Patent ID: 11872825
Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. A cooling control method to be used with a head cooling device, the device including:
a refrigerant supplying portion supplying a refrigerant to each of a plurality of recording heads through a corresponding supplying path, the plurality of recording heads each ejecting ink; and
a switching portion switching a corresponding supplying path of at least one of the plurality of recording heads,
wherein the refrigerant supplying portion collects the refrigerant from each of the plurality of recording heads through a corresponding collecting path, and
wherein the switching portion is able to switch a corresponding supplying path and another switching portion is able to switch a corresponding collecting path of each of the recording heads,
the method comprising:
controlling the switching portion to switch the corresponding supplying path so that the temperature difference among the plurality of recording heads decreases; and
controlling the another switching portion of a recording head to switch the collecting path to be shorter when a corresponding supplying path is switched to be longer.