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You can not encode the function code such as Enter or Tab on the card. (Please download the manual for the character set that can be encoded on each track). However, you can re-configure the magnetic card reader to insert the Enter or Tab as needed to meet the application software's expectation.

11. I am developing my own application

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.  I am able to send the command to turn on the LED lights, etc. However,

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I kept getting an error response when sending the sample write command code from the appendix section of the manual?

Please try sending the Set BPC command first, then the write command.

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