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Message: [QUOTE="oh-brother, post: 226577, member: 23075"] I am using a Brother QL-810w thermal printer, and trying to print a QR code using ESC/P commands, sending a hex fie directy to the printer. I am using a console utiity program named senddat.exe, which is actually Epson software. The labels are 1.1 x 3.5, which is DK-1201. I am using a Brother QL-810w thermal printer, and trying to print a QR code using ESC/P commands, sending a hex fie directy to the printer. I am using a console utiity program named senddat.exe, which is actually Epson software. The labels are 1.1 x 3.5, which is DK-1201. Printing from the Brother P-touch Editor 5.4 works. Printing text using ESC/P commands in a hex file sent directly to the printer works. Printing a QR code using ESC/P commands in a hex file sent directly to the printer does not work. The printer does not even make any noise indicating that it received any data. The Epson senddat.exe utility does not show any error messages. It does have error messages built in, and if there is a problem, those messages will display. I am using Frhed, a freeware hex editor, and since it creates a working hex file for text, I don't think that is the problem. I think there is something wrong with my ESC/P commands. Here is what I have in the data file: 1b696100 (put printer in ESC mode) 1b40 (init printer) 1b694c01 (landscape) 1b28430200ff02 (page length) 1b24ff00 (horiz pos) 1b285602007e00 (vert pos) 1b6b0b (font type) 1b58003200 (char size) 1b6951 (QR code) 03 (cell size) 02 (symbol type/model) 00000000 (params not used if no parts) 02 (err corr level) 00 (input method = auto) 313233343536373839 (data string in QR) 5c5c5c (end of data marker - \\\) 0c (print command) what is wrong ? [/QUOTE]

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