| 摘要 |
PURPOSE:To disperse load torque at the time of pressing so as to make a driving motor small in size, light in weight, and reduce the cost thereof, by changing at every tube a timing at a time that a pressure roller presses or releases each tube. CONSTITUTION:A tube pump 4 is provided as a recovering tube pump for sucking or pressurizing by deforming four tubes 3 communicating with an outlet 52 of each record head 1 with a pressure roller 7. A timing at a time that the pressure roller 7 presses each tube 3 or a timing at a time that the pressure roller 7 is released from the state pressing each tube 3 is varied at every tube 3. When a fill-in occurs at the outlet 52 of the record head 1, a sucking recovery operation of each record head 1 is performed at a non-recording position. |
