Hi my name is santhosh, i am trying to inerface printer(epson lx 300) with microcontroller. But the problem is i am getting junk characters in the printing...
i have used 8 data lines,strobe and busy lines. I am using parallel port to interface printer.
can any one help me..
Some potential problems.
1) Wrong voltage levels. 2) Incorrect timing (settle and hold times) 3) Permutated data bits. 4) Bouncing signals. 5) Too high signal load.