Question

What type of printer is used to print technical diagram of machine

Answer 1

I guess plotter would be the answer.

Plotters are special type printers that are used for printing vector graphics and technical diagrams. They are typically large in size, and draw pictures on the paper using a specialized pen, pencil, marker or any other writing tool designed specifically for this purpose. They are preferred in engineering fields mainly due to their high precision.

Though plotters are slowly becoming obsolete and are being replaced by large-format inkjet printers, they still find a wide range of applications in industry especially for producing high-accuracy technical diagrams of machines. They are also used for computer aided design (CAD) projects.

Thus, plotters are used to print technical diagrams of machines.