18490658. LIQUID DISCHARGE APPARATUS AND CONTROL METHOD THEREOF simplified abstract (CANON KABUSHIKI KAISHA)

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LIQUID DISCHARGE APPARATUS AND CONTROL METHOD THEREOF

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Kei Kosaka of Tokyo (JP)

Tetsuya Narazaki of Tokyo (JP)

LIQUID DISCHARGE APPARATUS AND CONTROL METHOD THEREOF - A simplified explanation of the abstract

This abstract first appeared for US patent application 18490658 titled 'LIQUID DISCHARGE APPARATUS AND CONTROL METHOD THEREOF

Simplified Explanation

The patent application describes a liquid discharge apparatus that includes a print head with a nozzle for discharging liquid. It also includes a recovery unit with a cap that caps the nozzle and a pump that suctions liquid from the nozzle through the cap and discharges it to a waste liquid tank. A control unit determines whether to execute a first recovery operation or a second recovery operation based on the amount of waste liquid discharged to the waste liquid tank.

  • The print head has a nozzle for discharging liquid.
  • The recovery unit has a cap that caps the nozzle.
  • The recovery unit also has a pump that suctions liquid from the nozzle through the cap.
  • The pump then discharges the liquid to a waste liquid tank.
  • The control unit determines whether to execute a first recovery operation or a second recovery operation.
  • The decision is based on the amount of waste liquid discharged to the waste liquid tank.

Potential applications of this technology:

  • Printing industry: This liquid discharge apparatus can be used in printers for various applications such as document printing, label printing, and packaging printing.
  • Industrial manufacturing: The apparatus can be used in manufacturing processes that require precise liquid dispensing, such as in the production of electronic components or pharmaceuticals.

Problems solved by this technology:

  • Prevents clogging: The recovery unit helps prevent clogging of the print head nozzle by suctioning any excess or waste liquid.
  • Improves print quality: By maintaining the cleanliness of the print head nozzle, the apparatus ensures consistent and high-quality liquid discharge, resulting in better print outputs.
  • Reduces maintenance frequency: The recovery unit reduces the frequency of manual cleaning or maintenance required for the print head, saving time and effort.

Benefits of this technology:

  • Cost-effective: The apparatus helps reduce material waste by recovering and reusing liquid that would otherwise be wasted.
  • Extended print head lifespan: By preventing clogging and maintaining the print head's cleanliness, the apparatus extends the lifespan of the print head, reducing the need for frequent replacements.
  • Improved productivity: The automated recovery operation reduces downtime caused by print head issues, allowing for continuous printing operations and increased productivity.


Original Abstract Submitted

There is provided a liquid discharge apparatus. A print head includes a nozzle that discharges a liquid. A recovery unit includes a cap that caps the nozzle and a pump that suctions a liquid from the nozzle via the cap, and discharges to a waste liquid tank that accommodates a waste liquid of suctioned liquid. A control unit causes the recovery unit to execute at least one of a first recovery operation, in which the suction pump is driven at a first driving amount, or a second recovery operation, in which the pump is driven at a second driving amount smaller than the first driving amount, based on an amount of waste liquid discharged to the waste liquid tank.

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