Recording apparatus having a substrate for a recording head and method of producing the same
AssigneeCanon Kabushiki Kaisha
InventorKimiyuki Hayasaki
Life of this patent
Estimating the term…
Abstract
A substrate for a recording head has a plurality of recording elements, a plurality of functional elements electrically connected to the recording elements, and a common electrode electrically connected to the recording elements and selectively feeding a driving signal to the recording elements on a base boad. Also, the common electrode is prepared as a layer by the same step as that of forming a conductor electrode layer to be electrically connected to a semiconductor layer constituting the functional elements arranged in the substrate. Therefore, the recording apparatus, can be prepared by the process including the step of forming the recording elements and simultaneously connecting these elements to reduce the number of film forming operations.
Claims22
A recording apparatus comprising:
- a recording head used for recording inputted information on a recording medium by ejecting a recording liquid from a plurality of orifices formed thereon;
- means connected to said recording head for supplying a drive signal for driving said recording head;
- and
- means for transferring said recording medium, wherein said recording head includes:
- a substrate in which a plurality of recording elements are selectively driven for heating said recording liquid;
- a plurality of functional elements arranged in a semiconductor layer for selectively feeding a driving signal to said recording elements so as to eject ink from a plurality of ejection ports formed on said recording head, each of said functional elements being electrically connected to one side of a corresponding one of said recording elements,
- a plurality of functional element electrodes arranged in a conductor electrode layer and connecting, respectively, said functional elements in said semiconductor layer;
- and
- a common electrode for feeding said driving signal to said recording elements and also arranged in said conductor electrode layer and electrically connected to another side of said recording elements;
- and
- said common electrode being in the same layer which is formed during the same step as that of forming said conductor electrode layer.
A color recording apparatus comprising:
- a recording head used for recording inputted color information on a recording medium by ejecting a recording liquid from a plurality of orifices formed thereon;
- means connected to said recording head for supplying a drive signal for driving said recording head;
- and
- means for transferring said recording medium, wherein said recording head includes:
- a substrate in which a plurality of recording elements are selectively driven for heating said recording liquid;
- a plurality of functional elements arranged in a semiconductor layer for selectively feeding a driving signal to said recording elements so as to eject ink from a plurality of ejection ports formed on said recording head, each of said functional elements being electrically connected to one side of a corresponding one of said recording elements,
- a plurality of functional element electrodes arranged in a conductor electrode layer and conducting, respectively, said functional elements in said semiconductor layer;
- and
- a common electrode also arranged in said conductor electrode layer and electrically connected to another side of said recording elements;
- and
- said common electrode being in the same layer which is formed during the same step as that of forming said conductor electrode layer.
A substrate for a recording head used for recording inputted information on a recording medium, comprising:
- a plurality of recording elements a plurality of functional elements arranged in a semiconductor layer for selectively feeding a driving signal to said recording elements, each of said functional elements being electrically connected to one side of a corresponding one of said recording elements,
- a plurality of functional element electrodes arranged in a conductor electrode layer and conducting, respectively, said functional elements in said semiconductor layer;
- and
- a common electrode also arranged in said conductor electrode layer, and electrically connected to another side of said recording elements;
- and
- said common electrode being in the same layer which is formed during the same step as that of forming said conductor electrode layer.
Dependencies are inferred from the claim text.