Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
1996-02-02
2001-12-04
Wong, Peter S. (Department: 2838)
Incremental printing of symbolic information
Ink jet
Controller
C347S024000, C347S087000, C347S005000
Reexamination Certificate
active
06325479
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an ink jet recording apparatus having a recording head and an ink tank mounted on a carriage thereof and arranged to move the carriage and supply an image signal to the recording head to discharge ink so as to record characters and/or images on a recording medium.
2. Related Background Art
In a computer, a word processor, a facsimile machine, a copying machine, a printer and the like, an ink jet recording apparatus has been widely used as means for recording information on a recording medium, such as paper, because noise generation can be prevented, data can be recorded at high speed and color images can easily be recorded.
The ink jet recording apparatus has a structure including a recording head disposed to oppose a recording medium so that heat energy or the like is used to discharge ink. The ink jet recording apparatus has been accommodated in an individual case or integrally included in the case of an electronic apparatus structured to produce information to be recorded and transmit the information as exemplified by a word processor, a personal computer or a facsimile apparatus which receives information from outside.
An ink jet recording apparatus for performing a color recording operation includes a recording head to be communicated with an ink tank or a recording head formed integrally with an ink tank. There have been widely used ink jet recording apparatuses of a type provided with a restoring apparatus arranged to be in contact with the recording head to absorb ink so as to restore the function of the recording head in order to maintain the quality of characters to be printed.
The conventional ink jet recording apparatus prints color images or the like by using a color recording head including inks in four colors and prints monochrome characters, such as text data, by using a monochrome recording head. That is, the recording heads and ink tanks have been changed to be adaptable to the contents to be printed.
Under the existing conditions, a restoring operation has been automatically performed regardless of the type of the recording head when the recording head has been changed.
However, the conventional structure always and automatically performs the restoring operation whenever change from the color recording head to the monochrome recording head or that from the monochrome recording head to the color recording head is performed. Therefore, if the recording head has been changed frequently, the restoring operation is performed whenever the recording head is changed. As a result, ink is wasted excessively, thus causing ink to be consumed undesirably. In particular, since a portable recording apparatus must attain desired portability, the size of the recording head and that of the ink tank must be reduced as well as the size of the ink jet recording apparatus. Moreover, ink in the ink tank must be restored efficiently when the recording head is changed.
Hitherto, the conventional apparatus usually includes an instruction means for controlling the recording apparatus to be capable of changing the recording head and to instruct the change of the recording head. The state where the change is enabled is exemplified by movement of the carrier for conveying the recording head to a position, at which the recording head can be changed. The instruction means sometimes consists of one or two keys and a variety of change modes are instructed by changing the combination of keys to be depressed or number of depressing operations.
A recording apparatus of the type having the various change modes suffers from a problem in that the change mode cannot accurately be instructed, for example, in a case where the recording head, which is being used, is changed to a new type recording head or a new type recording substance supply means. In the foregoing case, there arise problems in that the quantity of the contained recording substances in the newly mounted recording head or the recording substance supply means or a discharge restoring process, to be performed prior to performing the recording operation, is inaccurate, and that an unnecessary process is performed.
When the instruction means for instructing the change instructs to perform the control operation to enable the recording apparatus to be changed, another problem arises in that the change mode cannot be instructed and, therefore, the recording apparatus, the recording head of which has been changed, cannot be controlled accurately.
If the instruction means for instructing the change consists of one or two keys, a problem arises in that the operation becomes too complicated. What is worse, the complicated operation causes an erroneous instruction to be performed.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an ink jet recording apparatus capable of satisfactorily saving time and reducing ink consumption when a restoring operation is performed due to change of a recording head.
In order to achieve the foregoing object, according to one aspect of the present invention, there is provided an ink jet recording apparatus comprising: a movable carriage capable of moving as designed while carrying, thereon, a plurality of different recording heads for discharging ink to record characters and/or images and a plurality of different ink tanks for storing ink to be supplied to the recording heads, the recording heads and the ink tanks being changeable; restoring means for restoring the recording head; detection means for determining the type of the recording head or the ink tank; and control means for causing the restoring means to restore the recording head in a case where the detection means has detected change of the recording head or the ink tank to the recording head or the ink tank of the same type, and inhibiting the restoring means from restoring the recording head in a case where the detection means has detected change to the recording head or the ink tank of a different type.
Since the detection means for detecting the type of the recording head is provided in the structure according to the present invention, the control means determines whether the restoring operation must be performed when the recording head has been changed. As a result, the quantity of ink to be consumed when the recording head is changed can be reduced.
According to another aspect of the present invention, there is provided a recording apparatus having display means for displaying the plurality of change modes concerning change to be performed in the recording apparatus and an electronic apparatus that can be electrically connected to the recording apparatus; instruction means for selecting a desired change mode from the plurality of change modes displayed on the display means; and control means for controlling the recording apparatus in accordance with an instruction issued by the instruction means.
According to the present invention, a change mode selected from a variety of the change modes is instructed to be performed when the recording head or the recording substance supply means is changed. The recording apparatus is controlled in accordance with the instruction issued by the instruction means.
Other objects, features and advantages of the invention will be evident from the following detailed description of the preferred embodiments described in conjunction with the attached drawings.
REFERENCES:
patent: 4074318 (1978-02-01), Kapes, Jr.
patent: 5049898 (1991-09-01), Arthur et al.
patent: 5068806 (1991-11-01), Gatten
patent: 5168291 (1992-12-01), Hiramatsu et al.
patent: 5291224 (1994-03-01), Asano et al.
patent: 5357347 (1994-10-01), Hirose et al.
patent: 5363134 (1994-11-01), Barbehenn et al.
patent: 5530462 (1996-06-01), Takahashi et al.
patent: 5691750 (1997-11-01), Edwards
patent: 5731826 (1998-03-01), Hirano
patent: 5742302 (1998-04-01), Kohri et al.
patent: 0 274 435 (1988-07-01), None
patent: 0 374 762 (1990-06-01), None
patent: 0 556 011 (1993-08-01), None
patent: 0 580 421 (1994-01-01), None
patent: 0 585 923 (1994-03-01), None
Hiramatsu Soichi
Inoue Hiroyuki
Iwasaki Takeshi
Kawakami Hideaki
Kida Akira
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Vu Bao Q.
Wong Peter S.
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