Optical writing apparatus, image forming apparatus and computer readable information recording medium
AssigneeRicoh Company, Ltd.
InventorTOMONORI KIMURA
Life of this patent
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Abstract
An optical writing apparatus has a part configured to superpose an unauthorized copy protection pattern on image data; a control part configured to recognize the unauthorized copy protection pattern, correct image data of the unauthorized copy protection pattern in pixel unit, and control a size of an isolated dot included in the unauthorized copy protection pattern; and a writing part configured to write a corresponding image on a photosensitive body based on the thus-corrected image data.
Claims20
An optical writing apparatus comprising:
- a part configured to superpose an unauthorized copy protection pattern on image data;
- a control part configured to recognize the unauthorized copy protection pattern, correct image data of the unauthorized copy protection pattern in pixel unit, and control a size of an isolated dot included in the unauthorized copy protection pattern;
- and
- a writing part configured to write a corresponding image on a photosensitive body based on the thus-corrected image data.
A computer readable information recording medium storing a program which, when executed by one or more processors, controlling a writing apparatus configured to write, based on image data, a corresponding image on a photosensitive body, carries out the steps of:
- superposing an unauthorized copy protection pattern on image data;
- recognizing the unauthorized copy protection pattern, correct image data of the unauthorized copy protection pattern in pixel unit, and controlling a size of an isolated dot included in the unauthorized copy protection pattern.
Dependencies are inferred from the claim text.