SATO CL408 Operator And Technical Reference Manual page 91

Section 4. Programming Reference
Special Notes
Page 4-24
This command will expand the following fonts:
1. Fonts U, S, M, XU, XS, XM, OA & OB (see Page 4-34) and fonts
WB, WL, XB and XL (see Page 4-38).
2. This command will also affect the following commands:
Character Pitch (see Page 4-26)
Characters, Custom-Designed (see Page 4-21)
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.
9001035 Rev. E SATO CL Series Printers