Thermal printing apparatus

Details Thermal printing apparatus Thermal printing apparatus

1990-10-11

1993-04-06

Fuller, Benjamin R.

Recorders

Thermal recording

346134, 346136, 400120, B41J 232, G01D 1524

Patent

active

052007618

ABSTRACT:
A thermal printer comprises a thermal head having a plurality of heating elements arranged in line in the horizontal direction, a printing data processing circuit responsive to input video signal for energizing the heating elements of the thermal head in accordance with density information of each pixel, a driving device for moving a print paper relative to the thermal head continuously in the vertical direction, a pitch setting circuit for setting a vertical print pitch according to the number of effective horizontal print lines, effective width of the thermal head in the horizontal direction and aspect ratio of a printed image, and a speed control circuit coupled to the driving device for changing a moving speed of the print paper according to the vertical print pitch, wherein an energizing time to the heating elements is fixed independent of the vertical print pitch, and the moving speed of the print paper and an interval between first printing data and second printing data are controlled in order to make density of the printed image constant independent of the vertical print pitch.

Affiliated with

Also associated with

Rating

Thermal printing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermal printing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal printing apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-539805