Ribbon Configuration for Bidirectional Printing With Resistive Ribbon
Original Publication Date: 1984-May-01
Included in the Prior Art Database: 2005-Feb-03
An electrothermal printer capable of bidirectional printing is described. The printer comprises a carriage 20 which moves while printing on paper 21, and on this carriage 20 is mounted a print head 5, a ribbon cassette 1 and an auxiliary carriage 16. Ribbon cassette 1 includes a supply roll 2 of ribbon in the bottom of the cassette with an exit opening for the ribbon, and a take-up roll 3 on top of supply roll 2 with an opening for the ribbon to return to the cassette 1 after printing. The ribbon leaves the cassette 1, passes around idler roll 4, around print head 5, idler rolls 6 and 7, to ribbon turn-around 8, and returns on the same path but different level to drive roll 9 and to the take-up reel 3.