SATO CT410 - Manual (Page 66)

Special Notes This command will expand the following fonts:
1. Fonts U, S, M, XU, XS, XM, OA & OB and fonts WB, WL, XB and
XL.
2. This command will also affect the following commands:
Character Pitch
Characters, Custom-Designed
3. The Character Expansion value is in effect for the current print job
until a new expansion command is specified.
4. The Line and Box command, if used within the data stream, may
return all subsequent text to the default expansion of 1 x 1.
Therefore, either send the Character Expansion command before
all printed data, or send Line and Box commands last, preceding
the <ESC>Q Quantity command.
Section 4. Programming Reference
Page 4-22 9001069 A SATO CT Series Printers