IBM Proprinter Emulation
For example, an 11 inch form contains 66 lines at 6 LPI, but 88 lines at 8 LPI. If line spacing is changed after setting the form length, the physical form length (in inches) will not be changed.
Resets top of form to the current position, so it is wise to be at top of form before setting form length. Issuing a form feed will guarantee this. Vertical margins are cleared.
Example: The following escape sequence will set form length to 66 lines. At 6 LPI, this will result in a form length of 11 inches.
Escape sequence: | ESC | C | 66 |
Hexadecimal: | 1B | 43 | 42 |
Set Form Length in Inches |
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| ESC C NUL n |
Sets the form length to n inches. 1 ≥n≥37. Maximum form length is 37.9 inches. Invalid form lengths will be ignored. Overrides the “Form Length” value in the forms menu.
Resets top of form to the current position, so it is wise to be at top of form before setting form length. Issuing a form feed will guarantee this. Vertical margins are cleared.
Example: The following escape sequence will set form length to 11 inches, regardless of what line spacing is set.
Escape sequence: | ESC | C | NUL | 11 |
Hexadecimal: | 1B | 43 | 00 | 0B |
Form Feed |
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| FF |
Causes the current line to be printed, and then advances the paper to the top of the next form. If a top margin is set, printing will continue at the top margin. Setting “Host FF at TOF” to “No” in the interface setup menu allows a form feed to be ignored if the paper is already at top of form. If “Auto CR” is set to “On” in the interface setup menu, a carriage return will also be performed.
Control code: | FF |
Hexadecimal: | 0C |
Set Top of Form | ESC 4 |
Sets top of form to the current position.
Escape Sequence: | ESC | 4 |
Hexadecimal: | 1B | 34 |
Horizontal Tabs
Default horizontal tab stops are set at every eighth column, i.e. column 9, 17, 25, 33, 41, etc. The default tab stops are associated with columns, not absolute physical positions. Changing character spacing will change the physical position of the default tab stops.
User defined horizontal tab stops are associated with absolute physical positions, not with columns. The tab stops are set relative to the current character spacing, but subsequent changes in character spacing will not affect the physical position of the tab stops (except that the position will be rounded up to the closest character boundary).
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