Toshiba B-EX4T1-G/T Operation Manual page 96

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Drive (Store in)
Note 1: "Cap height" is the height of characters above the baseline
Note 2: "Descender" is the height of characters below the base line.
= 0.1%, 0% = No correction)
Note: Be sure to set "0" for the bitmap/writable character
Specifies the storage location of the selected TEC font.
Note: Set a proper value according to the External Equipment Interface
Specification (TPCL command manual).
Description