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5-20 Page Control Commands EN
Horizontal Motion Index (HMI) Command
The Horizontal Motion Index (HMI) command designates the width of
the columns.
? & k # H
# = Number of 1/120 inch increments.
Default = Determined by the pitch value in the default font header.
Range = 0 - 32767 (valid to four decimal places)
The value field is valid to 4 decimal places. A value of zero (0)
indicates no horizontal motion.
When fixed pitch fonts are selected, all printable characters including
the Space and Backspace characters are affected by HMI. When
proportional fonts are selected, the HMI affects only the Space control
code character.
HMI is reset to match the new font when any of the font
characteristics are changed and when switching between primary
and secondary fonts with Shift In and Shift Out.
HMI is equal to the pitch value in the font header. The factory default
font’s HMI is 12 (12/120 = 1/10 inch per character, or 10 characters
per inch).
Note When HMI is not specifically set using the HMI command, PCL cursor
moves are rounded to the nearest full increment determined by the
current unit of measure setting. For example, if the unit of measure is
set to 96 (one PCL Unit = 1/96 inch), then the HMI is rounded to the
nearest 1/96 inch. If the unit of measure is set to 300 (one PCL Unit =
1/300 inch), the HMI is rounded to the nearest 1/300 inch.