Printer - Ports
| |
BIOS data |
DATA |
STATUS |
CONTROL |
RESERVED |
| LPT1, PRN |
40:08 |
03BC |
03BD |
03BE |
03BF |
| LPT2 |
40:0A |
0378 |
0379 |
037A |
037B |
| LPT3 |
40:0C |
0278 |
0279 |
027A |
027B |
BIOS data specify actual ports used
IN 378h : read last character sent to parallel printer
OUT 378h, 61h : put "a" into parallel port data register (not sent)
Printer - Command codes >Epson
Printer - Fonts
- point size / cpi
- 1 inch (2,54 cm) = 72 points
| Monospaced |
|
10 cpi: 12 pt |
|
|
12 cpi: 10 pt |
-
- Line spacing
- normal 6 LPI: 12 points per line
-
| LPI |
Maximum recommended point size |
| 2 |
36 |
| 4 |
18 |
| 6 (default) |
12 |
| 8 |
9 |
| 10 |
7.2 |
Printer - Paper
sizes, Pages
- 11"
- at standard 6 LPI: (66 lines)-( lines in top/bot margins)
- 1/2" top/bot margins: 60 lines
- PC
- Hardware - Printer