Recovery unit and ink jet recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorYasuo Miyauchi
Life of this patent
Estimating the term…
Abstract
A recoverying unit for maintenance and recovery of ink ejection performance of an ink ejecting device includes an elastic tube; a guide member for supporting the tube; a roller for pressing the tube; and a roller holding member, wherein the roller holding member is provided with a guide groove which connects a first position in which the roller presses the tube for substantially hermetically closing the tube, a second position in which the roller presses the tube with a greater pressing degree, and a third position in which the tube is opened, the guide groove is effective to guide movement of the roller between the first position and the third position.
Claims8
A recovery unit for maintenance and recovery of ink ejection performance of ink ejecting means, comprising:
- an elastic tube;
- a guide member for supporting said tube;
- a roller for pressing said tube;
- a roller holder for holding said roller;
- a rotatable member for swingably holding the roller holder;
- a spring for urging said roller holder;
- and
- a guide groove, provided in said roller holder, for guiding movement of said roller, said guide groove connecting a first position in which said roller presses said tube to substantially hermetically close said tube and a third position in which said tube is opened, and there is provided a second position in which said roller presses said tube with a greater pressing degree between said first position and said third position.
An ink jet recording apparatus including a recovery unit for maintenance and recovery of ink ejection performance of ink ejecting means, comprising:
- said recovery unit including an elastic tube;
- a guide member for supporting said tube;
- a roller for pressing said tube;
- a roller holder for holding said roller;
- a rotatable member for swingably holding the roller holder;
- a spring for urging said roller holder;
- and
- a guide groove, provided in said roller holder, for guiding movement of said roller, said guide groove connecting a first position in which said roller presses said tube to substantially hermetically close said tube and a third position in which said tube is opened, and there is provided a second position in which said roller presses said tube with a greater pressing degree between said first position and said third position.
Dependencies are inferred from the claim text.