Thermosensitive gradation printer

Details Thermosensitive gradation printer Thermosensitive gradation printer

1987-02-02

1988-08-30

Goldberg, E. A.

Recorders

Thermal recording

358298, G01D 1510, H04N 123

Patent

active

047680423

ABSTRACT:
A gradation printer feeds heat-sensitive paper at a constant speed and varies the heating time and hence, the coloring area depending upon printing dots, thereby representing a shading pattern by a multiplicity of printing dots having different densities. If the number of density degradations is N, and the heating time for producing the coloring area of the maximum density gradation is T, the heating time for producing a coloring area which corresponds to each density gradation is obtained by multiplying T/(N-1) by an integer, and the heating times which correspond to the respective density gradations are arranged at substantially regular intervals with the time T/2 as the center, the time T/2 being the point at which T/2 has elapsed from the start of the heating time T.

REFERENCES:
patent: 3813677 (1974-05-01), Shimotsuma
patent: 4249186 (1981-02-01), Edwards
patent: 4401993 (1983-08-01), Moriguchi et al.
patent: 4679055 (1987-07-01), Inui et al.

Affiliated with

Also associated with

Rating

Thermosensitive gradation printer does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2091167