recording apparatus and inkjet printing control method

A recording apparatus inkjet comprising: an ink tank for containing ink for printing a print object (118); a nozzle (112) connected to the ink and ejects the ink; a charging electrode (113) to charge the ink ejected from the nozzle (112) and used for printing; one deflection electrode (114) for deflecting the charged ink by the charging electrode (113); a channel (115) to collect ink not used for printing; a control circuit of the writing start timing (106) for generating a first clock signal line; a control circuit for printing width (121) for generating a second clock signal line; and a control part (107), wherein the control part is arranged to control a starting position of writing for the print object (118) based on the first clock signal line, and when the object printing (118) reaches a start time of printing, the control part (107) is arranged to perform a control width of a string of print content based on the second clock signal line and leads out print control; characterized in that the recording apparatus inkjet further comprising: a detection part (108) for detecting a moment of passage of the print object by a reference position and a measurement circuit movement speed (109) to calculating a moving speed of the print object (118), wherein the measurement circuit speed of movement (109) is arranged to calculate a moving speed of the print object (118) at a first point and a speed of movement at a second point based on the detection information obtained by the detection part (108) and a medium speed movement is calculated from the first and second speeds of movement, the control circuit start timing writing (106) is arranged to generate the first clock signal line based on a ratio between the average speed of movement and a maximum speed of movement print object (118) based on the set information, the measurement circuit speed of movement (109) is arranged to calculate an acceleration of the print object (118) based on the moving speed of the print object (118 ) at the first point, the movement speed at the second point, and a time required for the print object (118) pass between the first and second points, and to calculate a moving speed at the time of start printing based on the acceleration, and the control circuit printing width (121) is arranged to generate the second clock signal line based on a ratio between the movement speed at the time of print start and maximum speed of movement of the print object based on the set information.