| 摘要 |
<P>PROBLEM TO BE SOLVED: To carry out printing in which the amount of a coating agent applied on a printed board is appropriate by making the cleaning of the coating agent adhered to a screen plate be carried out at an appropriate timing by a cleaning device. <P>SOLUTION: When a cleaning counter 47 calculates that the fifth printed board P is printed, a control part 33 decides that it is just before cleaning, and the volume of a cream solder applied on the fifth printed board P is measured. In other words, on the basis of the recognition processing result of a recognition processing device 57, the control part 33 operates volume ratios concerning each applied cream solder, calculates the average of the operated volume ratios to obtain an average cream solder volume ratio, stores it in a built-in memory unit, and sends it to the control part 33 of a screen printing machine 30 via communication parts 49, 48. When the average cream solder volume ratio is above 120%, the control part 33 carries out control to increase the frequency of cleaning. <P>COPYRIGHT: (C)2010,JPO&INPIT |
