This command (ESC K n CR) must be sent prior to any printable characters on the line in order to take effect. Example 1: The following escape sequence set the pitch to 12 CPI (Courier Font):
Escape Sequence:  | ESC | K  | 1  | CR  | 
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Hexadecimal:  | 1B  | 4B  | 31  | 0D  | 
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Decimal:  | 27  | 75  | 49  | 13  | 
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Example 2: The following escape sequence set the pitch to 25 CPI Verin Font:  | |||||
Escape Sequence:  | ESC | K  | 1  | 1  | CR  | 
Hexadecimal:  | 1B  | 4B  | 31  | 31  | 0D  | 
Decimal:  | 27  | 75  | 49  | 49  | 13  | 
Select Character Pitch: Mode 2 | ESC k n | 
This command is used for backward compatibility when Legacy or Factory fonts are selected. The command sets the font size based on the number of character per inch. The parameter n can have the following values:
n  | Character Pitch/Font  | Character size  | 
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  | APEX 2 | APEX 3  | APEX4 | 
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0  | ~13 cpi Rotated / Courier mode 0  | 16 x 14  | 24 (rows/line)  | 36 (rows/line)  | 52 (rows/line)  | 
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1  | ~12 cpi Normal / Courier mode 1  | 16 x 23  | 24  | 36  | 52  | 
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2  | ~16 cpi Normal / Courier mode 2  | 12 x 23  | 32  | 48  | 69  | 
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3  | ~19 cpi Normal / Courier mode 3  | 10 x 23  | 38  | 57  | 83  | 
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4  | ~21 cpi Normal / Courier mode 4  | 09 x 23  | 42  | 64  | 92  | 
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5  | ~24 cpi Normal / Courier mode 5  | 08 x 23  | 48  | 72  | 104  | 
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6  | ~10 cpi Normal / Monospace 821BT  | 20 x 23  | 19  | 28  | 40  | 
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7  | ~20 cpi Normal / Monospace 821BT  | 10 x 23  | 38  | 57  | 80  | 
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8  | ~20 cpi Bold / Monospace 821BT  | 10 x 23  | 38  | 57  | 80  | 
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9  | ~20 cpi Short / Monospace 821BT  | 10 x 18  | 38  | 57  | 80  | 
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This command (ESC k n) must be sent prior to any printable characters on the line in order to take effect. Example: The following escape sequence set the pitch to 12 CPI (Courier font):
Escape Sequence:  | ESC | k  | 1  | 
Hexadecimal:  | 1B  | 6B  | 31  | 
Decimal:  | 27  | 107  | 49  | 
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