SATO CT400 Operator And Technical Reference Manual page 60

Section 4. Programming Reference
Page 4-16
1. This command must be immediately followed by the <ESC>BW Bar
Code Expansion command.
2. You may use only one variable ratio bar code per label.
3. If the data specified in this command is incorrect, the command is
ignored and the ratio used will be based on the previous setting.
4. See Appendix B for more specific instructions and details regarding
individual bar code symbols.
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