Claims
- 1. A recording apparatus in which recording is effected using a black ink recording head for ejecting a black ink onto a recording material and a plurality of non-black ink recording heads for ejecting a non-black ink onto the recording material, recording being performed such that a recorded pixel comprises a plurality of dots, comprising:
- recording head driving means for driving said black ink recording head and said non-black ink recording head to discharge the inks onto the recording material;
- relative movement means for effecting a relative scanning movement between said black ink recording head and the recording material and between said non-black ink recording head and the recording material; and
- controlling means for controlling said recording head driving means such that during a first said relative scanning movement effected by said relative movement means, recording is effected by scanning, relative to the recording material, said black ink recording head with skipped dots and scanning by said non-black recording heads with skipped dots in a region of the recording material, and during a second said relative scanning movement effected by said relative moving means, recording is effected only by said black ink recording head, for pixels including the dot skipped by said black ink recording head during said first relative movement, by scanning said black ink recording head in such a region of the recording material as was scanned in said first said relative scanning movement.
- 2. An apparatus according to claim 1, wherein the non-black recording head is provided for each of yellow, magenta and cyan color ink materials.
- 3. An apparatus according to claim 1, further comprising a selector for setting a datum corresponding to an ink absorbing property of the recording material.
- 4. An apparatus according to claim 3, wherein said controller effects its controlling operation when the datum representing low ink absorbing property recording material is set in said selector.
- 5. An apparatus according to claim 1, wherein said recording apparatus comprises the black ink recording head and plural single color non-black recording heads.
- 6. An apparatus according to claim 1, wherein said volume of the black ink is larger than a total volume, per unit area of the recording material, of the non-black ink and different non-black ink discharged from the non-black ink recording heads and deposited on the recording region of the recording material to provide a mixed color of said non-black ink and said different non-black ink.
- 7. An apparatus according to claim 1, wherein said recording head discharges the ink by thermal energy and is provided with an electrothermal transducer for producing the thermal energy to be applied to the ink.
- 8. An apparatus according to claim 7, wherein said recording head discharges the ink through a discharging outlet using a pressure change which is produced by development and contraction of a bubble which is produced by film boiling by the thermal energy applied by the electrothermal transducer.
- 9. An apparatus according to claim 1, further comprising an original reading means for reading an original to be printed by said apparatus.
- 10. An apparatus according to claim 1, further comprising information sending and receiving means.
- 11. An apparatus according to claim 10, further comprising an original reading means for reading an original to be printed by said apparatus.
- 12. An apparatus according to claim 1, further comprising means for inputting information to be recorded.
- 13. An apparatus according to claim 12, wherein said input means is in the form of a keyboard.
- 14. A recording apparatus according to claim 1, wherein said non-black ink recording head is for providing mixed color image.
- 15. An apparatus according to claim 14, further comprising scanning means for scanning the recording material with the recording head, wherein said control means controls so that a number of scanning operations of the black ink recording head for forming a monochromatic image is larger than the number of scanning operations when the image is formed by said non-black ink recording head.
- 16. An apparatus according to claim 15, wherein the number of scanning operations of the black ink recording head for forming the monochromatic image is one, and the number of scanning operations when the image is formed by said non-black ink recording head is at least two.
- 17. An apparatus according to claim 1, wherein during the second relative movement, the black ink recording head eject the ink to dots provided during the first relative movement.
- 18. An apparatus according to claim 1, wherein during the second relative movement, the black ink recording head eject the ink to portions skipped during the first relative movement.
- 19. A recording apparatus in which recording is effected using a first recording head for ejecting a black ink onto a recording material to record a character or a line image and a plurality of second recording heads for ejecting a non-black ink onto the recording material to record an image other than the character or the line image, recording being performed such that a recorded pixel comprises a plurality of dots, comprising:
- recording head driving means for driving said said black ink recording head and said non-black ink recording head to discharge the inks onto the recording material;
- relative movement means for effecting a relative scanning movement between said black ink recording head and the recording material and between said second recording head and the recording material; and
- control means for controlling said recording head driving means such that during a first said relative scanning movement effected by said relative movement means, recording is effected by scanning, relative to the recording material, said black ink recording head with skipped dots and scanning by said non-black recording heads with skipped dots in a region of the recording material, and during a second said relative scanning movement effected by said relative movement means, recording is effected only by said first recording head, for pixels including the dots skipped by said first recording head during said first relative movement, by scanning said first recording head in such a region of the recording material as was scanned in said first relative scanning movement.
- 20. A method for recording black and non-black images on a recording material, said method comprising the steps of:
- providing a black ink recording head for ejecting a black ink onto the recording material, at least one non-black ink recording head for ejecting a non-black ink onto the recording material, a relative movement means for effecting a first relative scanning movement between said black ink recording head, said non-black ink recording head, and the recording material, and effecting a second relative scanning movement between said black ink recording head and the recording medium;
- ejecting the inks from said black ink recording head and said non-black ink recording head during said first relative scanning movement, skipping at least one of the dots in a region of the recording material; and
- ejecting the ink only from said black ink recording head in said region of the recording material during said second relative scanning movement, in which recording is effected for the skipped dots, by scanning over such a region of the recording material as was scanned in said first scanning movement, in order to fix recorded images onto the recording material and to increase a black image density.
- 21. A method in which recording is effected using a black ink recording head for ejecting a black ink onto a recording material and at least one non-black ink recording head for ejecting a non-black ink onto the recording material, comprising the steps of:
- providing head driving means for driving the recording heads to eject the inks from the recording heads onto the recording material;
- providing relative scanning movement means for effecting relative movement between the recording heads and the recording material;
- controlling said driving means such that during a first relative scanning movement effected by said relative movement means, the recording is effected by scanning, relative to the recording material, the black ink recording head and the non-black ink recording head with skipped dots over a region of the recording material, and during a second relative movement effected by said relative movement means, the recording is effected, only by said black ink recording head, for skipped dots, by scanning the black ink recording head over such a region of the recording material as was scanned in said first relative scanning movement.
- 22. A recording method in a recording apparatus having a first recording head for forming a plurality of black dots onto a recording material, a second recording head for forming a plurality of non-black color dots onto the recording material, and scanning means for scanning said first and said second recording heads relative to the recording material, said method comprising:
- a first recording step of effecting recording using said first and said second recording heads, based on data which has been skipped in a first predetermined pattern; and
- a second recording step of effecting recording using only said first recording head, based on data which has been skipped in a second predetermined pattern, said first and said second patterns being such that the dots recorded in said first and said second recording steps are complementary with each other.
Priority Claims (3)
Number |
Date |
Country |
Kind |
2-105624 |
Apr 1990 |
JPX |
|
2-105625 |
Apr 1990 |
JPX |
|
2-266881 |
Oct 1990 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 08/048,198 filed May 3, 1993, now abandoned, which was a continuation of application Ser. No. 07/685,210 filed Apr. 15, 1991, now abandoned.
US Referenced Citations (29)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0348181 |
Dec 1989 |
EPX |
Continuations (2)
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Number |
Date |
Country |
Parent |
048198 |
May 1993 |
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Parent |
685210 |
Apr 1991 |
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