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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"how to use DirectIO","articleBody":"Hello,\r\nI would like to align the paper to the black mark (notch alignment). I think that I should have to use the **directIO method** to send a direct command to a Custom Kube II printer but I don't know how to use.\r\n\r\nIn the printer's manual I read that the command XON XOFF is 0x1D 0xF8 and in decimal format is 29 248.\r\n\r\nI've tried  `printer.directIO(29, new int[]{248}, null);` where printer is a POSPrinter object.\r\nBut it gives me an exception:\r\njpos.JposException: Wrong Paramethers (DirectIO Command Not Supported)\r\n\r\nCan you help me, please?\r\nThank you.\r\n","author":{"url":"https://github.com/mbend","@type":"Person","name":"mbend"},"datePublished":"2017-09-01T16:52:24.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/1/JavaPOS/issues/1"}