JP2015013385A5 - - Google Patents

Claims (7)

Sub-printing consisting of a nozzle that ejects ink into particles, a charging electrode that charges ink particles by applying a charging voltage, a deflection electrode that deflects charged ink particles, and a gutter that collects ink particles that are not used for printing In an inkjet recording apparatus having a plurality of heads,
A detection unit for detecting whether or not the sub print head is abnormal;
A control unit for controlling printing by independently controlling the plurality of sub print heads;
The control unit, when one of the sub print head detects an abnormality in the detection unit, switches the print control so as to print the print contents said abnormal sub print head to be printed by the other normal sub printhead An ink jet recording apparatus. The inkjet recording apparatus according to claim 1,
A storage unit for storing control parameters for each nozzle;
The storage unit stores control parameters for printing one print result with a plurality of sub print heads and for printing one print result with a sub print head other than the sub print head in which an abnormality has occurred. And
The ink jet recording apparatus, wherein the control unit performs print control using any of the control parameters according to a state of a nozzle. The inkjet recording apparatus according to any one of claims 1 and 2,
An input unit capable of inputting the setting of whether to repair control for printing the print contents to be printed said abnormal sub printhead in other normal sub print head, the input is set to perform the repair control case, when one of the sub print head detects an abnormality in the detection portion, said stop using abnormal sub print head, an ink jet recording apparatus characterized by switching to the redundant control. The inkjet recording apparatus according to any one of claims 1 to 3,
A recording unit that stores the state when said abnormal sub printhead switches the print contents to be printed on the print control for printing in other normal sub print head, and an output unit for outputting the state from the apparatus An ink jet recording apparatus comprising: The inkjet recording apparatus according to any one of claims 1 to 4,
The plurality of sub print heads are arranged vertically,
When said other normal sub print head is disposed on the upper side of said abnormal sub printhead, to print the print contents to be printed said abnormal sub printhead in other normal sub printhead before switching the print control to the ink jet recording apparatus characterized by moving the position of the normal sub print head in the vertical direction. Sub-printing consisting of a nozzle that ejects ink into particles, a charging electrode that charges ink particles by applying a charging voltage, a deflection electrode that deflects charged ink particles, and a gutter that collects ink particles that are not used for printing In an inkjet recording apparatus having a plurality of heads,
A detection unit for detecting whether or not the sub print head is abnormal;
A control unit for controlling printing by independently controlling the plurality of sub print heads;
The control unit, when one of the sub print head by the detection unit detects the abnormality, the use of unusual sub printhead stops, normal print contents said abnormal sub print head to be printed in the other The print control is switched so as to perform the relief control for printing with a sub print head, and the ink particle usage rate, which is a predetermined ratio of thinning out the ink particles used for printing out of the ink particles emitted from the nozzles, is corrected. An ink jet recording apparatus. The inkjet recording apparatus according to any one of claims 1 to 6,
The detection unit is a sensor that monitors a state of the sub print head, and detects an abnormality by monitoring a state of a nozzle, a charging electrode, and a deflection electrode in the sub print head. .