Ink jet printer
First Claim
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1. An ink jet printer comprising:
- recording means for jetting ink droplets while moving in a direction perpendicular to the direction of conveyance of a recording medium, to form a dot image one line by one line on said recording medium according to input data;
recording medium drying means arranged downstream of said recording means;
conveying means for conveying said recording medium through said recording means and said recording medium drying means;
means (54) for detecting regions (1 to
6) to be printed in each individual line on said recording medium having a large number of pixels; and
control means (53) for controlling a duration of time during which each individual line is dried by said recording medium drying means by controlling the speed or timing of conveyance of said conveying means in response to an output of said detecting means.
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Abstract
In an ink jet printer having a sheet conveying mechanism which changes the speed of conveyance of a recording sheet in accordance with the density of characters or a pattern to be printed to intermittently convey the recording sheet in such a manner that all printed portions are properly dried before the sheet is conveyed to a subsequent position. The recording head of the printer performs a printing operation while pushing the front end portion of the recording sheet against the platen with a sheet retaining lever.
142 Citations
1 Claim
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1. An ink jet printer comprising:
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recording means for jetting ink droplets while moving in a direction perpendicular to the direction of conveyance of a recording medium, to form a dot image one line by one line on said recording medium according to input data; recording medium drying means arranged downstream of said recording means; conveying means for conveying said recording medium through said recording means and said recording medium drying means; means (54) for detecting regions (1 to
6) to be printed in each individual line on said recording medium having a large number of pixels; andcontrol means (53) for controlling a duration of time during which each individual line is dried by said recording medium drying means by controlling the speed or timing of conveyance of said conveying means in response to an output of said detecting means.
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Specification
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Current AssigneeSeiko Epson Corporation (Seiko Group)
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Original AssigneeSeiko Epson Corporation (Seiko Group)
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InventorsFujioka, Satoshi, Takabayashi, Nobuhisa, Hirabayashi, Hiromu
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Primary Examiner(s)Hartary, Joseph W.
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Application NumberUS07/908,737Time in Patent Office890 DaysField of Search346/1.1, 346/140, 346/75, 101/424.1, 101/488US Class Current347/102CPC Class CodesB41J 11/002 Curing or drying the ink on...B41J 11/0022 using convection means, e.g...
