Difference between revisions of "Amstrad DMP1 printer"
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It has a 2732 EPROM labelled 8DE-1 a 6116 RAM and a NEC 8039H CPU. | It has a 2732 EPROM labelled 8DE-1 a 6116 RAM and a NEC 8039H CPU. | ||
| − | P1 = 74LS04 | + | The following ICs are labelled on the PCB: |
| − | P2 = 74LS374 | + | |
| − | P3 = 74LS32 | + | P1 = 74LS04 |
| − | P4 = 74LS373 | + | P2 = 74LS374 |
| − | P5 = 6116 RAM | + | P3 = 74LS32 |
| − | P6 = 2003 | + | P4 = 74LS373 |
| − | P7 = 8039H CPU | + | P5 = 6116 RAM |
| − | P8 = 2732 ROM (8DE-1) | + | P6 = 2003 |
| − | P9 = 7404 | + | P7 = 8039H CPU |
| − | P10 = 74LS74 | + | P8 = 2732 ROM (8DE-1) |
| − | P11 = 8243 | + | P9 = 7404 |
| − | P12 = 2732 (NOT FITTED) | + | P10 = 74LS74 |
| + | P11 = 8243 | ||
| + | P12 = 2732 (NOT FITTED) | ||
SW1 dipswitch (accessible on outside) | SW1 dipswitch (accessible on outside) | ||
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Image:DMP1_1.jpg|Printer | Image:DMP1_1.jpg|Printer | ||
Image:DMP1_2.jpg|Printer with top open | Image:DMP1_2.jpg|Printer with top open | ||
| − | Image:DMP1_3.jpg|Printer (back) | + | Image:DMP1_3.jpg|Printer (back showing centronics connector and DIP switches) |
Image:DMP1_4.jpg|Printer (inside) | Image:DMP1_4.jpg|Printer (inside) | ||
Image:DMP1_5.jpg|Printer PCB | Image:DMP1_5.jpg|Printer PCB | ||
Revision as of 15:49, 3 April 2010
Amstrads first printer. DMP Stands for Dot Matrix Printer.
A very basic unit which had no descenders on letters such as y,j,q, or p, leaving for a very strange looking printout. This could be corrected (when using TasWord), but using the TasPrint program, but the effect was often not totally satisfactory.
It took only tractor feed paper and had no option or ability to accept single feed sheet.
Ribbons were tiny in comparison to other makes and ran out very quickly - they were, however, very easy to re-ink a few times.
Technical
This printer is a rebadged SEIKOSHA GP-500M-2.
It has a 2732 EPROM labelled 8DE-1 a 6116 RAM and a NEC 8039H CPU.
The following ICs are labelled on the PCB:
P1 = 74LS04 P2 = 74LS374 P3 = 74LS32 P4 = 74LS373 P5 = 6116 RAM P6 = 2003 P7 = 8039H CPU P8 = 2732 ROM (8DE-1) P9 = 7404 P10 = 74LS74 P11 = 8243 P12 = 2732 (NOT FITTED)
SW1 dipswitch (accessible on outside)
two fuses
Printer
Printer
Printer with top open
Printer (back showing centronics connector and DIP switches)
Printer (inside)
Printer PCB
Printer label
