Method and apparatus for controlling the temperature of thermal

Details Method and apparatus for controlling the temperature of thermal Method and apparatus for controlling the temperature of thermal

1992-05-20

1993-08-10

Fuller, Benjamin R.

Recorders

Thermal recording

400120, 400121, 400126, 34082552, 34082579, 34082581, 34082582, B41J 2355

Patent

active

052353460

ABSTRACT:
This disclosure presents methods for controlling the temperature of a thermal ink jet and thermal printhead so that the quality of black and white printing, gray-scale printing, and color printing is improved. The methods control the average residual power of the columns of resistors so that the average residual power of an addressed column has a prescribed relationship to the average residual power of an unaddressed column. This is achieved by altering the magnitude of the drive voltages that drive the unaddressed resistors of the printhead matrix or by using nonprinting pulses. Methods for measuring the efficiency of the printhead are also presented.

REFERENCES:
patent: 4032925 (1977-06-01), Kos
patent: 5134425 (1992-07-01), Yeung
patent: 5144336 (1992-09-01), Yeung

Affiliated with

Also associated with

Rating

Method and apparatus for controlling the temperature of thermal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for controlling the temperature of thermal , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling the temperature of thermal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1728720