| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink jet recording apparatus in which usability of an apparatus is improved by improving accuracy for determining whether multiple ink tanks with the same color ink are mounted.SOLUTION: There is a case where, in the individual tank number checking processing (S305), usually it is determined that individual tank number agreement can not be confirmed due to a collision of response signals from two tanks. However, due to individual differences such as a body side control circuit threshold values, there may be a case that an agreement is confirmed as an individual tank number of one tank. In response to this, the one tank that has the individual tank number whose agreement could be confirmed is put in a sleep state (S309), and because a control code is sent, the other tank designated with color ID is able to return its individual tank number, and the body side control circuit detects the individual tank number. Based on this, since the determination is made that there is a response from the tank (S311), it is possible to determine that multiple ink tanks with the same color ID are mounted. |
