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7
Chapter 7 Print Control Codes
90
Bit Function 0 1
0
Reduced Character Printing in the
Clear Specify
Vertical Direction
1 Not used Fixed at 0
2 Not used Fixed at 0
3 Not defined —
4 Not used Fixed at 0
5 Not used Fixed at 0
6 Not used Fixed at 0
7 Not defined —
• This command is valid for printing of all characters except HRI characters.
• The reduction rate is 50%.
• Specification and clearing of printing reduced characters has no influence on the
line feed amount.
• If printing of reduced characters in the vertical direction is specified in the Stan-
dard mode, then reduced characters are printed in the paper feed direction. There-
fore, 90 degree right rotated characters are reduced in the characters' horizontal
direction.
• If printing of reduced characters in the vertical direction is specified in the Page
mode, then reduced characters are printed in the characters' vertical direction with-
out relation to the printing direction selected by ESC T.
• If characters of different vertical sizes are mixed on the same line, they are ar-
ranged along the printing base line.
• If reduction printing is specified, underlines are not added, even when underlines
are specified. However, the underline specifications are not cleared. Also, if an
underline is specified or cleared in the middle of a reduced printing specification,
the printer's internal flag operation only is executed.
• Characters with a high dot density may be difficult to read clearly.
• The initial value is “n = 0”.
(56) Specifying/Clearing reduced character printing (GS M n)
Code: [1D] h + [4D] h + n
* (0 ≤ n ≤ FF) Data are expressed in Hex code.
However, bits 1, 2, 4, 5, and 6 should be 0.
This command specifies or clears printing of reduced characters.