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Support Group Application Note No. 002, Issue 1
4) Double Height Characters Off
VDU1, 27, 1, 37
5) Underlining
VDU1, 27, 1, 42, 1, 48 (normal underlining)
VDU1, 27, 1, 42, 1, 49 (double underlining)
VDU1, 27, 1, 42, 1, 50 (dotted underlining)
These commands turn on the appropriate style of underlining, which remains in operation until cancelled.
6) Underlining Off
VDU1, 27, 1, 43
7) Horizontal Character Spacing
VDU1, 27, 1, 60 (10 characters per inch)
VDU1, 27, 1, 61 (12 characters per inch)
VDU1, 27, 1, 62 (18 characters per inch)
These commands select the number of characters printed per inch horizontally. The default value on
power-up or general reset is 10 cpi.
8) Vertical Line Spacing
VDU1, 27, 1, 69 (6 lines per inch)
VDU1, 27, 1, 70 (8 lines per inch)
These commands set the number of line feeds per inch to the chosen value.
9) Variable Vertical Line Spacing
VDU1, 27, 1, 38, 1, n
Sets line spacing to a value between 1/12 inch and 9/12 inch, in increments of 1/12 inch. The value n is 48+
(the number of increments). For example, if the desired line spacing was 5/12 inch, then n would be (48+5)
= 53, and the complete command would be VDU1, 27, 1, 38, 1, 53.
10) General Reset
VDU1, 27, 1, 48
Clears the print buffer, the horizontal and vertical program settings, the pitch and line spacings, etc.
Support Group Application Note No. 002, Issue 1
This command turns off double height printing.
Turns underlining off.
16th June 1992
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