Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2005-01-25
2005-01-25
Nguyen, Thinh (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
Reexamination Certificate
active
06846065
ABSTRACT:
A technology that reduces color unevenness due to conspicuous areas for which ink is discharged in different ink discharge sequences is provided. First and second nozzle group sets each discharges multiple ink colors including black ink are used, wherein the ink discharge sequence followed by the first nozzle group set for a given pixel during one pass of forward path main scanning is the opposite of the ink discharge sequence followed by the second nozzle group set for a given pixel during the same pass of forward path main scanning, and bidirectional printing is carried out using both the first and second nozzle group sets during both forward path main scanning and reverse path main scanning.
REFERENCES:
patent: 4593295 (1986-06-01), Matsufuji et al.
patent: 20020070999 (2002-06-01), Teshigawara et al.
patent: 955174 (1999-11-01), None
patent: 8-295034 (1996-11-01), None
Nguyen Thinh
Seiko Epson Corporation
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