Hitachi Industrial Equipment Systems Co., Ltd.

Hiroko Kurihara

Takashi Kawano

Shinji Shibuya

Kosuke Matoba

Tadahiro Yamaguchi

Takashi Sato

Nobuhiro Harada

Tomohisa Kohiyama

Makiko Naemura

Kenjiro Fujii

Muneaki Watanabe

To obtain a printing inspection device that an optimum binarization threshold value in the printing inspection device that captures an image including a two-dimensional code printed by a general-purpose printer such as an ink jet printer, as a multi-level image, creates a binary image from the multi-level image with a predetermined binarization threshold value, and then performs decoding. Before a practical printing inspection is performed, a read test is performed. The read test is performed on one or more inspection samples by binarizing a multi-level image with brightness values for all gradations as a threshold value. A range (maximum value and minimum value) of readable brightness values is obtained, and then a median value between the minimum value and the maximum value is used as a binarization threshold value for a two-dimensional code image in a practical printing inspection.

Printing inspection device

Previously, a customer may not have known which information was acquired and may have felt anxiety. In addition, only internal data of the apparatus was previously acquired. However, in order to determine a trouble in the inkjet printer with high precision, visual information such as a state of a printer mechanism or a conveyance line and a print result is also necessary to determine the apparatus state. Therefore, it is necessary to establish a maintenance system capable of acquiring such information. Disclosed is a support service system for an inkjet printing apparatus, including: a first network terminal that can communicate information regarding a state of a first inkjet printing apparatus through communication from a first external communication device installed in the first inkjet printing apparatus; and a second network terminal that performs determination on the basis of the information regarding the state obtained through communication of the first network terminal and transmits a result of the determination to the first network terminal, wherein the first network terminal transmits a maintenance request for the first inkjet printing apparatus to the second network terminal, and the second network terminal transmits whether or not responding to the maintenance request to the first network terminal.

Support service system for inkjet printing apparatus and control method therefor

The purpose of the present invention is to provide an ink jet recording apparatus that improves printing quality when printing with a plurality of nozzles. The ink jet recording apparatus performs printing control of a plurality of nozzles using an encoder pulse output from an encoder attached to a conveying line, and is characterized by comprising: an input unit with which a printing character width is separately set for each of the plurality of nozzles; and a control unit that controls printing using a character width corresponding to input information from the input unit.

Ink jet recording apparatus

The purpose of the present invention is to suppress variance in the print quality of an inkjet recording device. In order to solve the above problem, the present invention is an inkjet recording device of a charge control type equipped with two or more nozzles which are disposed side by side in a print head, the inkjet recording device being characterized by the following: having a control unit for performing print control independently for each of a plurality of printing configurations; the control unit having an input unit whereby current values of print elements of each of the printing configurations can be periodically checked, and having an output unit whereby the print elements during a subsequent print can be modified; and in that the control unit further adjusts each of the nozzles for every print so as to cause the 'charging voltage', 'deflecting voltage', and &#x201c;ink pressure&#x201d; of the subsequent print to approach a reference value.

Inkjet recording device

Display screen or portion thereof with a graphical user interface for an ink jet printer

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Tokyo, Japan

Hiroko Kurihara