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Liquid ejecting device, printing apparatus and liquid supplying method

A liquid supply and liquid technology, applied in printing and other fields, can solve the problems of large-scale equipment and rising costs

Active Publication Date: 2009-06-17
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the ink supply device of the type in which the ink pump unit is compressed by the driving force of the reciprocating movement of the carriage described above has a structure including an ink holding unit which is a separate tank as a buffer, It holds the ink sent from the ink pump unit in advance, which leads to an increase in size and cost of the device

Method used

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  • Liquid ejecting device, printing apparatus and liquid supplying method
  • Liquid ejecting device, printing apparatus and liquid supplying method
  • Liquid ejecting device, printing apparatus and liquid supplying method

Examples

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Embodiment Construction

[0054] Hereinafter, examples of embodiments of the liquid ejection device and the printing device according to the present invention will be described with reference to the drawings.

[0055] First, the structure of an inkjet printer as a printing device according to this embodiment will be described.

[0056] like figure 1 As shown, an inkjet printer 1 is a printer that performs color printing on roll paper using inks of various colors, and a roll paper cover 5 is provided in a freely openable and closable manner on the front of a printer case 2 covering the main body of the printer. And ink cartridge cover 7. Furthermore, a power switch 3 , a feed switch, an indicator, and the like are arranged on the front of the printer housing 2 .

[0057] When opening the roll paper cover 5, if figure 2 As shown, the paper storage unit 13 storing the roll paper 11 which is the medium to be printed is in an open state, and the roll paper 11 can be replaced.

[0058] In addition, when...

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PUM

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Abstract

A liquid ejecting device is provided. A main tank stores liquid. A sub-tank includes a variable volume liquid chamber that stores the liquid supplied from the main tank. A head ejects the liquid supplied from the sub-tank. A carriage is movable to reciprocate the sub-tank and the head. A first engagement member is provided in the sub-tank and is movable to expand the volume of the liquid chamber. A second engagement member engages with the first engagement member and moves the first engagement member. The liquid is supplied from the main tank to the sub-tank when the first engagement member is moved by the second engagement member to expand the volume of the liquid chamber.

Description

technical field [0001] The present invention relates to a liquid discharge device, a printing device, and a liquid supply method for supplying liquid from a main-tank to a head through a sub-tank. Background technique [0002] An example of the above-mentioned liquid ejection device includes a device incorporated in a printer connected to a personal computer or the like to supply ink as a liquid to a print head. [0003] In such a liquid ejection device, a known liquid ejection device includes: being mounted on a carriage, receiving ink replenishment from an ink cartridge to a storage chamber through an ink supply tube; A sub-tank unit that supplies ink to the recording head; a pump mechanism that replenishes the ink in the ink cartridge to the sub-tank unit; a pump control mechanism that controls the flow of ink in response to a drive signal supplied to the recording head (for example, refer to Patent Document 1). [0004] However, the above-mentioned pump mechanism has a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/175
CPCB41J2/17596B41J2/175
Inventor 井上健
Owner SEIKO EPSON CORP