Stop treatment method for ink-jet recording apparatus

Abstract

The invention provides a stop treatment method for an ink-jet recording apparatus, and aims to carry out stop treatment for the ink-jet recording apparatus through a small amount of solvent. During the process from printing state of injecting ink by a nozzle (20) to state of stopping supplying ink to the nozzle (20), solvent is supplied to the nozzle (20) from a solvent supply flow path (45), the solvent flowed through the nozzle (20) is supplied to a recovery flow path (29) to clean the recovery flow path (29), then solvent is supplied to an attraction flow path (56) from the solvent supply flow path (45) to clean the attraction flow path (56), outer gas is supplied to the attraction flow path (56) from the nozzle (20), and after the solvent is changed to air, the solvent is supplied to the attraction flow path (56) again to fine clean. By carrying out residual liquid removing for the attraction flow path (56) and residual liquid removing for the recovery flow path (29) alternatively and repeatedly, liquid in the recovery flow path (29) and the attraction flow path (56) are supplied to an ink container.

Description

technical field [0001] The present invention relates to a stop processing method of an inkjet recording device for cleaning ink remaining in a flow path when the operation of the inkjet recording device is stopped. Background technique [0002] As an inkjet recording device that uses the product conveyed by the conveying device of the production line as the object to be printed, that is, to print text or graphics on it, the object to be printed does not contact the nozzle of the printing head, and the ink (ink) flows from the nozzle A non-contact device that flies out towards the printed object. For example, in the case of printing characters on the surface of packaging materials such as corrugated cardboard boxes for packaging goods, the outer surface of the packaging material is printed by an inkjet recording device while being conveyed by a conveyor belt, or on a container containing a beverage. In the case of upper printing, printing is also performed on the outer surfa...

AI Technical Summary

Problems solved by technology

However, if the suction flow path and the recovery flow path are sucked at the same time during the stop process, the flow rate of the liquid flowing through each flow path will decrease compared with the case of suction by independent pumps, and the suction efficiency will decrease.

If a solenoid valve is installed in each flow path, and by switching the solenoid valve, only one flow path is sucked with one pump, and the other flow path is sucked separately after suction, then although the required suction can be performed, but because only Suction can be performed in one flow path, and as a result, there is a problem that the stop processing time becomes longer

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