US 7,600,851 B2
Printing head and ink jet printing apparatus
Toru Kanda, Kanagawa (Japan)
Assigned to Canon Kabushiki Kaisha, Tokyo (Japan)
Filed on Jun. 30, 2006, as Appl. No. 11/477,349.
Claims priority of application No. 2005-200148 (JP), filed on Jul. 08, 2005.
Prior Publication US 2007/0008378 A1, Jan. 11, 2007
Int. Cl. B41J 2/15 (2006.01)
U.S. Cl. 347—20  [347/26; 347/71; 347/84] 6 Claims
OG exemplary drawing
 
1. A printing head formed by adhering a printing element substrate, provided with an energy generating element for generating energy used for ejecting ink, to a supporting member, where a linear expansion ratio of the supporting member is greater than that of the printing element substrate, said printing head comprising:
a rib for dividing an ink supply path formed inside the supporting member for supplying ink from outside of the supporting member, said rib being provided at a part of a portion where the supporting member is adhered to the printing element substrate and being continuously formed along a portion from one end to the other end of the ink supply path,
wherein the printing element substrate is adhered to the supporting member in a state where an upper surface of said rib inclines in a direction toward an outside of the printing element substrate, and said rib is deformable according to a temperature change of the supporting member.