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- IBM Proprinter; Printer name (up to 14 characters)
- 27,65,8,27,50; Line spacing, begin & initalization commands
- 27,76,128,2; Graphics mode command for 120 DPI (double density)
- 13; Carriage Return command
- 10; Linefeed command
- ; Left margin indent
- ; Pin flag
- 816; Midi I/O Card Address (816=330H, 824=338H)
- 2; Midi I/O Card IRQ number
-
- DOT-MATRIX PRINTER CONFIGURATION INFORMATION
-
- This text file provides user-customization of many additional printers
- not directly supported by L.M.P All dot-matrix printing is intended for
- rough draft purposes. 24-pin printers are supported at the same resolution
- as 9-pin printers. If your printer supports an Epson FX mode, we recommend
- using it. If not, the 24-pin mode may work for you.
-
- o Only the first 9 lines of this file are significant.
- Anthing placed below the 9th line will be ignored.
- You may delete all but the first 9 lines to save space.
- o Values must be decimal, separated by commas without spaces and
- must end with a semicolon to allow comments on the same line.
- o The order is VERY important.
- o Line spacing for 9 pin printers is 8/72". The line spacing command
- may be combined with any other initialization commands on line two.
- 24 pin printers use 24/180" line sapcing. (i.e., Epson LQ-2500 = 27,51,24)
- o The graphics mode command usually ends with two numbers telling the
- printer how many bytes of graphics data to expect. In our example above,
- these numbers are: 128 and 2.
- The numbers are based on the following calculations:
-
- #1 is the REMAINDER of 640 (dots per line) / 256 = 128
- and #2 is the QUOTIENT (whole number) of 640 / 256 = 2
-
- 24 pin printers use the High Resolution Graphics mode command.
- (Epson LQ-2500 = 27,42,38,128,2) NOTICE: Final print resolution will
- be equivalent to 9-pin quality.
-
- o Left margin indent is in DPI (Dots Per Inch) and must be added
- to the third number in line 3 (128 in the example above).
- o Pin flag is 9 for 9 pin, 24 for 24.
-
- MIDI INTERFACE CARD ADDRESS SPECIFICATION
-
- Line 8 of this file may be used to designate a non-standard addresss for
- your MPU-401 compatable midi interface card. Standard addressing is based
- on Roland's original specifications of 330 hex. Some cards allow users to
- change the board's address to an alternate location (e.g., 338 hex).
- If line 8 is blank, L.M.P will expect your card to reside at 330 hex.
- You may change this by entering the desired address on line 8 followed
- by either a carriage return or semi-colon if a comment is desired.
- Your entry must be in decimal, thus 330 hex would be 816, 338 hex = 824, etc.
-
- Line 9 of this file uses the default MPU-401 interrupt Request number of 2.
- You may alter this if necessary to match your particular card setting if it
- is user configurable.
-
- NOTICE: Proper selection and coordination of IRQ assignments can casue your
- system to malfunction irratically or more likely crash. IRQ's allow an inter-
- face card to get your computer's attention. Roland's notorious MPU-401 uses
- IRQ 2. But this can sometimes conflict with other cards in your computer such
- as a mouse, a clock/calendar card, some hard disk controllers, etc. If you
- have another device fighting over IRQ 2, then you'll have to change one of
- them to an unused IRQ number. If you find it necessary or desirable to change
- your MIDI card's IRQ, then you will have to include this number on line 9.