Amstrad/Schneider Printer Character Sets
Contents
Character Set ROMs
Here are some Draft and NLQ charsets extracted from the EPROMs. In case of the DMP2000/DMP3000, additional Draft characters are probably contained in the CPUs on-chip ROM.
DMP2000/DMP2160
DMP3000
NLQ401
NLQ401 fonts
- Draft font: 232 characters at EPROM offset 16A6h..209Dh; ASCII characters and CPC symbols
- NLQ font: 103 characters, at EPROM offset 209Eh..3FFFh (pass1+pass2); ASCII characters
Encoding: 11 bytes per Draft character (same as Epson chars, but without prefix byte), 39 bytes per NLQ pass (in super-high horizontal resolution). In lack of prefix flags, underlengths are defined by software (at ROM address 090Eh..091Ch).
Mechanical Restrictions: After drawing a draft pixel, the next ONE pixel (in the same row) must be white. After a NLQ pixel, the next THREE must be white.
DMP2000/2160 fonts
- Draft font: probably somewhere in uUD7811 ROM (not dumped)
- NLQ font: 128 characters, at EPROM offset 3400h..39FFh (pass1) and 3A00h..3FFFh (pass2); ASCII characters
Encoding: 12 bytes per char (one prefix, plus eleven 8bit columns; the prefix contains underlength flag, and proportional char width info; same format as with ESC "&" command), 2-pass NLQ characters are defined identically as two draft characters (the prefix byte is having the same value in both definitions)
Mechanical Restrictions: After drawing a draft pixel, the next ONE pixel (in the same row) must be white. There is no such restriction for NLQ pixels (because they are defined in a lousy resolution).
DMP3000 fonts
- Draft font: ASCII chars probably somewhere in uUD7811 ROM (not dumped), IBM chars at EPROM offset 5000h..5xxxh
- NLQ font: circa 330 characters, at EPROM offset 5C00h..6BFFh (pass1) and 6C00h..7BFFh (pass2); ASCII, Italics, IBM characters
Encoding/Mechanics: Same as DMP2000/2160, see there.
International Characters
| 23h | 24h | 40h | 5Bh | 5Ch | 5Dh | 5Eh | 60h | 7Bh | 7Ch | 7Dh | 7Eh | |
| 0 - USA | # | $ | @ | [ | \ | ] | ^ | ` | { | | | } | ~ |
| 1 - France | # | $ | à | ° | ç | § | ^ | ` | é | ù | è | ¨ |
| 2 - Germany | # | $ | § | Ä | Ö | Ü | ^ | ` | ä | ö | ü | ß |
| 3 - UK | £ | $ | @ | [ | \ | ] | ^ | ` | { | | | } | ~ |
| 4 - Denmark | # | $ | @ | Æ | Ø | Å | ^ | ` | æ | ø | å | ~ |
| 5 - Sweden | # | ¤ | É | Ä | Ö | Å | Ü | é | ä | ö | å | ü |
| 6 - Italy | # | $ | @ | ° | \ | é | ^ | ù / ` | à | ò | è | ì |
| 7 - Spain | Pt | $ | @ | ¡ | Ñ | ¿ | ^ | ` | ¨ | ñ | } | ~ |
| 8 - Japan | # | $ | @ | [ | ¥ | ] | ^ | ` | { | | | } | ~ |
Italian chr(60h) is "`" (DMP1), or "ù" (DMP2xxx/3xxx). Japan (Yen symbol) is software selectable on DMP2xxx/3xxx only. All other chars are same for all DMP versions.
