Resources
User Manual (Homecomputer DDR)
Plotters Manufactured in Tchechoslovakia
Ulrich Zander’s page
Connecting to ZX Spectrum
Plottercontroller
Some programs
This plotter was intended to be used with Robotron KC87 machine. See also an experiment to draw an SVG picture using this setup.
Internals
Motherboard
Power Supply Transformer
Motors
Both motors used to move the pen and the paper are exactly the same.