Method for setting color of color ink ribbon in thermal transfer

Details Method for setting color of color ink ribbon in thermal transfer Method for setting color of color ink ribbon in thermal transfer

1990-07-26

1992-11-10

Fuller, Benjamin R.

Recorders

Thermal recording

400232, 400237E, B41J 3314

Patent

active

051628163

ABSTRACT:
The present invention relates to a method for setting a desired color in a thermal transfer printer using a color ink ribbon which has ink sections of plural colors arranged in continuous repeating units in the longitudinal direction of the ink ribbon. Taking note of the fact that in a short distance from a color detecting sensor up to a printing position, the amount of the ribbon wound up for a rotational amount corresponding to one step of a ribbon winding motor is almost constant, irrespective of the amount of the ink ribbon used, the present invention was accomplished. According to the present invention, the number of steps of the motor for feeding a color distinguishing marker on the ink ribbon is counted by a sensor and the ribbon is fed from the position of the said sensor up to the printing position by a predetermined integer multiple of steps of the counted value, whereby a desired color is set in the printer accurately.

REFERENCES:
patent: 4620199 (1986-10-01), Tatsumi et al.

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