Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
1998-11-12
2001-08-28
Le, N. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
Reexamination Certificate
active
06281910
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an ink jet recording apparatus for discharging ink onto a recording medium to record thereon.
2. Related Background Art
In recent years, an ink jet recording apparatus for discharging ink onto a recording medium for forming an image or the like has been spectacularly pervasive for office and home use. The pervasion owes not only to an improvement in the recording speed and a reduction in price, but also to higher definition of a recorded image. In order to achieve the higher definition of the recorded image, a reduced diameter and higher density of ink discharging ports of an ink jet recording head are indispensable, and as the result, the size of ink droplets discharged therefrom has also been reduced.
However, the reduction in size of the ink droplets has given rise to a problem that, when ink is discharged, a minute ink particles called ink mist are generated, and the ink mist disperses and stains a recording medium and the inside of the recording apparatus. Further, when the ink mist dispersed in the recording apparatus deposits on a mechanism for recording operation in the recording apparatus, means for controlling therefor, or the like, malfunction may be caused. In order to prevent the malfunction, the recording apparatus may be provided with a suction fan to employ a method of collecting the dispersed ink mist making use of the suction fan. However, when the ink jet recording apparatus is used for long time, another problem has been caused that the ink mist sucked by the fan is deposited in a sucking route to gradually reduce a sucking efficiency, and further, the ink mist is deposited too much in the sucking route to hold the ink mist therein.
SUMMARY OF THE INVENTION
An object of the present invention is, generally, to provide an ink jet recording apparatus of excellent reliability, which prevents staining in the recording apparatus by ink mist and malfunction thereof, and ensures recording of an image in a stabilized way for an elongated time, by efficiently collecting for an elongated time ink mist generated by the discharged ink and dispersed in the inside of the recording apparatus.
More specifically, another object of the present invention is to provide an ink jet recording apparatus for recording onto a recording medium using an ink jet recording head, comprising conveying means for conveying the recording medium, head mounting means for mounting an ink jet recording head, a fan for generating an air flow for transporting ink which is generated by the ink discharged from the ink jet recording head, floating in the ink jet recording apparatus, and unused for recording, the fan being disposed in the downstream of the air flow, and an air guiding member for guiding the air flow in the ink jet recording apparatus to the fan, the air guiding member being provided with an aperture section for sucking the air flow into the air guiding member, and removably connected to the sucking side of the fan.
Still another object of the present invention is to provide an ink jet recording apparatus for recording onto a recording medium using an ink jet recording head which discharges ink, comprising conveying means for conveying a recording medium, a head mounting means for mounting an ink jet recording head, air flow generating means for generating an air flow for transporting ink which is generated by ink discharged from the ink jet recording head, floating in the inside of the ink jet recording apparatus, and unused for recording, and an ink containment member for containing the floating ink unused for recording by containing the air flow into the inside thereof, the ink containment member having a space provided inside thereof for containing the floating ink unused for recording.
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Patent Abstracts of Japan, vol. 1997, No. 12, EPO, JP 9-216373, Aug. 19, 1997.
Hiramatsu Soichi
Kashimura Makoto
Nakano Yuji
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Hsieh Shih-Wen
Le N.
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