| 摘要 |
PURPOSE:To rapidly and simply optimize a printing state, by providing an exclusive controller for controlling the emission of liquid jet recording unit and performing preparatory emission processing at the start time of a printer by using said controller. CONSTITUTION:At the starting of printing, a liquid jet recording unit HU is subjected to preheating treatment and preparatory emission processing to improve an ink emitting state. When the preheating of the head is started, the temp. of said head HU is a definite temp. or more in the high temp. side thereof, preheating is finished. After preheating, the temp. in the recording unit HU is averaged and preparatory emission processing is performed. An emission condition is set to a head unit controller 10 and the printing output of all dots is set to '1'. Printing output is applied to the recording unit HU to perform emission and this operation is repeated prescribed times and the recording head unit HU is transferred to a stand-by state. |
