Printer

Abstract

Abstract PURPOSE:To prevent the occurrence of partially imperfect printing and also of concentration difference of print by a method in which plural switches are provided to a bottom plate with printing window holes and printing operation is started when all the switches are in operation. CONSTITUTION:A switch consisting of a conductive spring plate 2 and a holder 1 supporting conductive plates 3 and 4 positioned slightly above the conductive spring plate 2 is provided to a given position on a bottom plate 5 having an oblong hole 6 through which the type of a typing ring 12 can reach a recording face 17 and holes 7 by which the moving piece 8 of the switch can be supported in a vertically slidable manner. Then, numerals to be printed are put in a keyboard, and the type ring 12 whose periphery is provided with printing types is rotationally driven to complete preparations for printing operation. And, the bottom plate 5 is pressed on a recording face 17 in such a way as to make the bottom plate 5 completely contact with the recording face 17 if the recording face 17 is flat, the moving piece 8 is pushed up so as to bring the spring plate 2 into contact with the plates 3 and 4, a voltage is applied between lead wires 9 and 10 and also to a lifting mechanism, the typing ring 12 is lowered, and printing is made.

Inventors

• 👤 Mitsuru Ogura

Bibliographic Details