Photo printer

Details Photo printer Photo printer

2007-07-03

2007-07-03

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Thermal marking apparatus or processes

Density control

Reexamination Certificate

active

11033155

ABSTRACT:
The photo printer has a conveyance unit, a printing unit, line sensors and a control unit. The conveyance unit conveys a roll paper along a conveyance path. The printing unit has a thermal head that prints images on the roll paper in a main scanning direction, which is perpendicular to the conveyance direction of the roll paper. The line sensors have a plurality of light emitting elements and light receiving elements disposed so as to span side edges of the conveyance path. The line sensors detect the roll paper on the conveyance path based on an amount of light received by the light receiving elements. The control unit detects a side edge of the roll paper, and also determines that a distal end of the roll paper is detected, based on the amount of light received by the light receiving elements.

REFERENCES:
patent: 2003/0227535 (2003-12-01), Enomoto et al.
patent: 05-344295 (1993-12-01), None
patent: 07-134003 (1995-05-01), None
patent: 2003-302887 (2003-10-01), None
patent: 2004-009610 (2004-01-01), None

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