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US 4,520,373 AGranted
Droplet generating method and apparatus therefor
AssigneeCanon Kabushiki Kaisha
InventorsNaoki Ayata, Yoshiaki Shirato, Yasushi Takatori, Mitsuaki Seki
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Abstract
This invention discloses a recording apparatus having at least transistors, gates and a latch circuit for driving plural heating elements, and also discloses a recording head in which a conductive member is connected electrically to heating elements.
Claims23
A recording apparatus utilizing heating elements for thermal recording on a recording sheet, comprising:
- a plurality of heating elements arranged with such a high density as to enable recording with a resolving power of at least 8 dots/mm;
- a plurality of transistors divided into groups each containing at least 32 transistors for driving said heating elements;
- at least 32 gates for driving said transistors;
- a latch circuit of at least 32 bits;
- a serial-in-parallel-out shift register of at least 32 bits for loading pixel signals into said latch circuit;
- and
- input means for entering pixel signals into said shift register.
4 more elements
A recording apparatus, comprising:
- a common conductor;
- a plurality of recording elements arranged to record with a resolving power of at least 8 dots/mm, each of said plurality of recording elements having one edge connected to said plurality of recording elements and including a plurality of control elements for controlling the drive of said common conductor;
- and
- a base having a plurality of groups of chips arranged thereon such that in a direction parallel to that in which said common conductor extends the Nth chip and (N+1)th chip fail to be adjacent to each other.
1 more element
A recording apparatus, comprising:
- a plurality of recording elements;
- a plurality of transistors divided into groups each containing at least 32 transistors for driving said plurality of recording elements;
- at least 32 gates for driving said plurality of transistors;
- a latch circuit of at least 32 bits;
- a serial-in-parallel-out shift register of at least 32 bits for loading pixel signals into said latch circuit;
- and
- input means for entering pixel signals into said shift register.
4 more elements
An apparatus, comprising:
- a base;
- a plurality of droplet generating means provided on said base;
- a common conductor disposed on said base and connected to one end of each of said droplet generating means;
- first drive signal generating means for driving selectively said plurality of droplet generating means;
- second drive signal generating means for driving said plurality of droplet generating means;
- and logic means having a plurality of portions to correspond to said plurality of droplet generating means, each portion having two input terminals for receiving drive signals from said first and second drive signal generating means, respectively, and having one output terminal coupled to the other end of an associated one of said droplet generating means.
3 more elements
A recording apparatus for forming visual indicia on a recording member, comprising:
- a plurality of electrically operable recording element means for causing deposit of a recording liquid on a recording member;
- and
- control means including a plurality of groups of control units each being arranged to control the operation of a respective recording element means, and means for applying to each said control unit group selection signals and unit selection signals,
- wherein all the control units of each group are adapted to receive the group selection signal to select that group and are adapted to receive the unit selection signal to select that control unit, each control unit operates the respective recording element means in response to both the group and unit selection signals.
1 more element
A recording apparatus for forming visual indicia on a recording member, comprising:
- a base;
- a plurality of electrically operable recording element means arranged on said base;
- a common conductor disposed on said base and commonly coupling one end of said plurality of recording element means;
- a plurality of logic means each having an output coupled to a respective one of the other ends of said recording element means, and having first and second input terminals;
- first storage means coupled to the first terminals of each of said logic means, respectively, for storing recording information to drive said recording element means selectively;
- second storage means for supplying recording information to said first storage means;
- selection information generating means coupled to the second input terminals of said logic means, for generating selection information to select said logic means;
- and
- control means for performing a transfer control of the recording information between said first and second storage means, and for performing an output control of said selection information generating means.
6 more elements
Dependencies are inferred from the claim text.