| 摘要 |
PURPOSE:To contrive the elongation of the service life time of a printing head, by fixing a wire impact type printing head and a ball-point pen type printing head onto the same carriage. CONSTITUTION:In this printing mechanism part, a wire impact type printing head 1 and a ball-point pen type printing head 6 are fixed to a carriage 2. Respective printing heads 1, 6 are so attached thereto that the distance L between their center lines become integral times the printer basic blank form feed pitch (minimum pitch) DELTAl on the surface of a platen 4. Thereby, printing can be carried out by respectively allotting the printing to respective printing heads according to the printing pattern. The service life time of printing head can thus be lengthened. |
