| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink follower fluid which keeps the quality as an ink follower without causing separation or oil separation due to migration of part of the ink follower fluid into ink under a high temperature or in a long-time storage. <P>SOLUTION: The ink follower fluid is provided in the upper part of the ink filled directly in an ink holding part. The intersecting point of the storage elastic modulus and loss elastic modulus of the ink follower fluid in angular frequencies of 0.0001-100.0 rad/s is an angular frequency of 0.5 rad/s or below. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
