Patent Number: 6,396,526

Title: Ink ribbon positioning system of a color printer

Abstract: An ink ribbon positioning system of a color printer for identifying various positions of a color ink ribbon of the color printer. The ink ribbon includes a plurality of sequentially arranged color frames for storing different color dyes. The color printer includes a thermal print head for printing the color dyes onto an object and a driving device for scrolling the ink ribbon relative to the thermal print head. The ink ribbon positioning system includes first and second light sources for emitting light beams through the ink ribbon, an optical sensor for detecting the light beams penetrating through the ink ribbon, and an identification device electrically connected to the first and the second light sources. When the driving device scrolls the ink ribbon relative to the thermal print head, the identification device will control the first and the second light sources and identify the position of each of the color frames of the ink ribbon according to an output voltage generated by the optical sensor.

Inventors: Sung; Li-Fu (San-Chung, TW), Li; Yung-Yi (Yung-Kang, TW)

Assignee: Acer Communications and Multimedia Inc.

International Classification: B41J 33/14 (20060101); B41J 035/16 (); B41J 035/18 ()

Expiration Date: 05/28/2019