Ink jet recording apparatus with an inclined ink ejection surface
AssigneeCanon Kabushiki Kaisha
InventorFumihiko Nakamura
Life of this patent
Estimating the term…
Abstract
A recording part including an ink cartridge is inclined with respect to a horizontal mounting plane to incline the path of a recording sheet with respect to the vertical direction. A footer mark is recorded with an ink ejected from some ejection orifices situated on the upstream side of such an ink cartridge, i.e. from the upper ejection orifices thereof. As a result, the presence or absence of ink within the ink cartridge can be detected promptly, and whether the recording of image data has been performed normally can be judged automatically. A discharge action for the recording medium can be facilitated by utilizing its own weight.
Claims32
An image forming apparatus which performs recording on a recording medium using a recording head having an ink ejection surface in which an ink ejection orifice is formed, comprising:
- a mounting portion for mounting said recording head, said recording head being mounted on said image forming apparatus such that the ink ejection surface is inclined with respect to a vertical direction, and the ink ejection orifice ejects an ink in a direction which is different from the vertical direction;
- conveying means for conveying the recording medium, wherein a conveying path of said conveying means is located at a position opposed to the recording head along a direction inclined with respect to the vertical direction;
- a discharging part for discharging the recording medium, said discharging part discharging the recording medium along the direction inclined with respect to the vertical direction;
- and
- control means for causing said recording head to elect ink droplets in order to detect a condition of ink ejection of the recording head.
An image forming apparatus which performs recording using a recording head for recording an image corresponding to an image data onto a recording medium, comprising:
- control means for controlling the recording head so that an image for detecting may be recorded only by a part of the recording head at a predetermined position of the recording medium after a predetermined amount of image recording by the recording head is completed, the image for detecting being different from the image corresponding to the image data;
- detection means for detecting the image for detecting on the recording medium;
- and
- judgment means for judging the state of recording by the recording head on the basis of the results of detection by the detection means,
- wherein said control means controls the recording head in a first mode for recording the image for detecting, and in a second mode in which the image for detecting is not recorded.
An information processing apparatus comprising an ink jet recording apparatus and means for computation, wherein the ink jet recording apparatus performs recording on a recording medium using a recording head having an ink ejection surface in which an ink ejection orifice is formed, comprising:
- a mounting portion for mounting said recording head, said recording head being mounted on said ink jet recording apparatus so that the ink ejection surface is inclined with respect to a vertical direction, and the ink ejection orifice ejects an ink in a direction which is different from the vertical direction;
- conveying means for conveying the recording medium, wherein a conveying path of said conveying means is located at a position opposed to the recording head along a direction inclined with respect to the vertical direction;
- a discharging part for discharging the recording medium, said discharging part discharging the recording medium along the direction inclined with respect to the vertical direction;
- and
- control means for causing said recording head to elect ink droplets in order to detect a condition of ink ejection of the recording head.
An information processing apparatus using an ink jet recording apparatus and means for computation, wherein the ink jet recording apparatus performs recording using a recording head for recording an image corresponding to an image data onto a recording medium, said information processing apparatus comprising:
- control means for controlling the recording head so that an image for detecting may be recorded only by a part of the recording head at a predetermined position of the recording medium after a predetermined amount of image recording by the recording head is completed, the image for detecting is a different image from the image corresponding to the image data;
- detection means for detecting the image for detecting on the recording medium;
- and
- judgment means for judging the state of recording by the recording head on the basis of the results of detection by the detection means,
- wherein said control means controls the recording head in a first mode for recording the image for detecting, and in a second mode in which the image for detecting is not recorded.
Dependencies are inferred from the claim text.