Incremental printing of symbolic information – Thermal marking apparatus or processes – Density control
Patent
1997-07-07
1999-05-04
Tran, Huan
Incremental printing of symbolic information
Thermal marking apparatus or processes
Density control
347189, B41J 2365
Patent
active
059009004
ABSTRACT:
An image recording method using a reversible thermosensitive recording material which is capable of assuming a transparent state when heated to a first temperature which is above room temperature, and a colored state when heated to a second temperature which is higher than the first temperature and then cooled, and a heating element, including the step of applying energy to the heating element for generating heat in such a manner as to form each picture element of an image to be formed in the recording material by a plurality of energy pulses applied thereto. An image recording apparatus for this image recording method is also described, which includes a pulse division device for dividing the energy to be applied to the heating element into the plurality of energy pulses, an ambient temperature measurement device for measuring the ambient temperature around the recording material, and a pulse-generation timing adjustment device for adjusting the timing for the generation of the plurality of energy pulses.
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Hotta Yoshihiko
Kawaguchi Makoto
Konagaya Yukio
Morohoshi Kunichika
Nogiwa Toru
Ricoh & Company, Ltd.
Tran Huan
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