for the print head to eject ink in turn based on print data representing a predetermined image shown in an ejection pattern of ink to print the image upon the recording medium; an ink amount measurement device that measures the amount of ink ejected from the print head and stores the amount as a measurement value; and an ink amount determination device that determines whether the measurement value stored in the ink amount measurement device exceeds a preset value when the recording medium is transferred by the upstream transfer device and a front end of the recording medium is moved to a first position, wherein the downstream transfer device is comprised of a drive roller and a driven roller so that the recording medium can be passed through between the drive roller and the driven roller, and the print instruction device discontinues the instructions based on the print data if it is determined by the ink amount determination device that the measurement value exceeds the preset value, and instructs the upstream transfer device to transfer the recording medium from the first position to the downstream transfer device, and when the front end of the recording medium is transferred to the downstream transfer device to be held between the drive roller and the driven roller, further instructs the upstream transfer device to transfer the recording medium to a second position located at least downstream of the first position, the second position being the position where the printing should be performed next to the printing at the first position, so that the instructions based on the print data are continued when the front end of the recording medium has reached to the second position.