Ink-jet printer

Details Ink-jet printer Ink-jet printer

2006-01-03

2006-01-03

Hirshfeld, Andrew H. (Department: 2854)

Incremental printing of symbolic information

Ink jet

Medium and processing means

C400S619000, C226S095000

Reexamination Certificate

active

06981766

ABSTRACT:
Many holes are formed in a platen that is so disposed as to confront a printing head. A suction fan disposed under the platen generates suction force through the holes formed in the platen to thereby bring a paper into close contact with a surface of the platen. On a back surface of the platen, disposed is an airflow restriction plate formed with openings that correspond to a part of the holes in the platen. Before a leading edge of the paper arrives at the platen, the airflow restriction plate closes the holes. In association with a conveyance of the paper, the airflow restriction plate moves in a paper conveyance direction on the back surface of the platen and, at the same time, opens the closed holes sequentially from upstream in the paper conveyance direction. This can restrict inflow of air into the holes located downstream, in the paper conveyance direction, of the leading edge of the paper.

REFERENCES:
patent: 4173301 (1979-11-01), Turini et al.
patent: 4998715 (1991-03-01), Milan et al.
patent: 5442420 (1995-08-01), Tsuji
patent: 5923942 (1999-07-01), Nuggehalli et al.
patent: 6340155 (2002-01-01), Madsen et al.
patent: 1 120 266 (2001-08-01), None
patent: 1 223 042 (2002-07-01), None

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