Does anyone know what this is?
I have a TM-T88V printer with the IDN RJ11 RS422 interface and I am trying to make it print something...
In a previous life about 30 years ago I used to design printer interface cards (centronics, rs232, etc) and looking at the Epson-manufactured interface card in this printer it has a processor and since there is an address dipswitch it is obvious that the processor is looking for an address and stuff after the address is passed on to the printer.
If I put the printer in the hex mode and power it up, it prints a load of data which starts with ESCape sequences and these obviously are generated by the interface card. But the addressing protocol is nowhere to be found!
Most printers just print the bytes you send them, give or take various control characters. This printer prints nothing until it sees that addressing sequence.
Many thanks in advance for any pointers.
I have a TM-T88V printer with the IDN RJ11 RS422 interface and I am trying to make it print something...
In a previous life about 30 years ago I used to design printer interface cards (centronics, rs232, etc) and looking at the Epson-manufactured interface card in this printer it has a processor and since there is an address dipswitch it is obvious that the processor is looking for an address and stuff after the address is passed on to the printer.
If I put the printer in the hex mode and power it up, it prints a load of data which starts with ESCape sequences and these obviously are generated by the interface card. But the addressing protocol is nowhere to be found!
Most printers just print the bytes you send them, give or take various control characters. This printer prints nothing until it sees that addressing sequence.
Many thanks in advance for any pointers.