Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2006-10-31
2006-10-31
Lee, Thomas D. (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S003010, C358S003100, C358S003260
Reexamination Certificate
active
07130083
ABSTRACT:
When recording a gradation pixel by performing pseudo-halftone processing, the occurrence of unevenness in the density in the recorded image is suppressed. For that purpose, when recording a pseudo-halftone image using dot patterns, a dot-pattern table storing a plurality of different dot patterns is provided for each gradation value. One dot-pattern table is selected from N dot-pattern tables based on gradation-value information for each pixel. One dot pattern is selected from the selected dot-pattern table, based on position information indicated by the pixel, and recording is performed using the selected dot pattern. It is thereby possible to prevent the concentrated use of a particular nozzle of a recording head, and suppress the occurrence of unevenness in the density due to characteristics of the specific nozzle.
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Edamura Tetsuya
Fujita Miyuki
Ishikawa Hisashi
Kawatoko Norihiro
Konno Yuji
Lee Thomas D.
Thompson James A
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