Laser-based thermal printer

Details Laser-based thermal printer Laser-based thermal printer

2007-10-02

2007-10-02

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Thermal marking apparatus or processes

Preheating

Reexamination Certificate

active

11084669

ABSTRACT:
One embodiment described pertains to a thermal printer is provided having a spatial light modulator (SLM) to modulate light from a laser source to record information on a thermal-sensitive surface of a recording medium, and a heater adjacent to the medium to preheat the thermal-sensitive surface prior to recording of information thereon. The printer may further include illumination optics for focusing the light beam onto the SLM, and imaging optics to image the light on the thermal-sensitive surface. The heater may comprise a resistive, a convective or a radiant heater. The printer may further include a feed mechanism with a roller having an outer surface in contact with the recording medium for feeding it past the imaging optics, and the heater may be disposed inside of the roller to heat the recording medium in contact with the roller. The heater may be arranged to heat the entire outer surface of the roller, or only a portion thereof. Other embodiments are also described.

REFERENCES:
patent: 4994852 (1991-02-01), Matsuuchi et al.
patent: 5550571 (1996-08-01), Shoji
patent: 6431685 (2002-08-01), Misumi
patent: 6784910 (2004-08-01), Sato et al.
patent: 6819348 (2004-11-01), Tamura et al.
patent: 6822665 (2004-11-01), Sugiyama et al.

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