Comb printers

Comb printers, as well as called line matrix printers, characterize the fourth main design. These printers were a mixture of dot matrix printing as well as line printing. In this printer, a comb of hammer printed a part of a line of pixels at one point. By changing the comb back and forth a little, the whole pixel row might be printed. The paper then superior and the next pixel row were printed. As far less motion was concerned than in a dot matrix printer, these printers were extremely fast compare to dot matrix printers in addition to were aggressive in speed by formed-character line printers as also being capable to print dot-matrix graphics as well as variable-sized typescript.

Printronix plus TallyGenicom are well known vendor of this comb printers.

Since all of these printing methods create a lot of noise, line printers of all design were forever enclosed in resonance absorbing cases of unreliable erudition.