INKJET RECORDING DEVICE, AND INKJET RECORDING DEVICE ABNORMALITY DIAGNOSIS METHOD

WIPO Patent Application WO/2024/075194

A1

The present invention provides an inkjet recording device and an inkjet recording method that are capable of not only quickly detecting at least leakage of ink to the outside but also detecting whether ink control mechanism parts related to ink circulation are operating normally.　A control unit 20 executes a printing mode for executing printing on a printing target and a standby mode for avoiding printing on the printing target. The standby mode includes an ink circulation processing sequence for driving ink control mechanism parts 117, 207 to supply ink from an ink container 201 to an ink path for recollection, and a standby processing sequence for avoiding driving the ink control mechanism parts. The control unit is characterized by: determining that there is an abnormal state, where the ink control mechanism parts are not operating normally, if no increase is detected in the liquid level by a liquid level sensor 204 in the ink circulation processing sequence; determining that there is an abnormal state, where ink leakage has occurred in the ink path, if a decrease is detected in the liquid level by the liquid level sensor in the standby processing sequence; and issuing an alarm to a notification means 105 if the control unit determines that there is an abnormal state.

JP2021191612	INK JET RECORDING DEVICE
JP2011042051	IMAGE PROCESSOR AND IMAGE FORMING APPARATUS
JP2003334966	INK STORAGE CONTAINER

MAEDA AKIRA (JP)
OKAMOTO YUSUKE (JP)
MORIAI TAKUYA (JP)

PCT/JP2022/037213

April 11, 2024

October 05, 2022

Click for automatic bibliography generation  

HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)

B41J2/175; B41J2/18

JP2015189229A	2015-11-02
JP2012091527A	2012-05-17
JP2007090558A	2007-04-12
US20170246876A1	2017-08-31

POLAIRE I.P.C. (JP)

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